944 FXUS66 KSEW 242307 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 307 PM PST Tue Feb 24 2026 .SYNOPSIS... A weak ridge overhead will maintain mostly dry conditions with a few showers across the southeast portions of the area. The next disturbance will cross the area on Wednesday, bringing additional snow to the mountains and rain to the lowlands. After some shower linger later in the week, especially across the north, a trend toward cool and drier conditions emerge over the weekend and continue into the first half of next week. && .SHORT TERM /TODAY THROUGH THURSDAY NIGHT/... Western Washington remains on the fringe of an elongated frontal system spanning down into Oregon. The southeastern portions of the area are blanketed by a high cloud deck and perhaps a few light passing showers, though the bulk of the precip remains south of Lewis County. This system will weaken and move to the southeast tonight. Elsewhere, much of the northwestern portions of the area sit under clear skies, except for some pesky low clouds through the Strait of Georgia and the Strait of Juan de Fuca coastline. With northerly winds, it will take a while to clear out there. High temperatures across the area today will be in the upper 40s to near 50. Low temperatures tonight in the mid 30s to around 40. Another weather system will being to move in early Wednesday morning and persist across the area through early Friday. While most of the precipitation will be focused through British Columbia, the area will be on the southern fringe of this system. The majority of the precipitation will be focused on the northern Olympic Peninsula/northern Pacific coast, and the north Cascades, primarily north of Stevens Pass. Through Friday morning, up to 1 ft of snow will be possible mainly in the higher-elevation back country and at Mt. Baker Ski Area. At Stevens Pass, 4-6" is the expected range. With snow levels rising about 3500 ft on Thursday, Snoqualmie Pass will allow for a period of rain, which will limit expected accumulations and impacts there. Wednesday and Thursday will be similar in terms of the temperatures and the winds. Highs will in the upper 40s to low 50s. Lows in the mid 30s to low 40s. Winds will be breezy, with speeds 15 to 25 mph with gusts 25 to 35 mph possible. Winds will begin to taper off Thursday afternoon. 62 && .LONG TERM /FRIDAY THROUGH TUESDAY/... Ensemble guidance remains in good agreement suggesting another round of high pressure building over the region as an upper low cuts off over California late this week into the weekend, promoting a trend toward drier and cooler weather as the air mass dries out and skies clear. Most likely temperatures drop to around the freezing mark in the city centers and into the upper 20s elsewhere. && .AVIATION... West to northwest flow aloft with weak troughing aloft. Clouds continue to blanket the southeastern portions of the area. These clouds will continue to lift and depart to the southeast this afternoon into tonight. Clouds will begin to fill in overnight across the area as the next system moves in. Precipitation will be confined to to the mountains, but this will bring in enough moisture for MVFR cigs to develop across most of the area. Models are beginning to hint that even IFR cigs or areas of patchy fog may also be possible going into the hours near sunrise Wednesday morning. Improvement to VFR will be slow through the morning but a return is expected by Wednesday afternoon. Northerly winds will ease tonight before switching to light southerly overnight, increasing up to 8 to 15 kt by Wednesday morning. Gusts up to 20 to 25 kt will be possible. KSEA...VFR conditions will prevail through late this evening. Increased moisture from an incoming weather system will allow for ceilings to redevelop and lower. The current most likely scenario is a solid MVFR deck, but if we remain scattered/broken overnight that may introduce areas of lower cigs and isolated areas of fog. Probabilities for IFR cigs hover at around 10-15% between 11-17Z Wed and 20-30% for MVFR. A slow improvement to VFR is expected through the late morning Wednesday. North winds will ease and switch to south late this evening. Winds will increase through the morning, up to 8-15 kt with gusts up to 20 kt by 18-21Z Wed. && .MARINE... Marine conditions have largely subsided today with weak high pressure temporarily over the waters. Winds likely increase through the Strait of Juan de Fuca tonight through Wednesday with low-end advisory speeds developing overnight. Expect a possible area to expand later Wednesday across the northern coastal waters as well as the Strait into Thursday as a stronger disturbance passes across southern B.C. Seas will also build near to 10 ft with a mix of a larger westerly swell and a smaller southerly wave group. && .HYDROLOGY... No river flooding is expected during the next seven days. && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...Small Craft Advisory from 9 PM this evening to 4 PM PST Wednesday for Central U.S. Waters Strait Of Juan De Fuca- East Entrance U.S. Waters Strait Of Juan De Fuca. && $$

161 FXUS66 KPQR 242229 AFDPQR Area Forecast Discussion National Weather Service Portland OR 229 PM PST Tue Feb 24 2026 .SYNOPSIS...Scattered showers continue across the region today, becoming isolated and limited mainly to far northern Oregon and SW Washington Wednesday through Friday. Rain chances then shift to central Oregon Saturday into Sunday as a weather system moving into northern California brushes central Oregon, but confidence is low in details. Dry weather then returns early next week. Conditions likely remain within typical climatological normals through the forecast period with no significant weather impacts on the horizon. && .DISCUSSION...Tuesday afternoon through Monday...The atmospheric river that impacted NW Oregon and SW Washington through last night shifted into S Oregon and N California this morning as the surface front shifted just south of Lane County, leaving scattered showers across the area in the wake of the front. Satellite imagery Tuesday afternoon shows the upper trough that funneled the atmospheric river into the PacNW has pinched off into a cut off low in the eastern Pacific west of California, and ensemble guidance indicates this low will retrograde west before pushing back east towards the West Coast later this week. In the meantime, scattered showers continue across the region through Wednesday as a weak shortwave moves from the north through Washington and Oregon. Snow levels will lower tonight with the incoming shortwave, falling to 2500-3500 ft north of Lane County and 3500-4500 ft in Lane County by early Wednesday morning. However, with showers being scattered and limited in precipitation, not much snow is expected over the Cascades, maybe up to 2 inches in the early morning hours Wednesday at Willamette Pass. Ensemble guidance indicates flow becomes zonal Thursday into Friday through the weekend. Low precipitation chances continue across the area through Friday morning, mainly limited to the north Oregon coast and Coast Range north of Lincoln City, far northern Oregon Cascades, and SW Washington. Limited accumulation is expected. Colder air is expected to be funneled into the PacNW behind Wednesday`s shortwave. This along with clearing skies across the majority of the interior lowlands will lead to colder overnight temperatures Wednesday night with a 60-90% chance of low temperatures Thursday morning falling below freezing in the central and southern Willamette Valley and a 40-60% chance for the SW Washington lowlands. However, if skies don`t clear as expected, locations with remaining cloud cover will not cool quite as much. There`s an off chance (~5-10%) an isolated shower wanders off the coast range or Willapa Hills into the southwest Washington lowlands during this period, which would have the potential to be a rain/snow mix if temperatures do lower near or below freezing. However, a lot of variables would have to perfectly align for this to occur. So while the forecast may introduce a mention of a slight chance (15%) for rain/snow late Wednesday night into Thursday morning, it is extremely unlikely you`ll see any impacts below 1500-2000ft - in fact you`ll be lucky to see anything at all. Mostly dry conditions return Friday afternoon through Saturday with inland high temperatures in the 50s and low temperatures in the mid 30s. Uncertainty increases in the forecast late Saturday into late Sunday. Ensemble guidance is in high agreement that the closed low remnant from the current longwave trough is slated to move inland along the California during this timeframe. However, uncertainty remains in how far north along the California coast this will occur. A track further north would yield better chances for precipitation. Latest forecasts indicate precipitation chances limited to south of Highway 20 in Oregon. Additionally, probabilities for overnight temperatures falling below freezing in the interior lowlands remain low to moderate, mainly around 30-60%, due to the uncertainty of this closed low. A bit more of a northern track will likely keep low temperatures above freezing due to cloud cover, but a more southern track could keep the area from being impacted by the closed low and allow for the jet stream to dip into Oregon and bring colder temperatures. Either way, the closed low is expected to move east by Monday, leading to increasing confidence of dry weather later Monday into Tuesday. -03/99 && .AVIATION...A frontal system associated with an atmospheric river remains stalled over the region this afternoon with very little movement. Because it has yet to shift southward as models suggested, have seen a trend towards more widespread IFR conditions with pockets of LIFR in passing rain showers. VIS has become much lower than previously forecast with visibility less than 2 SM throughout the area. Based on how this pattern is progressing (or a lack thereof), will see minimal change over the next 12 hours. While models want to attempt to clear or lift CIGs overnight, the amount of moisture in the atmosphere combined with a lack of mixing and light northerly winds, it will be quite difficult to do. In fact, based on the overall pattern beginning to lean towards a much more degraded forecast than previously thought. However, there remains around a 40% chance that skies do lift. If they do, and enough cooling occurs, cannot rule out dense fog. KPDX AND APPROACHES...IFR CIGs have dominated the region and based on area PIREPs, the cloud deck appears to be quite dense. With this being the case, unless significantly drier air moves in we will see limited improvement. However, the drier airmass is sitting just to the north so as the front shifts southward, that air should move in. If this does occur, and skies improve, there will be a trend towards dense fog development due to encouraged diurnal cooling. Based on ensemble models, there is around a 30% chance of LIFR VIS, and a 65% chance of at least MVFR VIS after 10Z Wed. Based on the current observations, there is a stronger lean towards MVFR VIS with IFR CIG overnight. Confidence remains low at this time.-27 && .MARINE...Seas and winds have eased as the main frontal band has shifted southward. Northerly winds persist around 8-13 kt with isolated gusts up to 20 kt. These conditions have not been widespread and have slowly eased through the afternoon. Seas too have fallen below 8 ft for most buoys with most sitting in the 5-7 ft at 10 second range. These conditions will persist through Friday. Local guidance shows a mixed bag of swells with a primary northwesterly swell and a southerly fresh swell that then transitions into a true secondary swell. While a complicated swell organization, will see widespread seas rise to or above 10 ft but there is a low probability of seas exceeding that 10 ft mark. -27 && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...None. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

235 FXUS66 KMFR 242230 AFDMFR Area Forecast Discussion National Weather Service Medford OR 230 PM PST Tue Feb 24 2026 .DISCUSSION...The main belt of precipitation within this Pineapple Express is slowly working its way south, with the back end of the steady rain currently lying roughly along a line from Crater Lake to Cave Junction. Areas to the west and north of this line have transitioned to more showery, lighter precipitation, while steady moderate to heavy rain continues to the south and east. There have been some impressive rainfall totals over the last 24 hours, with Medford now over 1.25 inches since yesterday, areas in the southern Illinois Valley near O`brien and across western Siskiyou County receiving between 2 and 4 inches, and areas along the coast receiving 4 to 5 inches. As rain is ongoing, overall storm totals are not yet finalized, but already it looks as if several stations will be at or near daily record rainfall amounts. Several flood products are in effect, although some have been allowed to expire. First, a Flood Warning has been issued for the Coquille River at Coquille, which as of this writing is just below flood stage, and expected to hit minor flood shortly. A Flood Watch remains in effect for the South Fork Coquille at Myrtle Point, which is expected to remain below flood stage, but may get very close. An areal Flood Watch remains in effect for Curry, Josephine, Jackson, and western/central Siskiyou counties, where rain continues at this time, but has been expired for Coos and Douglas as the rain has moved out of those area and no areal or small stream flooding has been reported. Creeks and streams are still expected to run high for the next 24 hours or so as runoff continues to work its way through the system. This main belt of moisture pushes off to the south later today, with showers then continuing through tonight and into Wednesday morning as onshore flow persists, but any additional amounts by this time will be light. Snow levels that have peaked as high as 9000 feet last night and today will lower to about 3000 to 4000 ft Wednesday as the front passes and showers taper off, so some light snow is possible at elevation, but no significant winter impacts are expected. Upper level ridging returns to the area for the latter half of the week, with dry and warmer conditions expected Thursday and Friday, and potentially into Saturday. Area valleys, however, will likely see strong inversions with fog and low clouds overnight and into the mornings, especially west of the Cascades. Models are continuing to show a warm front passing through the area Saturday, with widespread overrunning leading to broad areas of light precipitation Saturday into Sunday as the surface low approaches the area but fizzles out. Any rainfall amounts from this weak system will be very light, and with snow levels rising again to well above 6000 or even 7000 feet, winter impacts are not expected. High pressure then returns in full force for early next week, with warming temperatures and dry conditions. && .AVIATION...24/18Z TAFS...Rainfall from an atmospheric river continues this morning over a large portion of northern California and southern Oregon. LIFR ceilings remain along the coast, even as rain has eased over North Bend. Inland areas are generally seeing VFR to MVFR ceilings, although continuing showers will bring locally lower ceilings and visibilities. Widespread rainfall will decrease this afternoon and evening, with scattered showers possible into Wednesday morning. Coastal areas and valleys are expected to see MVFR to IFR ceilings overnight, possibly through the end of the TAF period for some areas. Patchy fog may develop as well, with expectations for more widespread fog minimal given the persisting ceilings. If ceilings break for area valleys and low-lying areas, fog chances for early Wednesday morning may increase. -TAD && .MARINE...Updated 200 PM PST Tuesday, February 24, 2026...Southerly swell continues to ease this evening but steep seas continue in all waters through tonight. A brief period of below advisory seas is forecast from early Wednesday morning into Wednesday evening, when northerly winds will build steep seas south of Cape Blanco into early Thursday morning. Below advisory seas are expected from Thursday morning into Friday afternoon. On Friday, a combination of increasing swell and gusty winds (both northerly) looks to develop in area waters. This would build some level of unsettled seas, generally steep but with areas of very steep seas possible. These unsettled conditions could last into the weekend. -TAD && .MFR WATCHES/WARNINGS/ADVISORIES... OR...Flood Watch through Wednesday evening for ORZ022-024-026. CA...Flood Watch through Wednesday evening for CAZ080-081. PACIFIC COASTAL WATERS...Small Craft Advisory until 10 PM PST this evening for PZZ350-356-370-376. && $$

468 FXUS66 KEKA 242211 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 211 PM PST Tue Feb 24 2026 .SYNOPSIS...A frontal system will continue to produce moderate to heavy rain and a threat for minor flooding through this evening. Showers tonight are forecast to diminish on Wednesday. && .KEY MESSAGES... * Increased risk for urban and small stream flooding through this evening as a moderate atmospheric river brings widespread moderate to heavy rain. * The Russian River at Hopland is forecast to reach or exceed flood stage this afternoon. The Eel River at Fernbridge is forecast to reach/exceed flood stage this evening. * Wet and unsettled weather possible this weekend. && .DISCUSSION...A strong atmospheric river storm impacting NW California will continue through through late this afternoon and early evening with moderate to heavy rainfall . Satellite imagery depicts a slow-moving frontal boundary coupled with subtropical moisture streaming across the area this today. Rain amounts over the last 24 hours (12PM Monday to 12PM Tuesday) ranged from 2 to 4 inches from Del Norte County to Northern Mendocino County, with localized higher amounts up to 7.5 inches over the west-southwest windward facing terrain in southwest Humboldt, southern Trinity and northern Mendocino counties. Southern Mendocino and Lake counties saw 0.5 to 1.5 inches. Rainfall intensity will continue to increase for Mendocino and Lake counties this afternoon as the steady stream of subtropical moisture proceeds southward along the surface front. Urban and small stream flooding has been reported across portions of Humboldt and northern Mendocino counties. Flood Advisory remain in effect for Del Norte, Humboldt, southern Trinity and northern Mendocino counties. Widespread moderate to heavy rain will likely decrease to showers this evening. A flood watch remains in effect until 10 PM this evening as it will take at least that long for water to drain and rivers to recede. Additional amounts of 0.5 to 1.5 inches are expected through early Wednesday morning across much of the region, with the heaviest rain rates focused over the west- southwest windward facing terrain. Forecast from the river forecast center has all stages below minor flood stage, with the following exceptions: * Russian River at Hopland: forecast to reach minor flood stage (15.0 feet) this afternoon. * Eel River at Fernbridge: forecast to reach minor flood stage (20.0 feet) this evening. * There is a low (10-20%) chance for South Fork Eel River at Miranda to get close or exceed minor flood stage. Conditions will begin to settle down on Wednesday. Considerable low level moisture will linger in the wake of the front and with warm air aloft, expect considerable low cloud cover and fog in the interior valleys and along the coast. Otherwise, we are looking dry until Friday when the stalled out upper low over the central Pacific edges closer to the coast. Timing and location of trough passage remains uncertain. Moisture transport under 250kg/m/s is forecast while PWATS increase. It not looking like any major precip at this time. There is a subtle hint for some convection or thunder as a mid level speed max noses toward the North Coast on Saturday in advance of the 500mb cold core. Surface temperatures should remain mild and above normal as we head into the last week of February and the first few days of March. /ZVS&DB && .AVIATION...18Z TAFs...Rainfall rates will continue transitioning lighter, with lingering light showers Tuesday night. The downsloping and warming southeasterly winds ended with a shift to south- southwesterly. CIGs and VIS were able to lower to the IFR to LIFR levels response. As winds turn lighter to calm overnight, the chances for LIFR conditions, including fog formation, will remain. There is a broad 60 70% chance for continued CIGs below 1000 ft AGL and 40 to 50% for ceilings below 500 ft AGL. Probabilities for LIFR lessen to 30-40% after 7Z Wednesday when the front finally pushes through. JJW && .MARINE...Southerly winds and steep seas continue to subside through the afternoon hours as a frontal system passes through. A small, mid period southwest swell is also moving in today. Winds will turn light to gentle overnight. There will be a brief surge of northerly winds Wednesday through Thursday morning, mainly over the outer waters beyond 10 nm and around Cape Mendocino. Speeds will remain below 20 kts with short period seas of 4 to 6 ft through Thursday morning. Northerly winds increase slightly stronger Friday afternoon. An area of low pressure approached Sunday with likely little impacts unless it takes a more northern track. The pressure gradient will increase behind it early next week with strengthening northerlies. There is currently a 45% chance for some gale strength gusts Monday with the northerlies. JJW && .HYDROLOGY...Additional moderate to heavy rainfall with a moderately-strong atmospheric river is forecast to continue impacting NW California through late this afternoon and early evening. More minor flooding impacts are likely late this afternoon mainly across Humboldt and Mendocino counties due to additional rain falling in a short amount of time. Soils are are about 55-70% saturated and streamflow are running higher. Some impacts include urban and small stream flooding. In addition, small rock and mud slides are possible in areas of steep terrain that are already saturated. The Russian River at Hopland is still forecast to reach minor flood stage (15.0 feet) this afternoon. The Eel River at Fernbridge: forecast to reach minor flood stage (20.0 feet) this evening. There is a low (10-20%) chance for South Fork Eel River at Miranda to get close or exceed minor flood stage. The reminder of the main stem rivers are expected to remain below minor flood stage through this event. Our prolonged dry spells this wet season and low flows will reduce the threat for major or severe flooding. /ZVS && .EKA WATCHES/WARNINGS/ADVISORIES... CA... Flood Watch until 10 PM PST this evening for CAZ101>115. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 4 PM PST this afternoon for PZZ450-455-470-475. && $$ 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

159 FXUS66 KMTR 242304 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 304 PM PST Tue Feb 24 2026 ...New AVIATION, MARINE... .KEY MESSAGES... Updated at 245 PM PST Tue Feb 24 2026 - Periods of rain this evening ending overnight - Mild and dry conditions Wednesday through Saturday && .SHORT TERM... Issued at 241 PM PST Tue Feb 24 2026 (This evening through Wednesday) The main rain band has been pointed at far northern Sonoma county and points northward into Mendocino and Humboldt counties for much of the day. Heavy rain has been confined to the Sonoma hills with 1-2 inch rain amounts so far with 0.25-0.50 for the Sonoma county valleys. South of Santa Rosa rain amounts have been a tenth or less down through Marin county and towards the Golden Gate. Little or no rain so far today south of San Francisco with amounts generally a trace to a few hundredths. Even with extensive cloud cover the airmass is warm and mild as temperatures have warmed into the lower 70s for the Central Coast with widespread 60s across the Bay Area. Where rain is falling, in places like Santa Rosa we are seeing readings in the upper 50s. The short term models are adamant that the front will begin to shift southward over the next several hours with increasing rain coverage for the Bay Area evening commute. However, as the front shifts southward it will lose upper support and the front will weaken with only light rain forecast south of San Francisco this evening and little or no rain for the Santa Clara Valley and interior Central Coast. The juicy airmass and light winds could lead to some patchy valley fog formation in the valleys overnight and for the start of the Weds morning commute. Temps will remain mild overnight in the 50s for most locations. High pressure rebuilds on Weds with highs well into the 60s and lower 70s for a springlike feel to the day. && .LONG TERM... Issued at 241 PM PST Tue Feb 24 2026 (Wednesday night through next Monday) Building ridge will keep overnight lows mild for late February in the 50s with patchy valley fog formation. Daytime highs Thursday through Saturday will remain unseasonably mild with highs upper 60s to mid 70s for most of the Bay Area and even close to 80 for interior Monterey county. Next forecast change of note will occur Sunday and Monday with high confidence for a cooling trend back closer to normal readings. This will be in response to an upper low passing over NorCal in the vicnity of Cape Mendocino. While some light rain showers are possible, confidence is low on any meaningful precip with the main impact to bring a cooling trend back to more normal temperatures. Long range trend for the first week of March doesnt show signs of any moderate to strong storms but the pattern remains somewhat active/progressive with no strong ridging either. && .AVIATION... (00Z TAFS) Issued at 257 PM PST Tue Feb 24 2026 Light rain continues to affect the north bay with the main rain band arriving into the afternoon and spreading south into the late afternoon and early evening. Expect building mid-level clouds as the rain pushes south, and some spotty low clouds, specifically at STS. Southerly winds build just ahead of the rain band, becoming breezy to gusty around the SF Bay. The front itself weakens as it pushes south, with little to no rain reaching the Monterey Bay. Winds become light into the night and cloud cover erodes into Wednesday. Vicinity of SFO...Light showers are approaching with mostly mid to high level clouds. Winds become breezier and more southerly into the evening as scattered showers arrive. Moderate rains build arrive along the main rain band this evening. Scattered showers linger in the wake of the main rain band into the night as winds reduce. Expect lighter winds into early Wednesday with cloud cover eroding into the midday. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...Higher-level cloud cover builds through the day with moderate northwest winds building into the evening. Slight chances for non- impactful showers arrive into the evening along with scattered mid to low-level clouds. && .MARINE... (Tonight through next Sunday) Issued at 257 PM PST Tue Feb 24 2026 Light to moderate rain continues to spread across the northern waters with breezy to locally gusty winds. Rain chances peak in the evening and early night, with showers becoming scattered in the late night. Expect winds to reduce into the evening and overnight hours, leading to mostly light winds into Wednesday. Seas will ease into the mid week but slowly rebuild in the late week. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...Small Craft Advisory until 9 PM PST this evening for Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM-Pt Reyes to Pigeon Pt 0-10 nm. && $$ SHORT TERM...RW LONG TERM....RW AVIATION...Murdock MARINE...Murdock 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

021 FXUS66 KOTX 242249 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 249 PM PST Tue Feb 24 2026 .KEY MESSAGES... - Light to moderate snow will impact the Central Panhandle Mountains of Idaho. Mix of rain and snow in the Palouse and Camas Prairie overnight into Wednesday morning. - Breezy to windy conditions Wednesday through Friday. - Persistent light snow showers on the Cascade Passes Wednesday through Friday and at times over North Idaho. && .SYNOPSIS... Light rain and snow will impact the area through Wednesday morning. Breezy to gusty winds develop Wednesday through Friday. Much of the region will dry out though snow showers will continue along the Cascade Crest and Idaho Panhandle with winter travel conditions at times. && .DISCUSSION... Tonight-Friday: The rich axis of moisture that was over the region 24 hours ago is sagging south into Oregon and changes are on the way for the Inland NW toward a drier and windier weather pattern. Before getting there, we will be monitoring one last midlevel wave traversing the area tonight. This wave will tap into the moisture axis to our south and bring one more round of light precipitation across southern WA and into the Idaho Panhandle. This will fall as snow in the Central Panhandle Mountains, mix of rain and snow for the lowlands of the Palouse/Camas Prairie, and mainly rain for southern WA. Probabilities are not as high for an inch of snow over the Palouse as they were on Monday night, but HREF is still carrying a 20-40% chance for 1" or more between Moscow and Plummer so would not rule out slushy accumulations for the Wednesday morning commute along sections of US95 and 5-10% chance for US195. Snow amounts for the mountains in southern Shoshone County and Lookout Pass will be on the order of 2-4 inches. Wednesday into Friday, broad northwest flow will develop aloft. The Inland NW will be sandwiched in between a weak subtropical jet across Oregon and stronger polar jet across southwestern Canada. The polar jet will be the more dominant feature with a series of low pressure systems spinning up and tracking through north-central BC, Alberta, and Saskatchewan. This will lead to increasing pressure gradients at the surface over the multi-day period leading to breezy to locally windy conditions. Additionally, despite the jet to the north, 700mb over the NW will be approaching 50kts from the west to northwest and these will be the main concern for our ridgetops. For Wednesday, winds will generally be from the west and southwest with the strongest winds impacting the Waterville Plateau, Columbia Basin, West Plains, Palouse, and foothills of the Blue Mountains. Highest probabilities for gusts of 40-45 mph are fairly isolated to around Alpowa Summit near the Blue Mountains and on the Waterville Plateau. The ridgetops of the Cascades and Idaho Panhandle will also be exposed to stronger wind gusts of 40-50 mph. Winds will increase through the day and remain strong across the ridgetops overnight. We will need to monitor mountain wave activity and potential for isolated gusts ~ 40 mph descending at night on Douglas County and foothills around Wenatchee. The deepest low pressure system comes through Western Canada on Thursday pulling winds more south/southwest vs Wednesday. Thursday looks to be a bit windier region-wide and more impactful for the northern mountains/mountain valleys vs Wednesday. Nearly all ridgetops will be exposed to gusts of 40 mph with locally stronger speeds on the highest peaks. The highest probabilities for lowland wind gusts of 40-45 mph will continue to be on the Waterville Plateau and now shifting into the upper rim of the Columbia Basin along Hwy 2 between Coulee City and Airway Heights. There are very low probabilities for gusts to reach 50 mph but something we will continue to monitor. The European Ensemble indicates anomalous winds for the northern mountain zones of WA and N ID. This aligns where the strongest gradient is occurring and it is likely that these typically sheltered areas rarely receive gusts of 30 mph. That being said, even gusts of this magnitude can lead to isolated tree damage and power outages given the amount of targets (ie. trees) and small branches that can blow around and break. Heading into Friday, the pressure gradients will shift more west to southwest again with the surface low ejecting into the Northern Plains. Another breezy day with widespread gusts of 25-35 mph but low confidence for gusts above 40 mph for the lowlands. The swift westerly flow across the region will lead to persistent snow showers on the windward side of the Cascades and into the Cascade passes and at times, into the rising terrain of North Idaho and far NE WA Selkirks. Snow amounts for Stevens Pass are near 6-8 inches over the 3-day period with brief periods of snowfall rates of half an inch per hour. Snowfall amounts for North Idaho and NE WA are less than 2 inches over the period with no winter weather highlights anticipated. The remainder of the region will be dry with a well pronounced rain shadow in the lee of the Cascades. Saturday-Tuesday: Conditions remain dry with decreasing winds for the weekend as northwest flow remains but the Polar jet weakens. Expecting plenty of sunshine through the weekend. This transitions into shortwave ridging Monday and Tuesday with continued dry conditions and moderate temperatures back into the 40s to lower 50s. /sb && .AVIATION... 18Z TAFS: The snow band has shifted south and exited the PUW/LWS areas. The boundary layer will remain moist through the day across the Columbia Basin into the Spokane/Coeur d`Alene areas and points southward. Improvement of flight conditions is anticipated this afternoon, but low clouds will keep MVFR conditions for KMWH/KGEG/KSFF/KCOE/KPUW/KLWS terminals. A late afternoon shortwave will bring another around of light precipitation to southeast Washington into the southern and central Idaho Panhandle impacting KGEG/KSFF/KCOE/KPUW/KLWS. Snow mixed in with rain is expected for KGEG/KCOE/KPUW with precipitation this evening. A saturated boundary will lead overnight fog and IFR stratus developing through the overnight hours and early Tuesday morning. VFR condtions for MWH/EAT. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Low confidence in the visibility and ceiling forecast along the northern fringe of the stratiform precipitation for KMWH/KGEG/KSFF/KCOE today. Moderate confidence on the return of IFR conditions overnight into Tuesday morning. /JDC ----------------------- 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 30 42 30 44 32 48 / 70 0 0 0 0 0 Coeur d`Alene 31 41 30 44 32 46 / 70 30 20 10 10 20 Pullman 32 39 28 43 31 46 / 90 30 0 0 0 10 Lewiston 33 48 32 51 35 53 / 90 20 0 0 0 0 Colville 26 42 30 43 31 46 / 10 10 10 20 20 20 Sandpoint 30 39 31 39 32 43 / 40 40 50 50 40 50 Kellogg 31 37 30 40 32 42 / 90 50 40 20 20 40 Moses Lake 28 49 30 51 33 53 / 30 0 0 0 0 0 Wenatchee 30 45 33 48 35 49 / 30 0 10 10 10 10 Omak 28 44 33 47 33 49 / 0 0 10 10 0 0 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$

970 FXUS66 KPDT 242153 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 153 PM PST Tue Feb 24 2026 .DISCUSSION...A stationary front draped across the PacNW in combination with a moist southwest flow aloft continues to bring showery precipitation across the forecast area this early afternoon. Satellite and radar imagery over the past few hours have shown an Atmospheric River beginning to shift southeast, with the main band of steady precip focused over southern portions of Oregon. Meanwhile, more showery light precip bands are developing along portions of the Cascade crest, the Lower Columbia Basin and adjacent valleys/foothills, and the northern Blue mountains. Currently, only light snow showers are developing along the WA Cascade Crest, while light rain and high mtn peak snow showers are developing along the OR Cascade crest and eastern mountains, where snow levels are generally over 6kft. Today through Wednesday Afternoon: Showery precipitation will continue across the forecast area through Wednesday morning, shifting from north to south through the overnight hours. This is due to a mostly offshore trough closing off into a low, with the inland portion (over BC), pinching off into a broad shallow trough that will drop southeast of the region by late Wednesday morning. With the main AR to the south of the forecast area, showers will remain light across the lower elevations, with only a 15-40% chance of an additional 0.25 inches of rain in the lower elevations (70-80% chance of at least 0.1 inches) this afternoon through early tomorrow afternoon. As for the mountains, snow levels will gradually drop to pass level (3kft to 4kft) across the OR mountain zones as the shortwave forces a cooler airmass into the PacNW tonight. This will result in snow amounts of 0.5" to 3 inches across the passes, WA Cascades, and Southern Blues, with amounts closer to 3 to 5 inches in the interior northern Blues, Elkhorn crest, OR Cascade crest, and the Eagle Caps (confidence 65-85%). Other than precip, breezy west to southwest winds (15 to 25mph with gusts 25 to 40 mph) will develop across forecast area as an area of surface low pressure develops over the upper portions of the Columbia Basin. Drier conditions will settle into the region by Wednesday afternoon as upper level ridging builds across the northeast Pacific, raising 500mb heights across the PacNW. Wednesday Night through Friday: There is good agreement amongst ensemble and deterministic guidance that the PacNW will be under a northwest flow aloft as ridging continues to build over the Northeast Pacific. This will result in mostly dry conditions across the forecast area through Friday night. That said, upslope forcing along the WA Cascade crest will be strong enough to wring out any lingering moisture in the flow aloft and produce light snow flurries, with daily snow amounts anywhere from a trace to one inch at Snoqualmie and White passes. Afternoon breezy winds (15 to 25mph with gusts 25 to 40 mph) will continue to be a daily occurrence across mainly the WA Cascade east slopes/crest, and the Columbia Basin and adjacent valleys/foothills. There is strong agreement amongst ensemble and deterministic model guidance that a surface low will linger across northern WA through Friday, with high pressure developing west of the Cascades and over the Sawtooth mountains in ID. Saturday through Monday: Through early next week, ensemble cluster guidance indicates that a closed low undercutting the upper ridge in the Northeast Pacific will slowly push east towards northern CA and southern OR. As it approaches, the southern portions of the forecast area will see light rain/snow develop as early as Saturday afternoon, with light precip persisting into early next week(confidence 50-70%). Otherwise, dry conditions will prevail across the remainder of the forecast area. Lawhorn/82 && .AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...For the remainder of this morning, a mix of flight categories will be prevailing between MVFR and LIFR for KDLS, KPDT, KYKM, KALW, and KPSC. KRDM/KBDN are currently VFR, but are expected to deteriorate to MVFR for the rest of today. With periods of rain, mist and low to mid CIGs, most sites may fall under MVFR conditions or lower through the remainder of today. However, KYKM could return to VFR around 9Z tonight. Fog with less than a mile may develop for KPDT around 8Z tonight (30-40% confidence). Feaster/97 && .Preliminary Point Temps/PoPs... PDT 34 47 30 54 / 80 10 0 0 ALW 35 48 33 53 / 80 30 0 0 PSC 33 52 33 55 / 50 0 0 0 YKM 27 49 28 52 / 40 0 0 0 HRI 34 51 30 55 / 60 0 0 0 ELN 26 42 29 46 / 40 10 10 10 RDM 31 46 21 52 / 60 10 0 0 LGD 36 46 25 51 / 90 40 0 0 GCD 37 44 23 49 / 80 40 0 0 DLS 34 48 32 53 / 60 0 0 0 && .PDT WATCHES/WARNINGS/ADVISORIES... WA...None. OR...None. && $$ DISCUSSION...82 AVIATION...97

141 FXUS65 KREV 242100 AFDREV Area Forecast Discussion National Weather Service Reno NV 100 PM PST Tue Feb 24 2026 .KEY MESSAGES... * Strong winds with rain and high elevation mountain snow continues through Wednesday. * High flows on rivers and stream with the potential for nuisance flooding in poor drainage areas and possible minor flooding along the Susan River near Susanville. * Warmer and drier conditions return by late this week though another system could arrive by late this weekend into early next week. && .DISCUSSION... Wind, rain, and (high elevation) snow, oh my! Let`s step through this one by one, shall we? It is very windy out there today, with current observations around the ridges of the Sierra topping out around 100 mph while wind prone locations along Washoe Valley have gusts exceeding 75 mph. Travel, both air and ground, have already seen impacts with increased turbulence, delays, and difficult travel for high profile vehicles. Strong gusts may also displace unsuspecting trash cans and light patio furniture. What about the rain? Latest radar shows showers just now pushing into our forecast area in NE CA, though showers have been stagnant along much of the Sierra around the Tahoe Basin. As seen by the wind, we`re relatively shadowed out here in W NV. That is mostly expected to continue, though a few light showers might be able to make it over this afternoon/evening. Otherwise, rain is expected to continue along the Sierra through late tonight, with lingering showers expected to wrap up Wednesday afternoon. The concern with these rain showers though comes with the increased snowmelt and runoff. Expect ponding on roadways as well as poor drainage for low-lying areas. For details on the extent of river rises and flooding potential, please see the Hydrology section below. Snow, you said? I hate to be the bearer of bad news, but only so much snow. Current forecast has 1-6" of snow, mainly along the Sierra crest of Mono county. The warmer nature of this storm system has let snow levels skyrocket to 9,500-10,500 feet today, meaning only the tippy tops of the Sierra will see snow. For more details on SWE and SLRs, please see the Avalanche section below. High pressure returns for the later half of this week, bringing temperatures 10-15 degrees above normal by Friday. This translates to highs in the upper 50s and 60s for Sierra communities and W NV valleys, respectively. While it`ll be quite pleasant for late February standards, a sneaky hazard we could see here is increased snowmelt. Just because it isn`t raining doesn`t mean there won`t be concerns for lingering hydrology impacts. We could see another glancing blow of precip late this weekend (Sunday) from the Tahoe Basin and northward, associated with a cutoff low off the coast of central California. For details related to that system, we`ll have to hold off until later in the week when models can resolve said system better. -Giralte && .AVIATION... Periods of MVFR/IFR conditions for Sierra terminals today with mountain obscurations expected for both Sierra and Sierra Front terminals. SHRA will continue through tonight, dwindling by Wednesday afternoon. The highest rain rates for Sierra terminals will be through 06Z this evening, with lighter, more isolated showers afterwards. LLWS and mountain wave turbulence will prevail today for all terminals today. 700mb (FL100) winds will peak around 70-75kt out of the WSW through at least 03Z today with terminals experiencing gusts up to 40kt. For more information regarding turbulence, LLWS, and more, please visit aviationweather.gov. -Giralte/Justin && .AVALANCHE... Rain and high elevation snow is expected to continue across all avalanche center terrain through Wednesday afternoon. * Snow levels, totals, and rates: Snow levels will range from 9,500-10,500 feet today with the Tahoe Basin on the lower side of that range and Mono county on the higher side. Totals will range from 1-6", primarily for parts of BAC and northern ESAC terrain. Rates aren`t expected to surpass 0.5"/hr. * SWE and SLRs: SWE will be locally higher in the Tahoe Basin with 1-1.5" expected. SWE decreases as you move south with 0.4-0.6" around BAC terrain and up to 0.25" for ESAC terrain. SLRs will be very low at 2-6:1. * Ridgetop gusts: Localized WSW gusts up to 100 mph today, decreasing overnight to 50-60 mph, otherwise gusts of 80-90 mph. Typical ridge gusts up to 35 mph are expected to return by Wednesday afternoon. -Giralte && .HYDROLOGY... High winds, warm temperatures, and moderate rain are already taking a toll on the snowpack and resulting in rises in area rivers and streams. Raw hourly SNOTEL data indicate rain water moving through the snowpack at many locations, even at some elevations above 7000 feet. As of this writing, only a few lower elevation shallow snow sites have indicated any loss of snow water equivalent. So far stream rises have been moderate, but an indicator of how reactive the snowpack and wet soils are to rain and snowmelt. Our primary flooding concerns remain focused on foothill and mountain urban areas where deep snow large plow berms may block drainage systems and funnel runoff into unexpected areas along with ponding in poor drainage areas. While flows are expected to be high along many rivers and streams throughout the area, flooding concerns are limited to the Susan River near Susanville where the river is expected to crest near minor flood stage tonight. It is also worth keeping a close eye on the West fork of the Carson near Woodfords which is expected to approach, but not exceed, minor flood stage. Check for River forecast updates this afternoon and evening at: www.cnrfc.noaa.gov. -TB && .REV Watches/Warnings/Advisories... NV...Wind Advisory until 7 PM PST this evening NVZ002-003. CA...Wind Advisory until 7 PM PST this evening CAZ072-073. && $$

252 FXUS66 KSTO 242126 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 126 PM PST Tue Feb 24 2026 For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing. ..KEY MESSAGES... - Warm storm system brings rain through Wednesday morning - Dry and warming conditions likely for the second half of the week with above normal temperatures - Potential for very light showers mainly over higher terrain over the weekend into early next week with little to no impacts && .DISCUSSION... ...Today - Wednesday Morning... Current RADAR and satellite imagery illustrate precipitation continuing to spread inland across interior northern California today. Slick road conditions are being observed, per the Caltrans traffic cameras. High resolution guidance indicates the precipitation continuing through much of the day today as the moisture progresses inland, before tapering off overnight tonight with some lingering showers mainly over the Sierra Nevada Wednesday morning. Breezy southerly winds are also being observed, with gusts of 20 to 30 mph expected through the afternoon, mainly in the northern/central Sacramento Valley and adjacent northeast foothills. Winds will gradually decrease through the overnight period. Snow levels are very high with this storm system and only very light snowfall is expected at the highest peaks (above 9000 ft) in the High Sierra south of US Highway 50. ...Wednesday Afternoon - Monday... Precipitation tapers off on Wednesday and drier weather returns to the region as high pressure starts to build back in. Temperatures are forecast to warm to above normal for late February and early March climatology. High temperatures for the second half of this week and into early next week are expected to be generally in the 60s to 70s for the Valley and foothills and in the 50s to near 70 for the mountains. Cluster analysis and ensemble guidance then indicate an upper low approaching the Coast and moving into California. This will bring along the potential for very light showers mainly over higher terrain later in the weekend into early next week. Little to no impacts are expected from this precipitation. && .AVIATION... Scattered MVFR/IFR conditions expected through 12Z Wednesday due to -SHRA/RA and low clouds as weather system moves through the area. Breezy southerly winds in the Sacramento Valley with gusts up to 15 to 25kts, and up to 30 kts near the northeastern foothills at times through 00Z Wednesday. Localized LIFR/IFR conditions are possible in the Valley between 04Z and 14Z Wednesday. && .STO WATCHES/WARNINGS/ADVISORIES... None. && $$

743 FXUS65 KMSO 242004 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 104 PM MST Tue Feb 24 2026 .DISCUSSION... KEY MESSAGES: - Snow bands this evening will peak tomorrow morning in Lemhi County with a chance for a snow squall. - Gusty, west winds develop across the region tomorrow and last through Friday. The recent snow and rain has left the boundary layer saturated. That combined with some weak instability aloft and continued strong westerly winds will cause some showers to form in bands. The bands are expected to be pretty weak this evening due to limited instability, but as the sun rises tomorrow they will become stronger. The strongest bands are expected in Lemhi County, Idaho, where there is a 15-25% chance of a snow squall occurring. A snow squall is just a strong snow band that causes 1/4 mile visibility and a temperature drop from above to well below freezing. These conditions cause rapidly changing, treacherous driving conditions. The main reason for the low probabilities are timing, weak instability, and temperatures. The timing of the peak intensity in the morning means the roads won`t have much time to warm up, so the rapid temperature drop is less likely. Later in the day, temperatures are expected to rise into the low 40s as the bands are weakening, and the bands will have a hard time brining down enough cold air to cause the roads to freeze up. Also, the weak instability is in a shallow enough layer that it will have a hard time overcoming down slope flow into the valleys, generally causing less precipitation in the valleys. The increased winds over the region will be supported by a strong jet stream of nearly 150 mph today! Overall, the jet will weaken, but our region remains in a pinch between the polar jet to the north and the subtropical to the south. Due to stable conditions, we expect wind gusts will remain below our advisory criteria with gusts only up to 40 mph in the valleys west of the Continental Divide. There`s generally only a 20-40% chance of gusts over 40 mph at the lower elevations. For those going into the back country for recreation or work, be aware that the winds in the mountains will be much stronger with chances for gusts over 40 mph at 70-100% depending on location and elevation. The National Weather Service in Great Falls has issued high wind warnings for many areas east of the Continental Divide, where wind gusts 65 to 80 mph are expected at times! && .AVIATION...The remnants of an atmospheric river from California continue to stream over the region today. That`s causing intermittent ceiling and visibility restrictions due to showers. This evening, winds will increase due to a strong jet stream overhead, and elevated winds are expected to last through Friday. The combination of the winds and showers is causing the potential for banded snow showers to start tonight. Terminals KHRF, KBTM, and KSMN are the most likely to be affected by these banded snow showers which will last through the night. The window for the peak intensity of the showers is Wednesday morning 25/10Z through 25/18Z. The high winds will also cause low level wind shear with the worst conditions expected at terminal KBTM tonight with near 40 knots of low level wind shear expected. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...None. ID...None. && $$

844 FXUS65 KBOI 242142 AFDBOI Area Forecast Discussion National Weather Service Boise ID 242 PM MST Tue Feb 24 2026 .SHORT TERM...Tonight through Thursday night...Rain and high- level snow continue to stream across our CWA but a cold front from the northwest will carry most of it eastward out of our CWA overnight through Wednesday morning. Light rain and mountain snow will decrease Wednesday then end in all areas Wednesday night. Snow levels will highest this evening, ranging from 6000 feet far north to 8000 feet along the NV border - just before the cold front comes in, then lower overnight through Wednesday. By late Wednesday afternoon snow levels will range from 3500 feet north to 6000 feet near the Nevada border. Storm total QPF and snowfall through midday Wednesday have changed little from previous forecast. The main story Wednesday will be post-frontal west winds in southern Idaho. Speeds will increase to near advisory levels in south- central Idaho midday Wednesday, but stronger in eastern Idaho. We have decided to not issue a Wind Advisory for our CWA. Winds will decrease Wednesday evening and clouds will decrease later Wednesday night allowing temperatures to finally cool to normal for late February. Patchy fog will form in the valleys early Thursday morning. .LONG TERM...Friday through Tuesday...Northwest flow aloft associated with an upper-level ridge axis just offshore of the Western CONUS will create dry and clear conditions Friday. Breakdown of this ridge occurs late Friday into Saturday with the intrusion of an upper-level low embedded in the flow moving into the CA/OR region. This will cause flow aloft to shift to westerly/southwesterly ahead of the low, slinging some moisture into the region. PoPs begin to increase midday Saturday and stay populated until late Monday as the upper-level low moves south/southeast from Northern California. Greatest chance of precip are Saturday evening to Sunday morning at 30-50%. Snow levels will range from 5000-7000 ft MSL, but precipitation amounts will be light. Another upper-level ridge builds in as the low moves out. Above normal temperatures will persist through the pattern, with valleys reaching the low to mid 60s on Tuesday and Wednesday, or around 10 degrees above normal. && .AVIATION...Widespread precipitation and mountain obscuration. Snow levels generally 6-8 kft MSL this afternoon, falling overnight to 4-6 kft MSL by late Wednesday morning. Surface winds: SW-SE 5-15kt. Areas of LLWS concern until Wednesday afternoon. Winds aloft at 10 kft MSL: W 30-45kt. KBOI...Rain becoming intermittent overnight. Frequent MVFR ceilings with periods of low VFR. 10-20% chance of IFR conditions late afternoon/early evening. SE winds 5-10kt. && .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 SHORT TERM...LC LONG TERM....CH AVIATION.....CH

609 FXUS65 KLKN 242000 AFDLKN Area Forecast Discussion National Weather Service Elko NV 1200 PM PST Tue Feb 24 2026 .KEY MESSAGES... 1200 PM PST Tue Feb 24 2026 * Periods of mountain snow and valley rain in Northern Nevada today thru Wednesday morning * Unseasonably warm Thursday and Friday * Next round of atmospheric activity possible this weekend with very low chance of more precipitation * Possible chance of a Rex Block Pattern forming over the southwest next week && .DISCUSSION... (This afternoon through next Tuesday) WEATHER PATTERN OVERVIEW: Very light precipitation activity will continue today into the next morning as moisture is pushed north of Nevada due to a building upper ridge over Baja California. Chances for valley precipitation remain below 50% of seeing up to 0.05 to 0.1 inches of rain. No snow is expected except for high mountain tops as the upper ridge brings in more unseasonably warm temperatures with highs in the 50s to 60s. By tomorrow and into Thursday and Friday, look for more unseasonably warm temperatures each day with drier weather conditions as the upper ridge strengthens across the west. Over the weekend, models are showing a cut off low pressure system making its way over the southwest states by Saturday, however the models begin to diverge over the next week as to the timing and strength of the system, with some models showing the low pressure weakening into a more zonal flow pattern, while others show the system staying put and a Rex Block pattern forms over the west as a high pressure moves to the northwest. Temperatures expected to remain unseasonably warm with highs in the 50s to 60s, and lows in the 30s. Greatest confidence at this time is the low pressure system making landfall by Saturday into Sunday. All other aspects to the forecast will be monitored over the next week. && FORECAST CONFIDENCE & DEVIATIONS: High confidence of light precipitation over northern Nevada today and tomorrow morning. High confidence of upper ridge strengthening over the southwest, bringing back unseasonably warm temperatures Thursday and Friday. Moderate confidence of a low pressure system moving over the southwest over the weekend. Low confidence for additional precipitation from the next low pressure system next week. No changes to NBM grids were made at this time. && .AVIATION... Look for VFR conditions to be dominant across all terminals over the next 24 hour period. VCSH conditions across all northern terminals and KELY this afternoon and into the morning as some moisture pushes south from the moisture to the north. -SHRA conditions expected over all northern terminals this afternoon and evening. CIG levels are not expected to go below VFR however MVFR or lower is still possible from passing storms. Snow is not expected at the terminals due to above normal temperatures. Breezy westerly/southwesterly winds this afternoon with winds up to 10-15 kts, gusts 20-25 kts in northern terminals, 10-12 kts at central terminals. && .LKN Watches/Warnings/Advisories... None. && $$ DISCUSSION...97 AVIATION...97