572 FXUS66 KSEW 282136 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 236 PM PDT Sun Jun 28 2026 .SYNOPSIS... Cloudy skies and cooler temperatures will continue for the majority of this week with a broad upper level trough over Western Washington. Weak weather systems will move through the area throughout the week, bringing chances of showers primarily for the mountains. A warmer and drier pattern is favored to develop this weekend. && .SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/... A broad upper level trough will remain over the Pacific Northwest for the majority of the week, allowing weak disturbances to pass through the region. The majority of locations are expected to remain dry and the highest chances for showers will be limited to the mountains. Overcast skies in the morning and below normal temperatures this week, with temperatures generally in the 60s and low temperatures in the low 50s. May see some breaks in the clouds in the afternoon, but generally expect skies to remain fairly cloudy, especially along the coast. 29 && .LONG TERM /WEDNESDAY THROUGH SUNDAY/... Cloudy skies and below seasonal temperatures will continue into the latter part of the week as long term guidance is in good agreement in keeping the broad trough over the Pacific Northwest through Thursday. A shift in the weather pattern is favored starting Friday as the majority of ensemble members highlight an upper level ridge building offshore in the Pacific. While there is uncertainty regarding the intensity of the ridge and axis location, the majority of members are in good agreement that Western Washington will be under the influence of a ridge this weekend. This will trend towards warmer temperatures and drier conditions. 29 && .AVIATION... Ceilings have been slow to lift this afternoon with a mix of VFR and MVFR. Guidance continues to suggest improvement for the interior terminals this afternoon (now looking after 22z) and conditions rebounding to VFR. There is moderate to high chances (50-70%) for MVFR cigs to return tonight/Monday morning after 06z-09z. In addition, there is a slight chance (15-25%) for IFR cigs between 11z-17z for Puget Sound terminals. Improvement to VFR expected for interior terminals after 22z-23z. Southwesterly winds 6-13 kt this afternoon for the interior terminals and more west-northwesterly along the coast/Strait of Juan de Fuca. Breezy winds this afternoon south of BFI, with gusts to 15-18 kt. KSEA...MVFR cigs continue to slow lift this afternoon, but still expecting VFR conditions this afternoon. There is moderate confidence (50-70%) for MVFR cigs to return as early as 09z Monday and low confidence (15%) for IFR cigs between 13z-17z. Improvement to VFR likely after 22z. Southwesterly winds generally between 6-10 kt through the TAF Period. Breezy winds this afternoon with gusts generally around 15 kt. 29 && .MARINE... The dominant weather feature will involve broad high pressure over the Pacific and lower pressure over the interior that will promote onshore flow through the week. This will lead to gusty northwesterlies over the coastal waters and steep, choppy seas. In addition, the central and east portions of the Strait of Juan de Fuca will likely see diurnally driven increases in westerlies that may reach small craft advisory strength at times. A small craft advisory is set to go into effect this evening. Wednesday looks to be the next strongest push, with probabilities around 45-65% of winds exceeding 21 kt. The offshore ridge looks to weaken late this week for lighter winds and subsiding seas. && .FIRE WEATHER... Little in the way of fire weather concerns remain in the picture well into the week ahead with upper troughing maintaining cool conditions, high RH, and periodic chances for shower activity. A trend toward more seasonable temperatures is indicated toward late week, but a significant warm and dry spell is not expected in the next 7 days. && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...Small Craft Advisory from 5 PM this afternoon to 1 AM PDT Monday for Central U.S. Waters Strait Of Juan De Fuca- East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory until 5 AM PDT Tuesday 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 James Island To Point Grenville 10 To 60 Nm-Coastal Waters From James Island To Point Grenville 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. && $$

508 FXUS66 KPQR 282158 AFDPQR Area Forecast Discussion National Weather Service Portland OR 258 PM PDT Sun Jun 28 2026 .SYNOPSIS...A cool marine pattern remains in place through much of the upcoming week, keeping daytime temperatures below normal and skies generally cloudier than what is typical for late June. A few light showers will linger into this evening, mainly over the Cascades and nearby foothills, while most lowland locations trend drier. Shower chances stay limited Monday through Wednesday, then increase a bit on Thursday before a gradual warming trend develops heading into Friday and next weekend. && .DISCUSSION...Now through Saturday night...The overall forecast remains on track this late afternoon, with onshore flow still firmly established across northwest Oregon and southwest Washington. Northwest flow aloft and a cool marine air mass continue to favor below average temperatures across the area, and that general setup is not expected to change much through Friday. For most of the coming week, highs should top out in the mid 60s to low or mid 70s (coolest at the coast and mildest across the Willamette Valley and Portland metro). Cloud cover has behaved much as expected today, with extensive low clouds during the morning gradually giving way to at least partial afternoon clearing in some spots. This pattern of mostly cloudy nights and mornings followed by occasional afternoon breaks should continue through much of the work week. As for precipitation, shower coverage has diminished compared to Saturday, and much of the lowlands will remain dry for today. The main exception continues to be the Cascades and Cascade foothills, where moist upslope flow is helping maintain the best chance for occasional light showers into this evening. Amounts remain light, and no meaningful rainfall impacts are expected. Looking ahead to Monday through Wednesday, the forecast continues to favor mainly dry conditions for the interior lowlands, with only spotty light showers at times over the Cascades. Thursday brings a slight uptick in shower chances, now only focused around the north Oregon and south Washington coast and Coast Range, which is not surprising as the weak signal for measurable rainfall means forecasted amounts and location of rainfall can change quickly. Current guidance still supports only low-end probabilities for precipitation. Even at these locations, expected rainfall amounts appear light. By Friday into the holiday weekend, temperatures should begin to recover as the broader troughing influence weakens. Confidence remains higher in a warming trend than in the exact magnitude of that warming. At this point, the most likely scenario is for inland highs to climb into the mid to upper 70s Friday and then into the lower 80s by Saturday, July 4, while the coast likely remains in the 60s. Dry weather is favored during that period, but confidence on exact temperatures is still somewhat limited given the remaining model spread (72 to 83 degrees on Friday, 75 to 88 degrees on Saturday). ~12 && .AVIATION...Currently VFR inland and a mix of MVFR/VFR along the coast. Despite some coastal terminals seeing VFR conditions, expect MVFR CIGs at coastal terminals through most of the TAF period (30-70% chance of MVFR, highest at KAST), with widespread MVFR CIGs expected by 00-03Z Mon. As for inland terminals, expect VFR conditions at least until 09Z Mon, then a 30-50% chance of MVFR CIGs between 09-20Z Mon. Expect northwesterly with sustained winds generally 5-10 kt inland and 7-12 kt at the coast, strongest during the afternoon. Gusts up to 20 kt possible at a few terminals along the coast and inland during the afternoon. Winds will become light and mostly southwesterly by 06-12Z Mon, then shift back to northwesterly near 18-20Z Mon. KPDX AND APPROACHES...VFR conditions through at least 09Z Mon. There is a 30-50% chance of MVFR CIGs between 09-20Z Mon. Northwesterly winds around 5-10 kt with gusts up to 18 kt will become light and southwesterly around 11-12 Mon, then shift back to northwesterly by 18-20Z Mon. ~12 && .MARINE...Northwest winds around 10 to 20 kt with steep seas near 7 to 9 ft at 9 seconds driven mainly by a fresh northwest swell will continue through tonight. Weak high pressure builds over the coastal waters on Monday, however northwest winds will continue to build the ongoing northwest swell with significant wave heights increasing to 8 to 12 ft. Seas will be highest over the outer waters. There is a 30-50% chance significant wave heights will peak over 11 ft beyond 30 NM offshore on Monday, mainly to the north of Cape Falcon. Northwest winds and a fresh northwest swell then continues Tuesday through Wednesday, maintaining steep seas and hazardous conditions for small craft. Winds and seas will ease significantly Wednesday. Given steep seas and wind gusts upwards of 20 kt, a Small Craft Advisory is in effect through Tuesday evening, except through Sunday evening for the central and southern inner waters where winds and seas are relatively lower. ~12/23 && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...Small Craft Advisory until 11 PM PDT Monday for PZZ251-271>273. Small Craft Advisory until 11 PM PDT this evening for PZZ252-253. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

466 FXUS66 KMFR 282309 AFDMFR Area Forecast Discussion National Weather Service Medford OR 409 PM PDT Sun Jun 28 2026 .UPDATE...Aviation discussion updated. && .AVIATION...29/00Z TAFs...VFR condition prevail this afternoon, with the exception of some areas along the coast, coastal mountains, and the western slopes of the Cascades and foothills, where showers, MVFR ceilings and terrain obscurations are possible due to upslope winds. Shower activity will dissipate tonight, with MVFR ceilings spreading to much of the coast and the Umpqua Basin. This should burn off through the morning, with VFR then prevailing through the rest of the day. && .PREV DISCUSSION... /Issued 244 PM PDT Sun Jun 28 2026/ DISCUSSION...Cool temperatures and cloudy skies continue today as an upper trough lingers over the area. Northerly flow aloft is keeping slight shower chances (20-40%) over the Cascades north of Crater Lake, but activity elsewhere should be minimal. Overnight lows look to be on the cooler side again as well. Observations from areas east of the Cascades indicate a patchwork of brief frost/freeze conditions from Saturday night into this morning. Current observations show either warmer temperatures, higher humidities, or a combination of both. The conclusion, at least for this discussion, is low confidence in hazardous conditions and no need for a Frost Advisory. However, areas where cloud cover decreases this afternoon would see more radiational cooling. Individuals with sensitive plants or animals may want to consider preventative actions. The upper trough remains in place but weakens through the week, bringing a gradual warming trend but with temperatures staying below seasonal norms through Thursday. Shortwaves following the trough look to keep afternoon breezes just above normal speeds, especially over elevated terrain. Winds of 10 to 20 mph with gusts approaching 30 mph may be present at higher elevations. Drier air aloft is minimizing thunderstorm chances through the forecast period. Currently, Friday is showing a return to normal temperatures. A weak upper ridge looks to nudge daytime highs about 5 degrees above normal across the area. This would bring high 60s to mid 70s along the coast and high 80s to mid 90s to west side valleys. East of the Cascades would see temperatures in the mid to high 80s. A zonal flow pattern could keep uneventful seasonal conditions in place beyond next weekend. -TAD && MARINE...Updated 100 PM PDT Sunday, June 28, 2026...North winds continue to maintain strengthen today, and will result in very steep and hazardous seas from Gold Beach southward this afternoon and evening. North of these areas, incoming swell and north winds will maintain steep seas. A brief period of gale force gusts are possible south of Brookings and within 20 nm from shore today. This pattern will further strengthen Monday through Tuesday evening, with gales likely south of Nesika Beach. Elsewhere, northerly winds and strengthening northwest swell may continue steep seas through Tuesday evening and potentially into Wednesday. Winds ease slightly with improving conditions late in the week. && .MFR WATCHES/WARNINGS/ADVISORIES... OR...CA...None. PACIFIC COASTAL WATERS...Small Craft Advisory until 11 PM PDT Tuesday for PZZ350-356-370-376. Hazardous Seas Warning until 11 AM PDT Monday for PZZ356-376. Gale Watch from Monday morning through Tuesday evening for PZZ356-376. && $$

644 FXUS66 KEKA 282253 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 353 PM PDT Sun Jun 28 2026 ..SYNOPSIS...Seasonably warm and dry conditions will build through midweek with gusty north wind along shore each afternoon. && .KEY MESSAGES... -Gusty north winds each afternoon along shore through mid week with gusts near 30 mph. -Gradual warming and drying trend peaking Tuesday. -Potential drizzle late week. && .DISCUSSION...High pressure will has started to form over the eastern pacific and align with shore. This has helped create strong, persistent north wind along shore and across exposed areas of the interior. Coastal headlands and peaks have seen gusts in excess of 30 mph this afternoon. Temperatures have also warmed for the interior under clear skies with high temperatures in the low 80s. Gusty north winds will persist near shore all through the week. High temperatures will peak around Monday and Tuesday with the warmest interior valleys reaching near 90. Models suggest a weak, night marine layer may form in protected coastal areas such as Humboldt Bay, but gusty north wind will help quickly mix out any clouds each day. Looking at the extended forecast, most ensemble models show a quick moving trough clipping the area around next Friday, though compared to previous forecasts, most models now place it further north. As the trough approaches, more clouds will build in, helping to slightly cool conditions once again. A stronger marine layer is likely along shore around Thursday ahead of the trough. If the enough moisture can build along shore, another round of drizzle is likely, though chances for any wetting rain remain low (less than 15%) and mostly north of the area. Stronger high pressure and warming is likely behind the front. /JHW && .AVIATION...Strong north winds have once again helped maintain VFR conditions all day today with the wind itself being the main aviation concern close to shore. There is slight potential for some MVFR to IFR ceilings (30% chance) this evening around Humboldt Bay, but most models maintain VFR conditions all night and through tomorrow. /JHW & .MARINE...Near gale conditions have built in the outer waters today with very steep short period seas quickly building in response. Winds will continue to creep upwards through Monday with more widespread gale conditions in the outer waters. Strong north winds and steep short period seas up to 12 feet will also push closer to shore in the inner waters by Monday afternoon. Hazardous and gale conditions will be prolonged, most likely persisting through at least Thursday when a very mild reprieve is expected. /JHW && .EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 3 PM PDT Tuesday for PZZ450-455. Gale Warning until 3 PM PDT Tuesday for PZZ470-475. && $$ 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

773 FXUS66 KMTR 281900 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 1200 PM PDT Sun Jun 28 2026 ...New SHORT TERM, LONG TERM... .KEY MESSAGES... Updated at 1200 PM PDT Sun Jun 28 2026 - Seasonally cool temperatures along with breezy afternoon winds persist into the middle of the week - Gradual warming trend begins towards the end of the upcoming work week - Increased risk of sneaker waves and strong rip currents through Wednesday morning along the Pacific coast && .SHORT TERM... Issued at 1200 PM PDT Sun Jun 28 2026 (This evening through Monday night) The weather pattern across California is generally dominated by troughing across the Western United States which will promote seasonally cool temperatures along with gusty northwest winds during the afternoon and evening hours. High temperatures today will range from the upper 70s to the middle 80s in the inland valleys, up to the upper 80s in the warmest spots of southern Monterey County, the upper 60s to upper 70s close to the Bays, and the lower to middle 60s along the Pacific coast. Wind gusts will reach the 20 to 30 mph range this afternoon and evening along the coast, through gaps and passes, within the Salinas Valley, and at favored ridgelines. Tonight through Monday, a smaller-scale low pressure system breaks away from the upper level trough near Oregon and travels southwards paralleling the coast, reaching the vicinity of the SF Bay Area by Monday afternoon. Lows on Monday morning will hover in the upper 40s and the 50s, and some stratus development is possible along the coast from San Mateo County southward, inland across the Monterey bay region into the Salinas Valley and the Morgan Hill-Hollister corridor, and portions of the East Bay west of the Berkeley-San Leandro Hills. Daytime highs on Monday should be largely similar to those seen today, with perhaps a few degrees of warming in the interior North and East Bays and a few degrees of cooling across the warmest spots of southern Monterey County. The risk of minor coastal flooding continues through Monday night along low-lying areas in the Pacific coast and the San Francisco and San Pablo Bays. The combination of thermal expansion within the Pacific ocean, a full moon on Monday, and southerly swell will account for a little over half a foot of surge over the astronomical tide. Around 0.7 feet of inundation over normally dry ground (6.49 ft MLLW) is forecast at high tide at the San Francisco tide gauge at around 10:55 PM tonight. In addition, long-period southerly swell will continue to increase the risk for sneaker waves and strong rip currents along the Pacific coast, particularly at south and southwest facing beaches. A Beach Hazards Statement remains in effect through Wednesday morning, see the BEACHES section for more details. Never turn your back to the ocean! && .LONG TERM... Issued at 1200 PM PDT Sun Jun 28 2026 (Tuesday through next Saturday) Troughing continues to impact the region into the middle of the week with highs in the inland valleys hovering near to around 10 degrees below the seasonal averages, ranging in the middle 70s to the middle 80s through Thursday. A more robust marine layer could deck should develop Monday night through Tuesday morning, and will mix out into the afternoons before building back each evening and overnight. The trough begins to fill in Thursday and Friday, and more zonal flow is expected for the upcoming weekend, allowing a gradual warming trend to start in time for Independence Day. Towards the beginning of next week, ensemble model clusters show agreement towards a ridge building up across the Western United States, with the interaction between the ridge and any troughing over the Eastern Pacific, which would modulate how impactful the ridge ends up for our region, still to be determined. && .AVIATION... (18Z TAFS) Issued at 1054 AM PDT Sun Jun 28 2026 Widespread VFR lasts into the night. Winds increase across the region into the afternoon becoming moderate to breezy. Winds will reduce into the night, becoming light for most areas into Monday morning. Cloud cover returns to the Monterey Bay and HAF into the late night with MVFR CIGs. This cloud cover erodes into the mid morning on Monday, leading to widespread VFR again. Vicinity of SFO...VFR through the TAF period. Breezy west winds build into the mid afternoon with gusts around 22kts expected. Gusts cut off into the night and winds reduce slightly. Expect winds to become light into early Monday with breezy west winds returning that afternoon. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...VFR lasts into the night. Expect moderate winds to build in the afternoon across the area with gusty conditions affecting SNS. Winds reduce into the evening as come low clouds begin to flow through the area. MVFR CIGs fill over the terminals into the late night. These CIGs look to erode into late Monday morning at SNS and slightly beyond the TAF period for MRY. && .MARINE... (Today through Friday) Issued at 1054 AM PDT Sun Jun 28 2026 Strong northwest winds will continue to result in hazardous seas for small craft across the waters well into the work week. Gale force gusts will continue over the northern outer waters until early monday morning before winds reduce. Long period southwest swell will persist through the extended forecast. && .BEACHES... Updated at 1225 AM PDT Sun Jun 28 2026 A Beach Hazards Statement remains in effect for the Pacific Coast Beaches through Wednesday morning as long period southerly swell returns to the coast, creating an increased risk of sneaker waves and strong rip currents, especially for south and southwest facing beaches. Hazardous beach conditions are advertised, specifically for moderate to steeply sloped beaches along the Pacific Coast of the North Bay, San Mateo, Santa Cruz counties. Sneaker waves will run up the beach much farther than other waves, potentially catching beachgoers by surprise and resulting in people being swept into the water. Rip currents are strong enough to pull the strongest swimmers away from shore. Swim near a lifeguard if possible. Stay back from the beach, and away from jetties, piers, beachside rocks, and other infrastructure near the water. Never turn your back to the ocean! && .MTR WATCHES/WARNINGS/ADVISORIES... CA...Beach Hazards Statement through late Tuesday night for CAZ006- 505-509-529-530. PZ...Small Craft Advisory from 3 PM this afternoon to 9 PM PDT this evening for Mry Bay. Small Craft Advisory until 3 AM PDT Tuesday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm. Small Craft Advisory until 3 AM PDT Monday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm. Gale Warning until 3 AM PDT Monday for Pt Arena to Pt Reyes 10- 60 NM. && $$ SHORT TERM...DialH LONG TERM....DialH 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

591 FXUS66 KOTX 282225 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 325 PM PDT Sun Jun 28 2026 .KEY MESSAGES... - Breezy gap winds persist through this evening along the Cascades. - Wetting rains overnight for eastern WA and north ID including over 1.00" of rain in the mountains of ID. - Thunderstorms in northeast WA and north ID Monday afternoon && .SYNOPSIS... A band of rain is expected to impact much of the Inland Northwest later this evening and overnight. Following the rain, scattered showers and isolated thunderstorms are expected to develop Monday afternoon over north ID and northeast WA. Unsettled weather and cooler than normal temperatures will persist the remainder of the week with isolated shower activity. By the weekend, a ridge will build bringing temperatures back up to normal in time for the holiday weekend. && .DISCUSSION... Tonight through Monday... The satellite view over the Pacific Northwest is an impressive site for late June, particularly when you consider that 5 years ago today was the peak of the historic heatwave that brought record breaking temperatures. Three distinct circulations can be seen on the water vapor imagery; the parent low over northern Nevada, a second more vigorous circulation retrograding over northern Montana, and a final weaker circulation moving due south on the western periphery of the trof. It is the northern Montana circulation that will bring the Inland Northwest a much needed band of wetting rains overnight and a round of thunderstorms Monday afternoon. The cloud shield ahead of this wave has already overspread much of Washington and radar echoes are now showing up over far northern Idaho. Models have come into agreement that a band of rain will move south and west this evening, bringing north Idaho and eastern WA approximately .15-30" of rain in the lower elevations and heavier amounts in the ID mountains (.50-1.25"). The 992 mb surface low pressure currently located in northwest Montana will slowly fill to 998 mb and drift southeast by this time tomorrow. The relaxing pressure gradient across the Cascades will help reduce the gap winds that are currently gusting 30-40 mph. Instability increases Monday afternoon over far northern ID and the northeast WA mountains resulting in scattered showers and isolated thunderstorms. Model guidance depicts over 1000 J/kg of most unstable CAPE near the Canada border but quickly decreases to below 250 J/kg over Spokane and Lincoln Counties. The expectation is that storms will develop in the early afternoon and drift south-southwest toward the Spokane/CdA metro area. The Storm Prediction Center (SPC) currently paints the northern half of Lincoln, Spokane, and Kootenai Counties in general thunder Monday. While severe weather is not anticipated, brief heavy rain, small hail (<.25"), and gusty winds are all possible in this area through 2000 Monday. The limited instability will lead to storms weakening as they approach I90, although gusty outflow winds and brief heavy rain is still a distinct possibility in the metro area. Tuesday through Friday... Following the active first 24 hours of the forecast period, conditions settle down over the Inland Northwest. The anomalous trof over the western US is reinvigorated by a new parent low dropping south out of the Yukon and into northern British Columbia. This trof will remain over the Inland Northwest through the week bringing unsettled conditions...meaning partly to mostly cloudy skies with afternoon showers and isolated thunderstorms. The lower heights will also keep temperatures 5-10 degrees F below normal for this time of year. 4th of July Weekend...Models have consistently started to nudge the trof to the east on Friday resulting in a building ridge over the PacNW just in time for the holiday weekend. Temperatures will begin climbing back closer to normal by Saturday (upper 70s to lower 80s) and above normal by Sunday (widespread 80s). The upper level ridge will help clear out the clouds and bring dry conditions for what looks like a beautiful holiday weekend. /AB && .AVIATION... 18Z TAFs: Gusty west to southwest winds across the region today, especially for KEAT with west-northwest winds peaking between 1z-8z with gusts near 35 kts. An area of stratiform rain associated with this low will track from northeast to southwest across North Idaho and Eastern WA tonight. The chance for reduced flight categories increases tonight and especially tomorrow morning. IFR to MVFR cigs will be possible at all sites except for MWH/EAT. MVFR vis possible mainly from COE to PUW to LWS. Improvements to cigs expected near or just after end of TAF period. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: There is a 40-50 percent chance of MVFR CIGS developing after 06z tonight at GEG/SFF/PUW/LWS and near 60 percent at COE. There is also a 25-35 percent chance of IFR CIGS at GEG/SFF/PUW/LWS and near 40% chance at COE. ----------------------- 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 52 72 51 70 48 73 / 90 30 40 30 0 0 Coeur d`Alene 51 68 50 69 50 72 / 100 60 60 50 0 0 Pullman 46 64 48 68 44 70 / 90 80 20 10 0 0 Lewiston 52 71 51 77 52 78 / 90 90 10 10 10 0 Colville 54 80 52 70 44 74 / 80 40 80 60 30 30 Sandpoint 52 67 50 66 47 70 / 100 70 80 60 10 10 Kellogg 47 61 48 67 48 70 / 100 100 40 50 10 10 Moses Lake 57 81 54 79 48 79 / 30 20 10 10 0 0 Wenatchee 59 80 58 78 55 78 / 10 10 10 10 0 0 Omak 57 85 57 77 52 78 / 30 10 40 40 30 10 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$

781 FXUS66 KPDT 282233 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 333 PM PDT Sun Jun 28 2026 .KEY MESSAGES... - Widespread breezy to locally windy conditions through this evening, strongest winds in the Kittitas valley - Morning showers in eastern portions of the Columbia Basin tomorrow - Below-normal temperatures, breezy to locally gusty west winds, and occasional light mountain showers through the week && .DISCUSSION... Water vapor satellite imagery this afternoon shows a closed low centered along the MT/ALberta/Saskatchewan border, which facilitated a shortwave passage over the forecast area earlier today. Showers associated with this shortwave continue to push south across Wallowa, Union, and Grant counties this afternoon, with shower activity expected to diminish by early this evening. Otherwise, a surface low strengthening under the upper low has resulted in a tightening cross-Cascade pressure gradient, with breezy to locally windy westerly winds (15-30 mph with gusts 25-45mph) spilling through the Cascade gaps and into the lower elevations. The strongest winds so far have been noted in portions of the Kittitas valley and the Eastern Columbia River Gorge, with gusts up to 50 mph and sustained winds around 30 mph. Monday through Thursday: A prolonged troughing pattern supported by periodic shortwave passages will remain over the PacNW through the workweek. The upper low will continue to meander east tonight through Monday, with the next round of shower activity expected to arrive across the eastern third of the forecast area with a shortwave passage late tonight through tomorrow morning. There is increasing confidence (55-75%) that showers will also impact eastern portions of the Columbia Basin (including Tri-Cities and Hermiston) tomorrow morning, with heaviest showers expected along the WA Blue Mountain foothills. Cluster ensemble guidance remains in good agreement of a shortwave trough diving down the AK/BC coastlines and across the PacNW Tues/Wed which will bring another round of light mountain rain showers (confidence 55-75%). Another shortwave trough is advertised to drop into the PacNW Thursday, however, over the last 24 hours, ensemble and deterministic guidance has trended drier with this system. Confidence in another round of light mountain showers for Thursday is low-mod (30-45%). Breezy winds will remain in place across the lower elevations and Cascade Gaps through much of the work week as the troughing pattern persists overhead. After today, winds will generally be between 15-25 mph with gusts up to 40 mph throughout the week. Lastly, the persistent trough pattern will keep temperatures much cooler than normal through the week, with afternoon temperatures generally 5 to 15 degrees below normal (confidence 60-75%). This means that afternoon temperatures in the lower elevations will be in the 70s, with locally 80s, throughout much of the week. In the mountains, mid-elevations will generally be in the upper 50s to 60s, with lower to mid 50s in the high- elevations. Friday and Saturday: Late Friday into Saturday, ensemble cluster guidance is in agreement of the upper trough pushing east, with a quasi-zonal flow and weak upper level high pressure developing over the PacNW (confidence 40-65%). This will result in a warming trend into near to above normal temperatures across the forecast area (80s in the lower elevations, 60s and 70s mountains) with dry conditions and light winds by Saturday. Lawhorn/82 && .AVIATION /00Z TAFS THROUGH 00Z TUESDAY/... VFR conditions will persist through the forecast period. Winds will continue to be be the primary concern with all TAF sites seeing breezy conditions that range between 12-22 kts sustained with gusts between 21-30kts. && .Preliminary Point Temps/PoPs... PDT 50 73 48 75 / 10 50 10 0 ALW 53 74 54 76 / 60 70 10 0 PSC 54 79 51 80 / 30 50 10 0 YKM 53 82 52 82 / 0 10 10 0 HRI 52 77 50 78 / 0 30 10 0 ELN 52 72 49 73 / 10 10 10 0 RDM 40 71 36 73 / 0 0 0 0 LGD 47 69 46 74 / 30 60 10 10 GCD 44 71 42 75 / 0 10 10 0 DLS 55 72 53 72 / 0 0 0 0 && .PDT WATCHES/WARNINGS/ADVISORIES... WA...Wind Advisory until 11 PM PDT this evening for WAZ024-026. OR...Wind Advisory until 11 PM PDT this evening for ORZ041. && $$ DISCUSSION...82 AVIATION...90

187 FXUS65 KREV 281909 AFDREV Area Forecast Discussion National Weather Service Reno NV 1209 PM PDT Sun Jun 28 2026 .KEY MESSAGES... * Cool and pleasant conditions through Monday with morning lows near freezing in the Sierra valleys. * Afternoon breezes return for the second half of this week with near normal summer temperatures and dry conditions for the holiday weekend. && .DISCUSSION... Cool, calm, and collected is the name of the game today! The only exception may be along the Sierra crest from South Lake Tahoe down to Mammoth where most hi-res solutions (minus the HRRR) are highlighting light shower potential this afternoon. Otherwise, expect highs in the low 70s and 60s for valleys and higher elevations, respectively. Another cold morning on tap Monday morning, with a ~45% chance for lows near or below freezing for colder Sierra valleys. Models have quickly resolved an insider-slider type low tomorrow, which is a bit odd for late June. Anyhow, this closed low pressure will bring additional upper level forcing, though the moisture content is quite low. Shower and thunderstorm chances increase along the Sierra tomorrow afternoon, with 100-300 J/kg MUCAPE from Truckee down to the Mono/Inyo county border. PWATs are quite low, though, only 0.3-0.4" at best. As such, expect any storms that develop (10-15% chance) to be on the drier side. The low pressure system that brought this weekend`s much cooler temps will stall over the Great Basin this week, helping to keep afternoon highs near or slightly below normal (mid 80s and low 70s for W NV and Sierra communities, respectively) through midweek. We will also see enhanced breezes by the middle of the week, with the best chances for gusts to exceed 30-35 mph on Thursday for W NV. With the pre-existing dry vegetation and low humidities, elevated fire weather conditions are likely to emerge. Looking further out, afternoon highs will increase to the low 90s for W NV and low 80s for the Sierra for Independence Day. -Giralte && .AVIATION... VFR conditions for all terminals today. Afternoon cumulus build ups after 21z are possible along the Sierra between KTVL-KMMH, though chances remain below 15%. Any showers that develop may bring localized mountain obscurations. A second weather system arrives Monday with an increased chance of showers and thunderstorms KTRK-KMMH 21z-03z Tuesday. -Giralte/Brong && .REV Watches/Warnings/Advisories... NV...None. CA...None. && $$

855 FXUS66 KSTO 281815 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 1115 AM PDT Sun Jun 28 2026 .KEY MESSAGES... - Elevated fire weather conditions Sunday-Monday due to increased North winds across portions of the Valley. - Chances for isolated mountain thunderstorms Monday afternoon/evening south of I-80. - Cooler temperatures and breezy onshore flow expected Tuesday onward. && .DISCUSSION... As an upper level trough continues its exit from California and into the Great Basin area, north winds continue today and Monday through the western portions of the Sacramento Valley & Delta. This also brings fire weather conditions Sunday into Monday. Strongest winds and most fire weather conditions peaked this morning, but gusty conditions will linger through the afternoon and overnight into Monday. Additionally on Monday, a lobe of energy phasing out of the exiting trough will bring isolated mountain thunderstorm chances (10-15%) south of I-80 in the afternoon and evening. Tuesday and beyond, another cooling trend is expected which will result in below normal temperatures across interior NorCal and periods of breezy onshore flow in the forecast. By the end of the week, troughing will phase out of the area and temperatures will return to more normal for the time of year. The holiday weekend currently looks like it will see Valley highs in the 90s, with decent overnight cooling (especially near the Delta) which will provide relief from the warmer daytime temps. && .AVIATION... VFR conditions are expected over the next 24 hours. North winds with gusts 15 to 25 kts in the Valley until 00Z Monday. West- southwest gusts 15 to 20 kts in the Delta from 21Z Sunday until 09Z Monday. North winds increase in the northern Sac Valley after 06Z Monday. && .STO WATCHES/WARNINGS/ADVISORIES... None. && $$

457 FXUS65 KMSO 282005 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 205 PM MDT Sun Jun 28 2026 KEY MESSAGES: - Flash Flood Watch: Localized heavy rain is expected to develop later this afternoon and evening from the Glacier Region to the Mission Mountains. Swollen streams, isolated mudslides, and increased runoff is possible. - Hypothermia risk with falling snow above 6500 feet and cold backcountry temperatures continues from the southern Bitterroot Mountains east towards the Divide through Monday. - Strong south to west winds between 20 to 30 MPH are expected through tonight at Flathead Lake. These winds and choppy conditions are dangerous for small-craft. - Scattered heavy showers or thunderstorms are possible across northwest Montana, generally north of Interstate 90 Monday afternoon and evening. These could cause localized stream, rockfall, and/or debris flow issues. - Near seasonable temperatures along with daily thunderstorm chances are possible Tuesday through Friday of next week. .DISCUSSION... A very unusual synoptic pattern to discuss this afternoon. The MRMS radar loop shows a massive area of precipitation wrapped around a low in southern Alberta, Canada. This area of heavier rainfall, possibly a "seclusion", is making its way south and west towards northwest Montana. This system will bring in 200% of normal of atmospheric moisture and set the stage for heavy mountain rainfall in the Glacier Region south and west to the Mission Mountains. Due to the strong pressure/wind gradient of 18 millibars between the 987 millibar surface low pressure in southeast Alberta and 1005 millibars at Glacier Park International, the winds have been sustained over 20 mph at Flathead Lake. Because of this, there is a Flathead Lake Wind advisory in effect through late tonight. Winter storm warnings continue to be in effect for the Bitterroot Mountains and southwest Montana locations through Monday morning. Recent model trends continue to show snowfall in these area. The intensities may increase once the slug of moisture from Canada arrives late tonight. By Tuesday, winds will relax and we will transition into a weak ridge of high pressure with slightly unstable air. Given the widespread precipitation, fog and low clouds could cause travel issues across the region Tuesday morning. The lingering moisture will also support scattered showers later in the day. A moderating trend is expected later this week with possible thunderstorms each day. With the added boundary layer moisture from all the rain, this could enhanced the instability each day. && .AVIATION...A large upper low over Montana will bring in heavier rainfall from northwest Montana by this evening 29/0000Z/6PM MDT and spread southwards with time. There will be plenty of low clouds around, potentially IFR (Instrument Flight Rules) at times throughout the night tonight into Monday. Moderate to heavy rain intensities will be possible and with the added moisture, reduced visibility from rain and/or fog could be an issue. GPI has the greatest chance for heavy rain rates this evening. MSO could experience occasional heavy rain rates later tonight. Other terminals will experience steady rain at times into Monday. Gusty south to west winds to 25 knots are possible across western Montana this afternoon and evening due to the tight 10+ millibar gradient. The elevated moisture levels continue on Monday there could be moderate showers and a few thunderstorms capable of very heavy rainfall across the region. The higher probability for any thunderstorms will be north of I-90 to northwest Montana. && .HYDROLOGY...Anomalously high moisture content (200% of normal) will fuel heavy precipitation through Monday across western Montana, especially northwest Montana tonight through Monday. Snow levels rising toward 8000 feet will support efficient, heavy rainfall. When combined with south- to-westerly winds picking up extra moisture off Flathead Lake, rain intensities will increase. High-resolution weather models show possible rain rates over 0.30 inches per hour in the Lewis, Northern Swan, and Mission Ranges tonight into Monday morning. Fortunately, existing snowpack is minimal, so this will translate purely to increased stream runoff. Areas prone to rockfalls or mudslidesincluding upper elevations of the Going-to-the-Sun Roadcould be vulnerable depending on exactly where the heaviest rain sets up. Campers and RVs parked close to streams or the Hungry Horse Reservoir should consider repositioning to higher ground today. Flash flood watches were hoisted for both Flathead and Lake Counties to address the heavy rain potential. By Monday afternoon, more moderate to heavy showers could impact the Lincoln, Sanders, and Lake County areas. High resolution models depict possible 0.50 to 1.00 per hour rain-rates primarily in the foothills and mountains in these areas. This has been a recent change and we are contemplating issuing further watches if run-to-run consistency continues. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...Winter Storm Warning until 9 AM MDT Monday for Bitterroot/Sapphire Mountains...Butte/Blackfoot Region. Flash Flood Watch through late tonight from the Glacier Park Region to the foothills and Mission Mountains. Lake Wind Advisory until 3 AM MDT Monday for Flathead/Mission Valleys. ID...Winter Storm Warning until 9 AM MDT Monday for Eastern Lemhi County...Western Lemhi County. && $$

321 FXUS65 KBOI 282133 CCA AFDBOI Area Forecast Discussion...CORRECTED National Weather Service Boise ID 214 PM MDT Sun Jun 28 2026 .KEY MESSAGES... - Showers and isolated thunderstorms are expected this afternoon and evening across southwest Idaho. - Precipitation will persist across the West Central mountains through Monday, with another round of showers returning Tuesday afternoon. - Warmer and drier conditions Tuesday through Thursday. && .SHORT TERM /Through Tuesday Night/... Scattered showers and isolated thunderstorms will continue this afternoon and evening, with the main focus across southwest Idaho as moisture moves in from the north on the back side of the upper level low. The greatest chance for thunderstorm activity will be over the higher terrain south of the Snake River Plain during peak afternoon and evening heating before tapering off tonight. There is a 30% chance for these light rain showers to reach the Treasure and Magic Valleys tonight through Monday morning, though rainfall looks to be minimal. Showers will continue across the West Central mountains through Monday, finally coming to an end Monday night as the parent low moves east into the northern plains. The central mountains will see additional precipitation totals between 0.25 and 0.75 inches through Monday. Areas above 7500 feet could see an additional 1 to 3 inches of snowfall tonight. A broad upper level trough remains over the area on Tuesday. This persistent large-scale pattern will allow a weak shortwave passage to cross the region, triggering another round of showers across the west central mountains. Temperatures will remain well below normal, tracking roughly 10 to 15 degrees below seasonal averages through the short term period under the influence of the trough. && .LONG TERM /Wednesday through Sunday/... Troughing over the region will support isolated showers and thunderstorms across the higher terrain of SW Idaho, and cooler than normal conditions through the end of the week. Most guidance shows this trough deepening just to our west throughout the week. With flow taking on more of a southwesterly compenent, temperatures will steadily warm. As of now it appears that this warming trend will be more gradual in eastern Oregon. Come Friday, the trough finally looks to progress east of our area. This will temporarily hinder the warming trend on Friday, before a building ridge behind the trough brings temperatures back up to near normal. The timely exit of this trough will make way for a pleasant Fourth of July, with near normal temperatures and dry conditions. The pattern evolution becomes more uncertain to end the period, although the Grand Ensemble favors continued ridging and therefore continued warm and dry conditions. && .AVIATION /18Z Sunday through Monday/... Issued 1148 AM MDT SUN JUN 28 2026 Generally VFR. Isolated to scattered showers continuing through the period, mainly in the W-Central ID Mtns. MVFR/IFR conditions possible in mtn showers. Mtns obscured. Isolated lightning this afternoon near the ID/NV border and in the W-Central ID Mtns. Surface winds: W-NW 10-20 kt with gusts 20-30 kt this afternoon. Then variable 5-10 kt overnight, except W-SW 10-15 kt near KJER/KTWF. Winds aloft at 10kft MSL: NW 5-15 kt. KBOI...VFR. Isolated showers this afternoon and evening. Most likely time of rain at terminal between Mon/00-06z. Foothills obscured. Surface winds: NW 10-15 kt with gusts to around 20 kt this afternoon. Then variable (leaning S-SE) under 8 kt overnight. && .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...JDS LONG TERM....NF AVIATION.....NF

162 FXUS65 KLKN 282031 AFDLKN Area Forecast Discussion National Weather Service Elko NV 131 PM PDT Sun Jun 28 2026 .KEY MESSAGES... * Showers and thunderstorms continue across Northeastern Nevada * Elevated fire weather conditions across portions of Central Nevada later this afternoon with northwest winds gusting 20 to 30 mph * Various Frost and Freeze headlines have been issued for much of Northern and Central Nevada tonight through Monday morning due to cold temperatures. && .DISCUSSION... (This evening through next Saturday) WEATHER PATTERN OVERVIEW: Current radar loop this afternoon is depicting isolated to scattered showers and isolated thunderstorms across much of northern Nevada this afternoon. The convective activity will gradually shift during the east during the overnight. Clouds are expected to scatter out during the night with mostly sunny skies and drier air becoming prevalent by morning. With the clearing skies, radiational cooling is expected to bring cold temperatures to the forecast area. As a result, multiple frost and freeze headlines have been issued with some of the colder locales possibly seeing the low to mid 20s tonight. Most locations will generally be in the low to mid 30s though with light winds. A fairly expansive ridge is currently sitting across the southeastern United States at this time, helping to keep a longwave trough over the western United States. A slow warmup will commence during the week with readings warming a few degrees each day, with highs returning to the 80s by mid-week, with the possibility of the 90s by the end of the week and into the weekend. Overnight lows will continue to remain on the chilly side with 30s Monday night, rising to the 40s and 50s by the middle portions of the week. At this time, winds will remain breezy with afternoon gusts of 20 to 25 mph but are expected to remain below advisory thresholds at this time. FORECAST CONFIDENCE & DEVIATIONS: Confidence is moderate to high regarding the cold temperatures tonight, hence the frost and freeze headlines. Moderate confidence for quiet weather conditions through next week. No changes were made to NBM grids at this time. && .AVIATION... VFR conditions will continue at all terminals through the 24 hour period. ISOLD to SCT showers and ISOLD thunderstorms will continue to shift east during the evening hours tonight with clouds scattering out from west to east by Monday morning. Very low chance (less than ten percent) of seeing fog across the northern terminals. Winds will be light tomorrow with afternoon breezes to 25KT possible at KTPH. && .FIRE WEATHER... Isolated to scattered showers and isolated thunderstorms will continue across much of Northeastern Nevada through the early evening hours. Drier across Central Nevada where breezy NW winds gusting to 30 mph and RHs in the 10 to 20 percent range are expected to remain during the late afternoon and early evening. Look for fairly benign conditions through the rest of the week with afternoon breezes and a slow warmup. && .LKN Watches/Warnings/Advisories... Freeze Warning from 11 PM this evening to 8 AM PDT Monday for NVZ031-034-035-037>039. Frost Advisory from 11 PM this evening to 8 AM PDT Monday for NVZ036. && $$ DISCUSSION...86 AVIATION...86 FIRE WEATHER...86