001 FXUS66 KSEW 281729 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 929 AM PST Fri Nov 28 2025 .SYNOPSIS... Showers have largely tapered off as low pressure system exits the area and high pressure builds into the region in its wake. An overall cooler and drier trend will continue into next week, though a few weak disturbances moving across the area may bring some additional shower chances on Saturday and Monday night. A stronger system may approach western Washington late next week. && .SHORT TERM /TODAY THROUGH SUNDAY/... Some breezy northeasterly winds will continue this morning in western Whatcom county before tapering off in the early afternoon. Gusts have gotten to 25 mph in Bellingham thus far. Conditions will then dry out through the day as high pressure starts to build over the northeastern Pacific. Clearing will make way for some sun and afternoon highs will climb into the low to mid 50s. The rest of the previous discussion can be found below. Northwesterly flow aloft will persist over the region through the weekend as a ridge of high pressure amplifies over the northeastern Pacific. A weak disturbance riding the periphery of the ridge looks to move across the area on Saturday and looks to primarily increase cloud cover across the area, though could see some light rain for portions of western Washington. Temperatures will cool, with afternoon highs expected to be in the mid to upper 40s across the interior and low 50s along the coast. Overnight lows will be in the mid to upper 30s on Saturday and will fall to the low to mid 30s on Sunday morning. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... Cool and dry conditions will persist Sunday night and will make for a chilly start to Monday morning, with overnight lows expected to be in the low to mid 30s across the interior and upper 30s along the coast. Ensembles remain in decent agreement over another disturbance moving into the area Monday night into Tuesday under the northwesterly flow aloft. At this time, the system does not look to be very impactful to the area and mainly and looks bring light rain to the lowlands and light snow to the mountains. The ridge of high pressure then looks to briefly rebound over the northeastern Pacific near midweek, positioning the storm track more towards British Columbia. A more substantial system looks to move into British Columbia around midweek and may then sink southward into the area by Thursday as the ridge over the Pacific starts to weaken. 14 && .AVIATION... High pressure will keep the skies mostly clear throughout the day today, with widespread VFR conditions expected. Surface winds will be out of the north to northeast, with gusts up to 25 kts through the morning expected at KBLI before tapering off in the afternoon. The forecast challenge late tonight into early tomorrow morning becomes about fog potential. Given the recent moisture, it is still possible, but continued northeasterly to easterly flow will act to dry out the surface and limit fog development. For now, the TAFs for the terminals susceptible to fog such as OLM and PWT have fog and/or lower stratus in them toward the end of the period, but this will be monitored and adjusted in future updates. KSEA...Continued clearing at the terminal can be expected this morning with northeasterly flow. Surface wind speeds will be at 7 kts to 12 kts until around 01Z before easing to 5-6 kts, remaining NE throughout the period. The potential for fog/stratus tomorrow morning given recent rainfall is not totally eliminated, but increasingly unlikely under continued northeasterly flow acting to dry out the surface layer. That potential is written in the TAF around 13Z tomorrow, but will be updated as more guidance arrives. 21 && .MARINE... Easterly/northeasterly offshore winds developing across the waters this morning with building high pressure over the area. Have maintained advisories into the afternoon for many locations including the northern interior waters and adjacent eastern Strait of Juan de Fuca and the west entrance of the Strait and adjacent coastal waters where winds to 35 kt are expected to continue through the afternoon. Have also maintained the advisory for the southern coastal waters as offshore winds will continue to develop from Grays Harbor and extending offshore; this area is more marginal though, and winds likely diminish late this morning in this area. Seas remain rather steep but below advisory criteria over the coastal waters. A weak disturbance Saturday won`t do much to impact the marine conditions, but seas build closer to 10 ft around Monday. 12 && .HYDROLOGY... With precipitation ending over the basin, the Skokomish River in Mason County has started to crest this morning and will continue to subside over the next few days with no additional significant precipitation expected. Flooding is not expected over the next seven days as the weather pattern across western Washington trends cooler and generally drier over the next several days. && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...Small Craft Advisory until 2 PM PST this afternoon for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm- Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-Grays Harbor Bar-West Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory until 4 PM PST this afternoon for East Entrance U.S. Waters Strait Of Juan De Fuca-Northern Inland Waters Including The San Juan Islands. && $$

711 FXUS66 KPQR 281812 AAA AFDPQR Area Forecast Discussion...UPDATED National Weather Service Portland OR 1012 AM PST Fri Nov 28 2025 Updated discussion and hazards. && .SYNOPSIS... Showers taper off through the morning today, becoming dry by this evening. Gusty east winds expected through the western Columbia River Gorge and over the Cascades and north Oregon Coast Range tonight into Saturday morning. A weak shortwave Saturday brings slight chances for rain Saturday, mainly for the terrain. Cooler low temperatures Sunday and Monday before another weak shortwave returns slight rain chances Tuesday. Dry weather returns Wednesday with cooler morning temperatures Wednesday and Thursday mornings. && .SHORT TERM...Now through Monday...The low pressure system that approached the coast last night has stalled along the far northern Oregon coast, just south of the Washington border. It has slowly weakened overnight and will continue to weaken as it slowly moves south along the northern Oregon border before retrograding to the west back into the eastern Pacific off of the coast of the Tillamook area. Wind gusts peaked before midnight around 35-45 mph for the inland lowlands north of Salem and 40-50 mph along the coast and Cascades with isolated gusts to 50-60 mph on the wind prone beaches and headlands along the coast. Winds are decreasing early this morning and should be below 20 mph for most locations except for the high Cascades by 6-8 AM. Additionally, the band of moderate to heavy rain that moved through last night is now over the Cascades with light showers or drizzle to the west of the Cascades. This showers will mostly dissipate through the morning hours with widespread dry conditions by this evening. Weak high pressure builds over the area tonight into early Saturday with model guidance indicating surface pressure gradients tightening over the Cascades as a surface low digs south into Montana and Wyoming. CAMs indicate the pressure gradient from PDX to DLS could tighten to -5 to -7 mb late tonight through Saturday morning, which would allow breezy east winds to develop over the Cascades, north Oregon Coast Range, and through the western Columbia River Gorge. REFS and HREF suggest peak wind gusts of 30-35 mph over the terrain and through Cascade gaps, 35-45 mph through the western Columbia River Gorge, and 25-30 mph into Troutdale and the eastern Portland metro area. Additionally, NBM does indicate a 10-20% chance of gusts up to 50-60 mph in the windiest areas around the Columbia River Gorge, such as in the south Washington Cascades at Three Corner Rock and Larch Mountain. An upper shortwave and associated surface front are slated to move south from western Canada into Washington and Oregon Saturday into early Sunday, which will break down the tight surface pressure gradients and allow east winds to weaken by Saturday afternoon. This weak system will bring a slight chance of showers to the area, first to the coast and high elevations in the afternoon, spreading to the interior valleys by the evening, with dry conditions returning by Sunday morning. Limited precipitation is expected with this system, with amounts mainly less than 0.1 inch over the Cascades and more of a drizzle or light rain elsewhere. Colder arctic air will infiltrate the region first with the building high pressure and additionally with this weak weather system. This will allow snow levels to fall to pass level Saturday afternoon and down to 1500-2500 ft in the far north Oregon Cascades and SW Washington Cascades and to 3500-4500 ft in the central Oregon Cascades. However, with overall precipitation expected to be limited, so will any snow that does develop. Expecting less than 1-2 inches at the high Cascades with mainly snow falling and not sticking to roadways at or below pass level. The cold air funneling into the area behind the shortwave will allow for colder overnight and morning temperatures Sunday morning and Monday morning. Sunday morning, expect widespread low temperatures in the mid to upper 30s across the interior lowlands with only colder pockets outside of urban areas nearing freezing. Monday morning is still expected to be the coldest morning with a 60-80% chance of lowland locations outside of urban areas to fall below freezing. In urban areas such as Salem and Eugene, probabilities fall to 30-45%, and to 5-15% for the Portland metro area and downtown Vancouver. The outskirts of the Vancouver metro area, around and north of Highway 500 and east of Interstate 205, probabilities increase rapidly to 40-60%. Daytime temperatures on Sunday will be on the cooler side, as well, with interior lowlands struggling to reach 50 degrees and 30s to 40s in the Cascades. Daytime temperatures warm slightly on Monday as high pressure builds over the region, though mainly for the Cascades.-03 .LONG TERM...Monday night through Thursday...Ensemble guidance is in good agreement that the high pressure won`t last long as another weak shortwave will move through the region from the north on Tuesday. This will bring another round of shower chances with limited precipitation accumulation but also warmer temperatures due to increased cloud cover. At this point, ensembles indicate this shortwave won`t be as deep or track as far west as the Saturday wave, and as such it won`t bring as much cooler air into the region. Still, ensembles are in very good agreement that upper level ridging is once again slated to build over the PacNW Wednesday into Thursday, bringing dry conditions and likely clear skies. These clear skies will allow for radiative cooling in the overnight and morning hours, so morning low temperatures Wednesday and Thursday could once again fall into the 30s Wednesday and Thursday morning. -03 && .AVIATION...Light rain showers and drizzle continue this morning, especially in the Cascades and eastern portions of the Willamette Valley. Largely mixed MVFR/IFR cigs remain in place with intermittent vis restrictions, but are expected to trend toward MVFR by the early afternoon as lingering showers end. Conditions will ultimately improve to VFR by 00z Sat as high pressure builds inland, driving increasing offshore flow. While easterly to southeasterly flow through terrain gaps including the Columbia River Gorge has brought gusty east winds to KTTD, generally southerly flow at 5-10 kt elsewhere will turn out of the north at Willamette Valley terminals and out of the east elsewhere by this afternoon to evening. KPDX AND APPROACHES...IFR/low-end MVFR cigs improving to VFR by mid-afternoon as cigs lift. Intermittent light rain showers this morning may result in brief vis restrictions, before lingering showers end in the next 3-6 hours. East to southeast winds at 5-10 kt continue through much of the period, increasing by 06z Sat to 10-15 kt with gusts of 20-25 kt. -36 && .MARINE...A low pressure system has stalled just south of the mouth of the Columbia River overnight Thursday night and has begun to weaken. It will continue to weaken through Friday, slowly moving south along the north Oregon coast in the morning before retrograding and moving west out into the eastern Pacific through zones PZZ252 and PZZ272 in the afternoon. Expect variable winds through the morning, turning east to southeast in the afternoon in the wake of the low. Winds have been decreasing overnight and are expected to be below 20 kts by 4 AM PST Friday. Additionally, seas have fallen to the low teens, and are expected to remain around 9-11 feet at 11-12 seconds through the morning hours. Seas have lingered right around criteria so the Small Craft Advisory has been extended through 4 PM PST Friday. Conditions along the bar have fallen and are less of a concern so the advisory has been allowed to expire. Offshore flow will continue through Saturday with winds generally at 10 kt or less, although areas downstream of gaps in coastal terrain may see locally stronger east winds. As high pressure builds Sunday into early next week, winds will shift north to northwest at 10-15 kt. Seas will fall to 5-8 ft by Saturday and will continue through next week. -03 && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...Small Craft Advisory until 4 PM PST this afternoon for PZZ251>253-271>273. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

740 FXUS66 KMFR 281808 AFDMFR Area Forecast Discussion National Weather Service Medford OR 1008 AM PST Fri Nov 28 2025 .DISCUSSION...Updated aviation discussion. && .AVIATION...28/18z TAFs...Overall, aside from local MVFR/IFR along the coast, this afternoon through early this evening should be VFR. But, areas of valley LIFR/IFR are expected to follow later this evening into Saturday morning in the Umpqua/Rogue/Illinois and lower Klamath basins. These should clear to VFR again Saturday afternoon. -Spilde && .MARINE...Updated 800 AM PST Friday, November 28, 2025...Conditions will gradually improve today as winds and seas ease, but steep seas will continue through this afternoon. Conditions continue to improve tonight through Saturday, but northerly winds then increase and remain gusty early next week. Conditions hazardous to small craft could return south of Cape Blanco on Sunday. Meanwhile, a long period swell (peaking around 6 to 9 ft at 16 to 19 seconds) builds in the waters Monday into Tuesday, which could maintain advisory level conditions early next week into Wednesday. && .PREV DISCUSSION... /Issued 547 AM PST Fri Nov 28 2025/ DISCUSSION...Model agreement is excellent today through Monday night, with a high probability of near normal to slightly above normal temperatures and mostly dry weather through Thursday. We say mostly dry because there will be a series of very weak to weak disturbances brushing past our area in a northwest flow aloft during the next week. Timing looks to be mainly before 10 AM this morning for rain chances from the first one, with the highest probability from the coast and across northern portions of Douglas and Klamath counties. Precipitation will be focused north of our area. Otherwise, the main aspect of our weather will continue to be night and morning valley low clouds and fog/freezing fog. An increase of high clouds today may hinder the clearing of the valley low clouds. Inversions look to be stronger tonight with more extensive coverage of the valley fog/freezing fog on Saturday morning. A second/similar trough is expected to swing through from the northwest Saturday night into early Sunday. With the next forecast update this afternoon, it is possible that an areal expansion and/or increase in slight chance precipitation probabilities may be warranted, with the 06Z GFS as a noteworthy portion of the minority of wetter solutions showing a dusting to an inch of snow for the Cascades and Warner Mountains after 7 PM Saturday night until around sunrise Sunday with a snow level falling from around 5000 feet to 4200 feet msl. In the wake of this disturbance, an episode of building west-northwest long period swell is likely Monday into Monday night. Please see the section below for the description of a risk of sneaker waves at area beaches. The third very weak, and possibly weakest, disturbance is expected Tuesday night into Wednesday. The highest probability is for an increase of upper level clouds and a brief episode of virga. More active, more broadly impactful weather is possible late next week, as early as early Friday. But, there is also a sizeable contingent of weaker solutions that continue the current theme. For now, we will go toward a compromise, with a mention of a chance of mainly west side precipitation on Friday. AVIATION...28/12z TAFs...A slight chance to chance of showers will continue this morning for the coast and into northern portions of Douglas and Klamath counties northward. A mix of IFR and MVFR will accompany the showers. Otherwise, patchy valley IFR will persist through around 18Z this morning, particularly in the Rogue Valley including Medford. Improvement to VFR is expected from late morning into early evening. But, areas of valley LIFR/IFR are expected to follow this evening into Saturday morning in the Umpqua/Rogue/Illinois and lower Klamath basins. MARINE...Updated 200 AM PST Friday, November 28, 2025...Gusty southwest winds will diminish this morning. Meanwhile, northwest swell is also diminishing, but seas will remain high and steep through this afternoon. Conditions will continue to improve tonight through Saturday, but northerly winds then increase and remain gusty early next week. Conditions hazardous to small craft could return south of Cape Blanco on Sunday. Meanwhile, a long period swell (peaking around 6 to 9 ft at 16 to 19 seconds) builds in the waters Monday into Tuesday, which could maintain advisory level conditions early next week into Wednesday. BEACH HAZARDS/HIGH SURF...Updated 300 AM PST Friday, November 28, 2025...Buoy guidance shows the potential for a high sneaker threat beginning Monday morning and possibly continuing through early Tuesday morning. Guidance shows a long period swell arriving Monday, first arriving at around 3 to 5 ft at 21 to 22 seconds early Monday morning, which coincides with the incoming high tide that is anticipated by 8 am PST Monday morning. While sneaker waves can occur at any time, the greatest risk is on an incoming tide. As confidence increases in this potential, we may need to consider a Beach Hazards Statement to highlight this threat. This swell is only expected to peak at around 7 to 10 ft at 16 to 18 seconds Monday night, so we currently don`t anticipate any high surf conditions at this time. If you have plans to visit the coast next week, particularly on Monday, please be aware of this potential and consider rescheduling your ventures to the beaches for another day. Sneaker waves run up significantly farther on beaches than normal. These waves can wash over rocks and jetties and can suddenly knock people off of their feet and sweep them into the ocean. They can also move logs or other objects which could crush or trap anyone caught underneath. Remember, NEVER turn your back on the ocean! /BR-y && .MFR WATCHES/WARNINGS/ADVISORIES... OR...CA...None. PACIFIC COASTAL WATERS...Small Craft Advisory until 4 PM PST this afternoon for PZZ350-356-370-376. && $$ MAS/MAS/MAS

631 FXUS66 KEKA 280833 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 1233 AM PST Fri Nov 28 2025 .SYNOPSIS...Coastal areas will experience mostly cloudy skies and bouts of drizzle through this morning, primarily for Del Norte and northern Humboldt. Otherwise, dry and seasonably cool weather is forecast for the next 7 days. A highly energetic long period west swell will bring an increased risk for hazardous beach conditions Monday through Tuesday next week. && .DISCUSSION...A weak cold front continues shifting east-southeast and exiting the forecast area. This brought light rainfall and sprinkles, especially for Del Norte and northern Humboldt counties. A deep saturated layer will continue to promote drizzle along the North Coast through this morning. Areas of valley low clouds and fog have developed overnight with a strong radiational cooling. This low clouds area expected top slowly lift throughout the day, with high clouds spread across the area by the afternoon. Northwesterly flow aloft occurring downstream from the ridge will favor dry weather and seasonably temperatures over NRN California. High temperatures are forecast to be generally in the mid 50s to mid 60s. While ridging continues to build over the Gulf of Alaska, an approaching closed low near 40N/130W will drift southward well offshore the California Coast through the weekend. Another shortwave trough will swoop down across the Pacific NW into the Great Basin over the weekend. Otherwise, dry and seasonably high temperatures is expected. Breezy northerly winds is expected to developed along the coastal headlands and exposed ridges on Sunday. Offshore winds are expected to develop over the higher terrain across the interior Sunday evening and increase into Monday morning, with the strongest winds anticipated over the eastern portion of Lake County where gusts up to 35 mph are possible. Overnight frost and freezing morning temperatures will once again be prime concern for those with sensitive plants. /ZVS ...EXTENDED DISCUSSION...(Tuesday through Friday)... Above normal 500mb heights will most likely (80% chance) keep much of Northwest California in a long stretch of dry weather all next week. However, a third shortwave trough may (18% chance) generate fleeting showers for Del Norte and mountains of Trinity on Tuesday. This second insider slider trough will carve out a larger scale trough that will promote blustery N and NE winds around mid week. With lower dew points, calm winds in the valleys, clear skies and long nights, the threat for frost or freezing temperatures will once again crop up. A killing freeze has already occurred multiple times in Trinity, northern interior Mendocino and northern Lake Counties. We have suspended issuing frost and freeze products for these areas until spring. Cold weather products for wind chill may be necessary if an unseasonably cold air mass settles over the area around mid next week. There are subtle signs of omega block break down or a westward shift in the longwave the following weekend of Dec 6-7 and consequential precip will be possible. /DUG && .AVIATION...A weak passing cold front generated periods of light, shallow rain along the coast through the evening hours. Further rain is unlikely through the night, but lingering moisture has created IFR fog in some locations along the coast, especially round Humboldt Bay. IFR visibilities will gradually decrease into the morning, with most models showing clearing to MVFR (90% chance) quickly by sunrise. There is model disagreement during the day. Most (70%) showing ceilings scattering to VFR but a minority show some ceilings persisting through the day. Similar disagreement is evident Friday evening as well with a solid 30% of models showing a shallow IFr marine layers but the rest staying more clear along the coast. Otherwise, widespread valley fog will most likely continue to effect the interior during the overnight and morning hours into the weekend. /JHW && .MARINE...Weak northerly winds have quickly built throughout the waters behind a passing cold front. The sea state is currently controlled by a mid period westerly swell around 10 feet, leading to moderately steep seas. This swell will quickly decay through the day Friday with mostly calm conditions headed into early Saturday. Another mid period westerly swell will begin to build Saturday night into Sunday, again bringing mostly mild seas up to around 8 feet. Northerly winds will increase in the outer waters through the day Sunday, especially south of Cape Mendocino, with some gusts near 30 kts. Winds and steep short period seas, however, will most likely remain far from shore with much calmer conditions in the inner waters. Similar northerly winds will continue in the outer waters early next week. A long period westerly swell up to 12 feet will begin to impact the waters Monday into Tuesday. Around the same time, northerly winds will most likely push closer to shore with potential (40% chance) for solid gale force conditions around midweek. /JHW && .BEACH HAZARDS...A series of mid period westerly swells will continue to impact the waters through the weekend. The next swell will build up to 8 feet at 14 seconds beginning Saturday afternoon into Sunday. With mostly calm short period seas, the forerunners of this swell especially will pose a moderate sneaker wave risk Saturday evening with unexpected and inconsistent surf on area beaches. A second sneaker wave risk is possible as longer period swell builds Monday into Tuesday, but the overall risk of this swell is more uncertain due to the potential for short period seas to push closer to shore around the same time. In any case, the swell will increase surf and make local beaches more hazardous. /JHW && .EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 9 AM PST Friday for PZZ450-470. Small Craft Advisory until 9 AM PST Friday for PZZ455-475. && $$ NOTE: The full forecast discussion is now regularly issued between 10 am/pm and 1 pm/am. Additional updates will be issued as needed. Visit us at https://www.weather.gov/eureka Follow us on Facebook and Twitter at: https://www.facebook.com/NWSEureka https://www.twitter.com/NWSEureka For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png

160 FXUS66 KMTR 281822 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 1022 AM PST Fri Nov 28 2025 ...New UPDATE, AVIATION, MARINE... .KEY MESSAGES... Updated at 101 AM PST Fri Nov 28 2025 - Pattern change brings milder temperatures today - No major changes in the forecast weather through the next week && .UPDATE... Issued at 959 AM PST Fri Nov 28 2025 Ample low level moisture, lack of strong mixing, and a more moist profile through 5k feet has led to another cool and cloudy start. Pretty much a repeat of the last few days with solid clouds for N and E Bay Valleys, in SF Bay and a new addition this AM is Santa Clara Valley. A slow clearing of clouds is expected again with far interior N and E Bay lingering the lastest. As such, below seasonal temperatures until we get some insolation at the surface for the N and E Bay. The inversion is pretty compressed too so some fog in the 1-3 mile range will continue as well. No update needed this morning. MM && .SHORT TERM... Issued at 101 AM PST Fri Nov 28 2025 (Today and tonight) Satellite imagery shows high-level clouds over the Bay Area, associated with a weakening frontal boundary that is moving across the state. Stratus decks are also visible across the North and East Bay valleys and parts of eastern San Mateo County and the Santa Clara Valley. The stratus decks will stay in place through sunrise and for a couple of hours afterward, with some areas remaining socked in through the day, but the upper level disruption of the passing front may be enough to keep the widespread dense fog away this morning. In the event that patchy dense fog does form, drivers should slow down, use low beam headlights, and leave extra space between them and the car in front. Today marks a transition period between the departure of the ridge that has brought us seasonally warm weather these last few days and the development of a very strong ridge over the Gulf of Alaska which will promote downstream troughs into the contiguous 48 states. The daytime should feature sunny skies for most people, with lingering stratus possible in areas of eastern Contra Costa and Alameda counties connected to the Central Valley, in addition to western parts of San Francisco and San Mateo Counties. High temperatures today will range from the upper 50s to the middle 60s across most of the Bay Area, the middle 60s to lower 70s across inland parts of the Central Coast, and the lower to middle 50s across the highest mountain peaks and ridgelines. These high temperatures may need to be adjusted downward if stratus lingers longer than expected across a place. && .LONG TERM... Issued at 101 AM PST Fri Nov 28 2025 (Saturday through Thursday) It might be the day after Thanksgiving but the weather pattern might make some people recall Groundhog Day. There will be a couple of troughs digging into the Intermountain West but these will remain displaced too far east to give us any significant concerns. For our region, the next week should feature a rather persistent forecast light offshore flows, seasonally mild temperatures, and dry and clear skies, which should help eat away at the pool of stratus that has developed across the Central Valley. There is a very slight chance (10-15% probability at most) of light precipitation towards the latter part of next week if one of the troughs digging into the Intermountain West deepens into a cutoff low that retrogrades over southern California and merges with a second cutoff low coming in off the coast, but the probabilities are so low and the nuances numerous enough that the forecast remains highly uncertain. CPC outlooks for December 5 to 11 features a slight lean towards precipitation totals above seasonal averages for the Central Coast, but the key word here is slight with the CPC putting the probabilities around 33-40%. For context, the seasonal average rainfall total for Salinas Airport for that period comes in at just under half an inch. && .AVIATION... (18Z TAFS) Issued at 959 AM PST Fri Nov 28 2025 Another challenging and impactful morning for Bay Area terminals due to another push of low clouds and patchy fog. Lack of mixing has led to slow clearing - if you want to call it that. OAK will be VFR through this afternoon, but SFO and SJC will struggle. Pushed back clearing, but could see it even delayed 19-20Z. N and E Bay SCT late again 20-21Z. Monterey Bay VFR. Will bring clouds and patchy fog again tonight. Vicinity of SFO...Cams show pockets of blue NE of terminal. Will keep IFR conditions through 19Z, but could see gradual clearing 19-20Z. Expecting VFR this afternoon. IFR cigs again tonight impacting Sat AM rush. SFO Bridge Approach...Low cigs impacting approach too, just like SFO. VFR later this afternoon. Monterey Bay Terminals...VFR. A few clouds may develop tonight, but not until late. Hi-res guidance keeps drier air around Monterey Bay and went drier. && .MARINE... (Today through Wednesday) Issued at 959 AM PST Fri Nov 28 2025 Northerly flow will persist over the coastal waters. Winds will be locally stronger to fresh breezes south of Point Pinos until Saturday. Winds will decrease early Saturday before increasing late Saturday into early next week. Hazardous marine conditions return midweek as a cut-off low moves through the coastal waters with winds increasing and wave heights building due to incoming long period westerly swell. && .BEACHES... Issued at 338 AM PST Fri Nov 28 2025 Moderate to long period northwesterly swell will result in an increased risk for sneaker waves and rip currents. Breaking waves of 13 to 18 feet are expected. A beach hazards statement is in effect for the coastline from Sonoma County to Monterey County through 10 PM PST Sunday evening. Sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. Rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...Beach Hazards Statement through Sunday evening for CAZ006-505- 509-529-530. PZ...Small Craft Advisory until 9 PM PST this evening for Pt Pinos to Pt Piedras Blancas 0-10 nm. && $$ SHORT TERM...DialH LONG TERM....DialH AVIATION...MM MARINE...MM Visit us at www.weather.gov/sanfrancisco Follow us on Facebook, X, and YouTube at: www.facebook.com/nwsbayarea x.com/nwsbayarea www.youtube.com/nwsbayarea

350 FXUS66 KOTX 281716 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 916 AM PST Fri Nov 28 2025 .KEY MESSAGES... - Snow impacting travel along I-90 over Lookout Pass this morning. - Colder temperatures over weekend into next week with occasional chances for snow. && .SYNOPSIS... A weather system this morning will bring a mix of rain and snow to the valleys in the Idaho Panhandle and snow to the mountains, including travel over Lookout Pass. Temperatures cool to below normal over the weekend. A couple weather system one around Saturday and another early next week will bring the potential for additional light snow. && .DISCUSSION... Today and Tonight: A shortwave trough of lower pressure is making its way across the Inland Northwest this morning. The bulk of the upper level dynamics with a potent vorticity maximum and a surface low spinning up and tracking from around the Northeast Blue Mountains and Palouse region at 2 AM to the southern and central Idaho Panhandle by 5-6 AM this morning. This will be the area across the southeast portion of the forecast area that receives the heaviest precipitation on the order of 0.2 to 0.4 inches through this morning. Cyclogenesis that occurs will also tighten up the northerly gradient across the northern mountain zones drawing in colder Canadian air that will result in a drop in snow levels. A convergence boundary where the surface low tracks will also create favorable lift and result in a period of at least moderate precipitation intensities. All of these factors should drop snow levels down to around 3,000 feet across the Central Panhandle Mountains this morning wet snow will fall across 4th of July Pass with slush accumulations at least along the shoulder of I-90. I don`t anticipate that impacts will be seen over this pass, but can`t completely rule out a quick dusting of snow as the back edge of the precipitation pushes through. Lookout Pass will be high enough that I do expect the road to see accumulating snow with a 6 hour window into Friday morning where the pass becomes snow covered where the Winter Weather Advisory is on track with 2-4 inches over the pass. Drier air dropping down out of BC should result in snow intensities decreasing across the northern mountain valleys from light accumulating snow to flurries to skies clearing. Winds down the Okanogan Valley with a tight northerly gradient will be gusty this morning gusts up to around 20-30 mph. The drier air will quickly fill in with the exiting low by late morning and early afternoon in which precipitation will wind down and clouds quickly clear out giving way to sunshine through the afternoon. Clouds will then fill back in from the west ahead of the next shortwave disturbance for Saturday. This next one though will have much more limited out of moisture to work with. Saturday through Wednesday night: Temperatures will be colder over the weekend and below normal for late November. High temperatures this weekend will be in the 30s with overnight lows in the upper teens in the northern valleys and low to mid 20s in the Columbia Basin. The next shortwave trough for Saturday will be mostly a non- factor for the Inland Northwest. The bulk of the dynamics will track west and south of the region. The limited amount of moisture with this disturbance will also limit precipitation accumulations. Expect light snow over the Northern Blue Mountains of up to around a half of an inch for Saturday night. A potentially wetter shortwave disturbance pushes in for Monday night. This shortwave looks to track more squarely across the forecast area with northwest flow favoring the Cascade crest and southern to central Idaho Panhandle. Snow accumulations over the Cascade crest will up to around 2 inches. The Central Panhandle Mountains will see the potential for 2 to 5 inches and locally up to 6 inches for the mountains south of I- 90. This will be a colder air mass with snow ratios higher at 10/1 to 13/1. The Camas Prairie will also see its first light snow of the season for Monday night into Tuesday with 1 to 3 inches expected. Snow is expected to bring minor impacts for travel, and we may need to have Winter Weather Advisories in place as we get closer to this period early next week. We dry back out for Wednesday and temperatures moderate back to around normal. Thursday through Friday: More uncertainty further out in the extended portion of the forecast period with about 60% of the ensemble guidance having a stronger ridge of high pressure nudging in off of the eastern Pacific. This would steer storms and moisture further north across BC. Then we have the remaining 40% with a flatter ridge and the Polar Jet sagging south across the region. This scenario would be wetter for the upslope favored areas in western flow, i.e. the Cascade crest and Idaho Panhandle. The air mass will continue to moderate even if the wetter scenario plays out, but may start out with more snow for the northern valleys. Could also have some freezing precipitation with warm overrunning air creating a warm wedge. These details will still need working out though next week. /SVH && .AVIATION... 18Z TAFs: Trending towards VFR conditions this morning, if not already VFR. KPUW-KLWS will improve towards 20-23z as drier air scours out low stratus. 10-20% chance of fog forming east of Moses Lake around 08z and advecting west towards KEAT. Confidence too low for prevailing fog in the KMWH or KEAT TAF. .FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Confidence for a transition to VFR conditions is high. Low confidence for fog forming in the Columbia Basin Saturday morning. ----------------------- Confidence descriptors: Low - Less than a 30 percent chance Moderate - 30 to 70 percent chance High - Greater than a 70 percent chance For additional probabilistic information for NWS Spokane airports,please refer to the Aviation Dashboard on our webpage: https:/www.weather.gov/otx/avndashboard && .Preliminary Point Temps/PoPs... Spokane 41 25 36 21 35 25 / 30 0 0 10 0 0 Coeur d`Alene 40 24 35 21 34 25 / 50 0 0 10 0 0 Pullman 41 27 38 26 35 24 / 90 0 0 20 0 0 Lewiston 45 32 41 31 39 28 / 90 0 0 20 0 0 Colville 41 21 37 17 35 19 / 10 0 0 0 0 0 Sandpoint 37 21 32 18 32 22 / 60 0 0 10 0 10 Kellogg 39 23 35 21 35 25 / 90 0 0 10 0 10 Moses Lake 46 28 40 23 38 24 / 20 0 0 0 0 0 Wenatchee 44 32 38 28 39 29 / 10 0 10 10 0 0 Omak 41 27 37 23 37 25 / 0 0 0 0 0 0 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...Winter Weather Advisory in effect through 1 PM PST Friday for Lookout Pass in the Central Panhandle Mountains. && $$

326 FXUS66 KPDT 281709 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 909 AM PST Fri Nov 28 2025 .UPDATED AVIATION...18Z TAFs...VIS of 5SM at DLS will continue through 00Z, CIGs at PDT of 900ft will continue through 21Z before lifting 15kft and ALW will continue to see 200ft CIGs through 22Z. Otherwise, VFR conditions will continue at the remaining TAF sites through the period. Winds will remain light below 5kts with the exception of PSC/BDN seeing 10-11kts. 90 && .PREV DISCUSSION... /issued 421 AM PST Fri Nov 28 2025/ DISCUSSION...Widespread precipitation has enveloped the forecast area as an upper-level trough moves over the region. While the lower elevations have predominantly observed a cold rain, snow levels have dropped to 2-3 kft MSL in Washington with noteworthy snowfall across White and Snoqualmie passes. Though SNOTEL data suggest we are approaching low-end advisory amounts for the Washington Cascades, the bulk of the precipitation will taper off into the early morning hours, so have opted to forgo any winter weather headlines at this point. Elsewhere, snow levels are lowering in the Blue Mountains, and are expected to reach pass levels of 3.5-5 kft MSL through morning. Rain will transition to a rain/snow mix then snow prior to precipitation ending late morning through early afternoon. No winter weather headlines are in effect since snowfall is unlikely to hit our advisory threshold of 6 inches (10 percent chance per NBM guidance). Northwest flow aloft will usher in colder air as we head into the weekend, and ensemble guidance is in reasonably good agreement that a shortwave trough will pass over the forecast area late Saturday into Sunday morning. While this pattern favors snowfall, even for the lowlands, moisture accompanying the system is lacking, so confidence is low (5-25 percent) in observing measurable snowfall for the lower Columbia Basin, low-medium (15-40 percent) along the Blue Mountain foothills, and medium (40-60 percent) for the Blue Mountain basins such as the Grande Ronde and Wallowa valleys. Of note, NBM probabilities of advisory-level snowfall are very low (5 percent or less) area-wide. Drier weather is likely Sunday into Monday, with ensemble NWP then showing another shortwave trough diving down from the northwest between late Monday and Wednesday. Confidence in details with this system is shaky, but this represents another chance of mountain and lowland snow. && .PRELIMINARY POINT TEMPS/POPS... PDT 44 28 40 25 / 100 0 10 30 ALW 44 31 39 27 / 100 0 10 40 PSC 49 28 41 23 / 80 0 10 20 YKM 49 27 41 22 / 50 0 10 10 HRI 47 29 41 25 / 90 0 10 20 ELN 45 25 38 20 / 20 0 10 10 RDM 49 24 46 23 / 20 0 0 20 LGD 44 26 44 25 / 90 0 10 40 GCD 46 27 48 26 / 70 0 0 30 DLS 50 35 45 33 / 90 0 10 30 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. && $$ SHORT TERM...86 LONG TERM....86 AVIATION...90

823 FXUS65 KREV 281903 AFDREV Area Forecast Discussion National Weather Service Reno NV 1103 AM PST Fri Nov 28 2025 .KEY MESSAGES... * Temperatures cooling to near average for the remainder of the holiday weekend and early next week. * Dry conditions prevail into the start of December, except for a few light snow showers near the Oregon border and northwest NV Sunday morning. * Another cold front brings additional cooling, breezy winds, and light showers around the middle of next week. && .DISCUSSION... Although the Sierra ridges are 5-10 degrees cooler compared to yesterday, the inversion that persisted yesterday in valley floors around Reno and west central NV will be weaker, resulting in a better chance of topping 60 degrees this afternoon. This warmup will be short lived as today`s flat ridge retreats to the CA coast tonight and Saturday, leading to a return of valley inversions with highs dipping to the lower-mid 50s across western NV. Then a weak slider-type low drops into the Great Basin on Sunday, leading to an increase in north and northeast breezes (gusts up to 20 mph), stronger Sierra ridge top winds (gusts 40-60 mph) and further cooling to around 50 degrees. Through the past week we have been seeing varied storm tracks, but the most recent consensus keeps the majority of the region dry, except for about a 10-20% chance of stray snow showers/flurries with no meaningful accumulations near the OR border and scraping across northern/eastern Pershing County Sunday morning. For next week, the blocking ridge remains off the west coast, keeping CA/NV in a cooler trough pattern with generally light winds and valley inversions. One exception is a brief warm-up on Tuesday ahead of a weak slider-type low dropping in from the north, with increasing west winds for Sierra ridges. This low is then projected to push a cold front through Tuesday night-Wednesday with increasing north and northeast breezes for lower elevations and stronger ridge top gusts (30-50% chance of 50+ mph). The magnitude of these winds will again be dependent on the eventual track of this low, as the medium range ensembles range from a drier brush-by scenario similar to this weekend`s system, to a more southerly track that would bring increased snow shower chances to the eastern Sierra and parts of western NV. Given the limited available moisture with the inland trajectory of this low, precipitation/snow amounts would remain on the lighter side, with only a 10-20% chance of snowfall exceeding 1" in the eastern Sierra/Tahoe basin and less than 10% chance for any accumulating snow in lower elevations early Wednesday. MJD && .AVIATION... Widespread VFR conditions and light breezes prevail through much of Saturday with high pressure overhead retreating to the west coast. Areas of cirrus cloud cover will limit the potential for patchy FZFG at KTRK to less than 20% for the next couple of mornings. FL100/ridge top winds increase from the west with gusts 35-50 kt Saturday afternoon-night, leading to periods of mountain wave turbulence for the main terminals, then shift to northeast with similar speeds on Sunday. MJD && .REV Watches/Warnings/Advisories... NV...None. CA...None. && $$

524 FXUS66 KSTO 272129 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 129 PM PST Thu Nov 27 2025 .KEY MESSAGES... - Dry conditions and periods of morning Valley and adjacent foothills fog continue late week into the weekend - Seasonable temperatures and dry weather favored for Thanksgiving Day - Decreasing chances for precipitation but periodically breezy north to east winds expected late weekend into next week && .DISCUSSION... ...Today - Friday... Current GOES-West imagery shows a broad stratus deck enveloping the Delta, Valley, and adjacent lower foothills this afternoon. Any lingering patchy fog and reduced visibilities will continue to improve through the remainder of the day, with additional dense fog development anticipated this evening into Friday morning. Probabilities of visibilities less than a half-mile currently sit around 50 to 70 percent throughout the Delta, Valley, and adjacent foothills locations. Aside from periodic fog development, cool and dry weather are expected to persist through the end of the week as well. ...This Weekend - Next Week... While a slight chance for isolated mountain showers remains possible late Saturday into Sunday, predominantly dry weather is expected to continue this weekend into early next week. Breezy north to east winds will be possible Sunday into Monday as well, although strongest wind gusts up to 35 mph are expected along the Sierra at this time. With a more persistent offshore wind pattern setting up late weekend into next week, fog development is expected to be lesser relative to this past week. Otherwise, seasonable temperatures look to persist. Ensemble guidance then indicates some potential for a trough retrograding toward the west coast around the middle of the week. While uncertainty remains high at this time, potential for breezier north to east winds and another slight chance for mountain showers will be possible. && .AVIATION... Areas of MVFR to IFR conditions linger across the Central Valley until around 23z Thursday, then MVFR to VFR conditions expected until near 06z Friday before IFR to LIFR conditions return to the Delta, Sacramento Valley, and northern San Joaquin Valleys into 18z Friday. MVFR and IFR conditions then until 23z Friday. Light and variable winds generally less than 12 kts across interior NorCal for the next 24 hours. && .STO WATCHES/WARNINGS/ADVISORIES... Dense Fog Advisory from 10 PM this evening to 11 AM PST Friday for Carquinez Strait and Delta-Central Sacramento Valley- Northern Sacramento Valley-Northern San Joaquin Valley-Southern Sacramento Valley. && $$

951 FXUS65 KMSO 280753 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 1253 AM MST Fri Nov 28 2025 .DISCUSSION... KEY MESSAGES: - A strong cold front moves north to south across western Montana and central Idaho today causing widespread winter weather. - Low confidence, but north to south snow bands are possible late this afternoon and evening, especially around Missoula. - The coldest temperatures of the season so far expected this weekend. - Another round of snow Monday night through Wednesday morning will cause some minor impacts to travel. - Overall, the weather pattern will remain active through the week. Last night a cold front was stalled out along the Continental Divide and the Canadian border. A cutoff low is coming in from the west and rejoining the main storm track over our region early this morning just as a fast moving trough out of the northwest comes into our region. The merger of these two systems is occurring this morning. The cutoff low from the west is bringing most of the moisture with the trough from the northwest bringing lots of lift and a very cold front at the surface. The confluence of these two systems will focus the worst weather along the Continental Divide, where we currently have winter storm warnings out. The combination of plenty of moisture and temperatures just above freezing dropping into the mid 20s with the front makes icing on roads with the front a big concern. Otherwise, snow amounts forecast in the valleys of western Montana are modest, though many mountain locations may pick up near a foot of snow. Heavier snow amounts today from 6-8 inches will affect Lookout, Lolo, Lost Trail, MacDonald, and Marias Passes. Homestake pass will receive less snow, but it`s proximity to cold air mass east of the Continental Divide is concern for icing along I-90. A building ridge this evening will cause a descending dry, stable layer this afternoon. This is a good pattern for snow bands to become established in the afternoon and evening, and models frequently miss it. The north winds below the stable layer in this pattern have, in the past, interacted with the mountains to cause persistent snow showers over Missoula. This is a finicky pattern that is NOT handled by models well, if at all. Confidence is low, but snow may last much longer into the evening here than currently forecast. And if it does, it will most likely be in a narrow band from north to south maybe 5-miles wide. Behind the trough on Saturday a very dry northwest flow ushers in a cold air mass. The combination of recent snow, a cold air mass, and a very dry air mass will cause strong nighttime cooling with most of western Montana dropping into the low single digits Saturday morning. Sunday morning will be similarly cold. Northwest flow remains the pattern for the rest of the week with a trough moving through every few days. That will keep the snow coming in small doses, as none of these shortwave look as moist as the today`s front. && .AVIATION...A cutoff low from the west rejoining the jet stream is merging with a fast moving trough from the northwest over the region this morning. That will cause low ceilings and moderate snow at times. With the passing cold front today, we expect that snow will accumulate at all area terminals where it occurs this afternoon and evening. That includes KGPI, KMSO, KHRF, and KBTM. A descending dry, stable layer this evening with light north flow may cause some light snow showers to persist longer than models suggest, especially for terminals KMSO and KHRF. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...Winter Weather Advisory until 5 PM MST this afternoon for Bitterroot/Sapphire Mountains...Flathead/Mission Valleys... Kootenai/Cabinet Region...Lower Clark Fork Region... Missoula/Bitterroot Valleys. Winter Storm Warning until 2 PM MST this afternoon for West Glacier Region. Winter Storm Warning until 6 PM MST this evening for Butte/Blackfoot Region...Potomac/Seeley Lake Region. ID...Winter Weather Advisory until 4 PM PST Friday for Southern Clearwater Mountains. && $$

164 FXUS65 KBOI 281658 AFDBOI Area Forecast Discussion National Weather Service Boise ID 958 AM MST Fri Nov 28 2025 .DISCUSSION...A cold front will bring a brief band of precipitation through the area with snow levels around 4000-5000` today. This band is situated from Ontario to McCall this and will move southeast this morning before weakening by the time it gets to the Magic Valley. The cold front will clean out the inversion and mix out the fog in the valleys by this afternoon, with breezy west-northwest winds. Strongest winds will be in the Magic Valley with gusts to 35-40 mph this afternoon. Fog is forecast to redevelop in the valleys tonight into Saturday morning, with the best chance coming along the foothills in the Boise metro, to the Magic Valley, Baker Valley and around Burns OR. First snow of the season possible for many valleys locations on Sunday morning. Forecast has been updated to increase precipitation chances this morning. Sunday morning will need higher chance so precipitation and will be addressed in the afternoon forecast. && .AVIATION...VLIFR-IFR in low stratus/fog this morning, mainly in the Treasure Valley and mtn valleys. Fog is lifting to low stratus, with conditions improving inside and behind a band of rain/snow moving NW to SE. Some freezing precip has been observed out of the band near KONO. The band is following a cold front dropping snow levels to 4-5 kft MSL. Slight clearing this evening before fog/stratus returns tonight. Surface winds: variable less than 10 kt, becoming NW 10-25 kt with gusts 20-35 kt this afternoon, strongest from KMUO to KJER/KTWF. Winds aloft at 10kft MSL: NW 15-30 kt. KBOI...LIFR/VLIFR fog expected to lift to stratus as frontal showers arrive just after 17Z. The light rain will last for a few hours before post-frontal winds arrive and improve conditions to VFR. Surface winds light and variable, then NW 7-15 kt with gusts 18-25 kt with the front this afternoon. Weekend Outlook...A 30-50% chance of snow Saturday night into Sunday morning, with snow levels on valley floors. MVFR to LIFR in snow with mountain obscuration. Surface winds: E-SE 5-15 kt Saturday, becoming W-NW 5-15 kt with afternoon gusts 15-25 kt Sunday. && .PREV DISCUSSION... SHORT TERM...Today through Sunday night...Dense Fog Advisory for the Treasure and western Magic Valleys looks marginal early this morning, but hi-res models and MOS products continue to support it until 9 AM MST. After that a Pacific cold front will generate enough mixing and wind to quickly end the fog. Synoptic models have only minimal QPF with the incoming front, but hi- res models are wetter and agree with each other so we favor that forecast. Post-frontal northwest winds will increase to 15-25 mph in the Snake Basin this afternoon, with gusts to 35 mph from Mountain Home eastward, not strong enough for a Wind Advisory. Clearing, calming, and colder tonight and Saturday morning behind the exiting cold front. Increasing clouds from the north later Saturday as the next short wave trough approaches from the BC coast. With cold air still in place, this trough should supply enough moisture to generate light snow in most of our CWA Saturday night. The Treasure Valley should get a dusting. Little if any impact on travel is expected, though. LONG TERM...Monday through Friday...After a ridge briefly builds overhead on Monday, an upper level trough will move across the area from northwest to southeast Monday night into Tuesday. This trajectory will contain limited moisture, and only light precipitation amounts are expected. Snow levels will be around 2500-3500 feet, supporting potential for a rain/snow mix in the lower valleys. However, there is only a 10% chance of accumulating snow in the Treasure Valley. Winds will be breezy on Tuesday as the system moves through, and temperatures will be near normal. An amplified pattern featuring a ridge in the eastern Pacific and trough in the central U.S. will bring cool and mostly dry northwesterly flow over our area Wednesday and Thursday. This will keep temperatures near normal with only a slight (15-25%) chance of snow in the central Idaho mountains. By Friday, forecast confidence decreases with significant disagreement in the ensembles about the pattern moving forward. The ridge is expected to flatten, but how much is uncertain. If zonal flow can become established, models indicate a much wetter and mild pattern returning to the area, but if the ridge hangs on, mostly dry conditions would continue. This uncertainty results in a 20-50% chance of rain and snow on Friday, with further adjustments likely as models come into better agreement. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...None. OR...None. && $$ www.weather.gov/Boise Interact with us via social media: www.facebook.com/NWSBoise www.x.com/NWSBoise DISCUSSION...KA AVIATION.....JM SHORT TERM...LC LONG TERM....ST

959 FXUS65 KLKN 281046 AFDLKN Area Forecast Discussion National Weather Service Elko NV 246 AM PST Fri Nov 28 2025 .KEY MESSAGES... Updated at 221 AM PST Fri Nov 28 2025 * A storm system clips Northeastern NV Saturday night into Sunday, bringing a 25% chance of valley snow and a 70% chance of mountain snow to Elko County * Snowfall amounts for Elko County Saturday night into Sunday range from a trace up to around an inch on roadways, heaviest amounts north of Interstate 80 * A second storm system is expected Tuesday into Wednesday, with snowfall mainly confined to mountains of Elko County && .UPDATE... Issued at 221 AM PST Fri Nov 28 2025 Current forecast is tracking well; only minor adjustments to snowfall amounts for Saturday night into Sunday. && .DISCUSSION... (This afternoon through next Thursday) WEATHER PATTERN OVERVIEW: High temperatures in Northern Nevada will range from 40s to low 50s today, while Central Nevada temperatures remain in the mid 50s to low 60s. Temperatures continue to drop for the weekend, with highs in the 40s for Saturday and upper 30s and 40s for Sunday. A strengthening trough is expected to clip the forecast area Saturday night and Sunday, which will enforce the colder air and could spark a few snow showers in Elko county and mountain ranges in White Pine county. Accumulations currently look like a trace at low elevations and up to four inches in the mountains, but there is still plenty of time for this system to change. Temperatures rebound a few degrees for Monday and Tuesday even as a second trough crosses the area on Tuesday. Long range model guidance indicates another cold and dry system with only light precipitation but there is still a lot of model disagreement and this system will need to be monitored as it develops. FORECAST CONFIDENCE & DEVIATIONS: High confidence in cooler temperatures for the weekend. Moderate confidence in light precipitation Saturday night and Sunday. Moderate confidence in a trough passage late next week but low confidence in local impacts. && .AVIATION...VFR conditions are expected at all sites through the next 24 hours. A dry frontal boundary moves across Northeastern Nevada today, with wind gusts of 15 to 25 knots expected this afternoon at KBAM, KEKO, KENV and KELY. && .LKN Watches/Warnings/Advisories... None. && $$ DISCUSSION...96 AVIATION...96