775 FXUS66 KSEW 010309 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 808 PM PDT Tue Jun 30 2026 .SYNOPSIS... A broad upper level trough will continue to produce mostly cloudy and cool conditions across Western Washington into Thursday along with chances for light showers over the mountains and along the coast. Drier conditions and a small warming trend are expected Friday into the holiday weekend as the flow aloft becomes first more zonal then southwesterly by Monday. Temperatures will return closer to normal with more chances for sun. && .SHORT TERM /TONIGHT THROUGH THURSDAY NIGHT/... Fairly widespread stratus persists early this afternoon across the lowlands with a few breaks in the cloud deck noted across the Strait of Juan de Fuca and near Everett. Additional slow improvement with increasing cloud breaks is expected through the afternoon hours, though complete clearing is unlikely. With additional afternoon filtered sunshine, still anticipate high temperatures reaching into the mid and upper 60s across the Puget sound and near 60 along the immediate coast. With nightfall, a return of overnight stratus and drizzle is expected with partial afternoon clearing on Wednesday, overall very similar weather to conditions today. On Thursday into Thursday night...a slightly stronger shortwave will push into British Columbia and drag a weak cool front into Western WA, which will result in enhanced light rainfall chances across the coastal zones and the Olympics, and a deepened marine layer across the Puget Sound for much of the day. Otherwise, seasonably cool conditions will persist. && .LONG TERM /FRIDAY THROUGH TUESDAY/... The weather pattern will begin to transition on Friday into the weekend as heights slowly begin to rise in response to strengthening high pressure across the Western US. This will allow for the daily stratus layer to gradually thin out and burn off earlier in the day, and a slow warming of temperatures through the weekend back to near seasonal normals. Additional warming is anticipated heading into next week as high pressure amplifies over the interior West, with temperatures climbing above normal. Outler && .AVIATION... A nearly stationary broad upper level trough over the west coast will maintain northwesterly flow aloft. VFR cigs present over much of W WA this evening although there are isolated patches of MVFR/IFR...mainly locations more prone to lower cigs such as HQM and PWT. These VFR conditions will be brief, as redevelopment of stratus is expected tonight as cigs lower to MVFR /with localized areas of IFR possible/ overnight. Current pattern will continue into Wednesday, with a return to low-end VFR conditions expected to emerge for most terminals in the afternoon. South to southwest winds 5 to 10 kt will continue through the period. KSEA...VFR conditions with some breaks in the clouds this evening. Those breaks will fill in as cigs begin to lower again tonight with MVFR conditions expected to re-emerge overnight. There is some chance for cigs to lower down into IFR range early Wednesday morning, mainly between 14-17Z, however confidence is not quite there for TAF inclusion. South to southwest winds 5 to 10 kt will continue through the period. 62/18 && .MARINE... Broad high pressure will continue over the northeast Pacific with low pressure inland, maintaining strong northwesterly winds over the coastal waters, as well as steep, choppy seas up to 10-13 ft with a dominant period of 9 to 10 seconds. This will continue through tonight until winds and seas begin to ease during the day Wednesday. This will be due to a low pressure system forming and moving into the central B.C. coast with a weak frontal system that will move through the coastal waters on Thursday. High pressure will rebuild Friday into the weekend. Diurnal westerly pushes down the Strait of Juan de Fuca will continue through much of the week and into the weekend. Winds will be rather marginal with wind gusts up to 25 kt tonight, through stronger pushes are expected each day and going into the weekend for additional Small Craft Advisories likely. 62 && .FIRE WEATHER... Little in the way of fire weather concerns in the week ahead. Upper level troughing maintaining cool and cloudy conditions with high relative humidity values and a slight chance for showers along the coast and mountains on Thursday. Drier, sunnier, and more seasonable temperatures will begin Friday continuing into early next week. Low level onshore flow will moderate daytime minimum RH values and bring in good RH recovery each night. Felton/62 && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...Small Craft Advisory until 5 AM PDT Wednesday for Central U.S. Waters Strait Of Juan De Fuca-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory until 6 PM PDT Wednesday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm- Coastal Waters From James Island To Point Grenville 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm. && $$

746 FXUS66 KPQR 010555 AAA AFDPQR Area Forecast Discussion...UPDATED National Weather Service Portland OR 1054 PM PDT Tue Jun 30 2026 ...Updated aviation discussion... .SYNOPSIS...Cool onshore flow and persistent cloud cover will maintain below average temperatures over the area through Thursday with little change in the overall weather pattern. Conditions will be mainly dry aside from a few stray sprinkles, mainly over higher terrain. A gradual warming trend develops Friday into the holiday weekend with inland valleys likely warming above 80 degrees for the 4th of July into early next week (60-90% chance). && .DISCUSSION...Tuesday afternoon through Monday night...Very little change in weather conditions is expected through Thursday as upper level troughing remains in place over the Western US. Satellite imagery shows cloud cover blanketing NW OR and SW WA with little clearing expected due to increased onshore flow. High temperatures each day are forecast to be in the mid to upper 60s for inland valleys with 50s to low 60s elsewhere. Thursday will likely be slightly warmer with inland valleys into the low to mid 70s as temperatures aloft warm a few degrees, though if cloud cover remains fairly dense, observed high temperatures could end up lower than this. A few light showers or drizzle are possible each day, as well, mainly over the higher terrain. Confidence increases for a more noticeable warm-up Friday into the upcoming holiday weekend due to the arrival of weak upper level ridging and less cloud cover during peak heating hours. The NBM shows a 60-90% chance for highs above 80 degrees by the 4th of July through Monday for inland valleys south of Vancouver while the coast stays in the 60s. Probabilities for highs above 90 degrees this weekend remain at 1-10%, and the 90th percentile indicates the high end scenario for high temperatures is in the upper 80s for the weekend. This indicates abnormally hot conditions and heat- related impacts are unlikely to occur for the holiday weekend. -03/23 && .AVIATION...Satellite imagery and terminal observations as of late Tuesday evening depict widespread low-end VFR stratus spreading across northwest Oregon and southwest Washington. High confidence for low-end VFR CIGs across the area (3-5 kft) tonight, with increasing chances for high-end MVFR CIGs (2-3 kft) after 12z Wed. Guidance generally gives a 20-40% chance for MVFR CIGs for Willamette Valley terminals at any given hour between 12-18z Wed, and a 40-60% chance for coastal terminals. By 17-18z Wed, increased mixing will improve conditions back to VFR with CIGs gradually rising throughout the day. Winds light and under 5 kt tonight, turning northwesterly and increasing to 8-11 kt after 21z Wed-00z Thu. KPDX AND APPROACHES...Low-end VFR CIGs through early Wednesday morning with a 30-40% chance for high-end MVFR CIGs (2-3 kft) at any given hour between 12-18z Wed. Variable winds under 5 kt through the morning. Winds become northwesterly and increase to 6-10 kt after 21z Wed and last through the evening. -10 && .MARINE...Northwesterly swell through the next several days with steep seas of 8 to 10 ft at 9 seconds through early Wednesday morning. Possible isolated seas to 10 ft in the outer waters of PZZ271-272 past the Small Craft Advisory, however they are not expected to be widespread or long lasting. Winds and seas will ease significantly Wednesday afternoon and evening, with benign conditions expected Thursday and Friday. Seas are expected to range between 4 and 6 ft Wednesday night through the upcoming weekend, with north to northwest winds continuing. Northerly winds do increase in strength over the weekend as a typical summertime ridge sets in. We will see thermally drive winds in the afternoon and evening hours when gusts up to 20-25 kt are expected. -27/23 && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...Small Craft Advisory until 11 AM PDT Wednesday for PZZ251- 271>273. Small Craft Advisory until 2 AM PDT Wednesday for PZZ252-253. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

319 FXUS66 KMFR 010519 AFDMFR Area Forecast Discussion National Weather Service Medford OR 1019 PM PDT Tue Jun 30 2026 .DISCUSSION...Updated aviation discussion. && .AVIATION...01/06Z TAFs...Onshore flow will bring another night of low end VFR/MVFR stratus to areas west of the Cascades and north of the Siskiyous until 17-18z Wednesday. After clearing in the morning, another round of breezy to gusty winds is expected Wednesday afternoon, generally gusts 20-25 kt. -Spilde && .PREV DISCUSSION... /Issued 402 PM PDT Tue Jun 30 2026/ UPDATE...Aviation discussion updated. AVIATION...01/00Z TAFs...VFR conditions will prevail across the region through this evening. Expect widespread breezy to gusty N-NW winds (gusts 20-25 kt) for all TAF sites this afternoon and evening. Onshore flow will bring another night of low end VFR/MVFR stratus to areas west of the Cascades and north of the Siskiyous between 03z- 08z. After clearing in the morning, another round of breezy to gusty winds is expected Wednesday afternoon. PREV DISCUSSION... /Issued 207 PM PDT Tue Jun 30 2026/ KEY POINTS... * No impactful weather expected through the 4th of July holiday weekend. * Mild temperatures and enhanced afternoon breezes will continue through Thursday. Nightly return of clouds west of the Cascades will give way to sun in the afternoons. * No precipitation in the forecast. Afternoon cumulus buildups expected across northern California and East Side through Thursday...stray shower possible. * Temperatures trend warmer Friday into the weekend, peaking around 5 degrees above normal. * Sunday into early next week - pattern bears watching for potential thunderstorms and/or days where gusty winds combined with low RH could result in critical fire weather conditions. DISCUSSION...A broad trough will remain over the region through at least Thursday, possibly into early Friday. Friday will be a transition day as strong high pressure over the eastern CONUS weakens and begins expanding westward. Heights will build over the area on Friday as high pressure strengthens and establishes over the Desert SW through the weekend. Meanwhile, weak low pressure waves will continue to move into British Columbia, leaving the area under southwest flow Sunday into early next week. As broad troughing remains over the region through Thursday, the forecast will largely be a rinse/repeat scenario each day. Onshore flow will bring the return of stratus cover to areas west of the Cascades each night/morning, with clouds giving way to sun in the afternoons. High temperatures will hover around 5 to 10 degrees below normal, equating to upper 70s/low-mid 80s through Thursday. Expect some enhanced northwest breezes in the afternoons with gusts 20 to 25 mph. Overnight lows tonight could be chilly again, especially across northern Klamath/Lake Counties/Christmas Valley/Chemult region, and there could be patchy areas of frost where winds calm down overnight. Low temperatures will trend warmer for Thursday morning onward. No precipitation is in the forecast, but there is enough upper level moisture and weak instability for some cumulus buildups to be possible across northern California and east of the Cascades in the afternoons. A stray shower isn`t out of the question, but overall, we aren`t seeing any strong signals for showers/thunderstorms through the week and into the weekend. The pattern transitions on Friday as heights build over the region. We don`t expect impactful weather through the 4th of July weekend. Temperatures will trend warmer on Friday, actually reaching values typical for this time of year -- low-upper 80s. As high pressure expands westward, and establishes itself over the dessert SW by Monday, we`ll see an uptick trend in high temperatures. Temperatures will peak around 5 degrees above normal (upper 80s East /low 90s West), so we don`t expect any heat related impacts into early next week and we should get through most of the Holiday weekend with fairly benign weather. With southwest flow over the region and high pressure in the desert southwest, we`ll need to monitor the pattern for any days where thunderstorms could be possible. Currently it looks like the soonest that could be would be Sunday into early next week as some guidance shows the remnants of some tropical moisture getting swept into the mid-lattitudes. At this time, it looks like that moisture stays far enough south to not be a concern for our area, but it is a pattern worth watching for any changes. Additionally, with weak troughs passing through to the north, we`ll need to monitor for any days where gusty winds could line up with low daytime RHs and result in critical fire weather concerns. So just to summarize, at this point, there aren`t any days we could point to in particular where impactful weather is expected, but we will be heading into a pattern early next week that bears watching for potentially impactful weather. Stay tuned. /BR-y MARINE...Updated 200 PM PDT Tuesday, June 30, 2026...Strong north winds continue, resulting in very steep seas and isolated areas of gales from Gold Beach southward through Wednesday night. North of these areas, a combination of fresh swell and north winds will maintain steep seas through Wednesday night. Then, small craft advisory level conditions may last through later parts of this week, mainly across the southern waters. && .MFR WATCHES/WARNINGS/ADVISORIES... OR...CA...None. PACIFIC COASTAL WATERS...Small Craft Advisory until 5 AM PDT Thursday for PZZ350-356-370-376. Gale Warning until 5 AM PDT Thursday for PZZ356-376. && $$

142 FXUS66 KEKA 302057 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 157 PM PDT Tue Jun 30 2026 .KEY MESSAGES... - Gusty north winds each afternoon along the shore through mid week. - Hotter temperatures over the holiday weekend && .SYNOPSIS...Gusty north winds continue along shore through Wednesday. Seasonably warm to below average temperatures through Thursday before temperatures warm up Friday and through the holiday Weekend. && .DISCUSSION...A normal summer pattern will persist for the next week as ridging builds over the inter-mountain West and a trough settles over British Columbia. This will leave Northwest California settled in between resulting in modest fluctuations in high temperatures through early next week. The ridge will push toward the coast over the weekend allowing temperatures to warm from the 80s into the 90s in the interior valleys. At the coast northerly winds will be gusty each afternoon, strongest today and again Wednesday, but generally be on a down-trend from the very gusty conditions that occurred the last few days. Temperatures along the coast are expected to be seasonal with highs in the lower 60s for most areas throughout the week. As we head into next week, the trough is forecast to begin shifting east, nudging the warmest air back out of our region for at least a brief period. Temperatures this Saturday on July 4th are forecast to be around 60 at the coast and in the lower to mid 90s inland. Cloud cover may be more extensive along the coastline with moisture increasing in the boundary layer as the marine layer inversion strengthens due to the building ridge. Low stratus and fog may be a concern during the evening hours for coastal areas depending on the strength of the coastal winds and the mixing those winds can provide. /RPA && .AVIATION...VFR conditions are occurring over the entire region at this time. Gusty northerly winds this afternoon will decrease overnight for most terminals except at CEC where winds will likely remain elevated throughout the overnight period. There is potential for some stratus to re-form from approximately the Humboldt Bay areas south to along the Mendocino coast where IFR conditions could develop for several hours overnight into the early morning. Otherwise VFR is likely to prevail in other areas. /RPA && .MARINE...Northerly gales are now occurring in the outer waters with steep short period seas reported to as high as 14 feet at the Cape Mendocino buoy. The steep seas are also propagating into the inner waters zones. Thus gale warnings remain in place over the outer water and will remain in place through Wednesday night, while hazardous seas warnings have been issued for the inner zones with the steepest seas outside of 5 nm. Winds will diminish some Thursday and into Friday as a trough pushes surface high pressure over the eastern Pacific farther southwest of the area. This will result in a weakening of the pressure gradient and thus lighter winds and lower seas, but still very likely remaining within small craft criteria into the holiday weekend. /RPA && .EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Hazardous Seas Warning until 6 AM PDT Thursday for PZZ450- 455. Gale Warning until 6 AM PDT Thursday 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

188 FXUS66 KMTR 010451 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 951 PM PDT Tue Jun 30 2026 ...New AVIATION, MARINE... .KEY MESSAGES... Updated at 1207 PM PDT Tue Jun 30 2026 - Seasonably cool temperatures along with breezy afternoon winds through Thursday. - Gradual warming trend returns Friday and Saturday with overall pleasant holiday weekend weather. && .SHORT TERM... Issued at 1217 PM PDT Tue Jun 30 2026 (This evening through Wednesday night) GOES-West visible imagery reveals the marine stratus blanketing much of the Pacific Coast from Sonoma south all the way through Monterey Counties. Communities inland, away from the influence of the stratus, are enjoying the abundance of June solar this afternoon with overall pleasant weather conditions. Temperatures this afternoon will max-out in the upper 50s to near 70 along the immediate Pacific coast, and warming to the 70s to 80s inland. Far interior locations in Contra Costa and Monterey Counties will flirt with the 90-degree mark. With these forecast highs generally running a few to several degrees below late June climatology, the HeatRisk today is solidly low to minor (green to yellow). The main synoptic driver for the West Coast over the last several days has been a persistent long-wave trough that has sagged over the Rocky Mountains. This trough has brought unseasonably un- summerlike weather to parts of western North America. For us locally, the trough has helped reinforce the marine layer along the coast and as allowed for inland areas of California to remain comfortably cool for this time of year. The trough will hang around on Wednesday with similar temperatures for the coast while inland locations cool by a few more degrees. && .LONG TERM... Issued at 1217 PM PDT Tue Jun 30 2026 (Thursday through next Monday) The longwave trough will gradually weaken through second half of the week as zonal flow develops over the North Pacific. Temperatures will eventually respond to the rising heights with a gradual warming trend for central and northern California around Friday/Saturday. For those looking ahead to the holiday weekend, HeatRisk for the Bay Area and Central California Coast is forecast to remain low (green) along the immediate coast and minor (yellow) inland. Traveling for the holiday weekend? Even the typical heat-prone areas of California such as the Central Valley and deserts are only forecast to have minor (yellow) to moderate (orange) HeatRisk. Cluster analysis of the ensembles for next week are trying to pick-up on a West Coast ridge, but still observing many possible outcomes of varying strength and location. While the Climate Prediction Center does favor the likelihood of above- normal temperatures of us in the 8-14 day outlook (valid July 7-13), they do keep the slight risk of extreme heat to the east of the Bay Area, focusing on the Great Basin and Desert Southwest. && .AVIATION... (06Z TAFS) Issued at 950 PM PDT Tue Jun 30 2026 MVFR CIGs last along the coast and around the Monterey Bay. The breezy winds across the area will reduce into the night, becoming light to moderate. CIGs fall to IFR levels in the late night at MRY and along portions of the immediate coast, with some IFR CIGs forming at APC. Cloud cover erodes at APC in the mid morning with other sites seeing clearing in the late morning and early afternoon, leading to widespread VFR. Winds build again into Wednesday afternoon, but only to moderate to breezy levels. Vicinity of SFO...VFR through the TAF period. Breezy west winds reduce into the night, and become light by the early morning as scattered low clouds move through the area. Cloud cover thins into the mid morning as winds become more moderate. Expect winds to increase further in the mid afternoon, peaking around 16 kts before become light again into the night. Wednesday night stratus is expected to get close to SFO once again. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...MVFR CIGs continue to affect the terminals this evening. MRY CIGS looks to fall to IFR levels in the early morning as winds continue to reduce. CIGs erodes in the late morning and early afternoon around the Monterey Bay as moderate winds build. There is still some uncertainity on the clearing at the immediate coast, a repeat of Tuesday is still possible. && .MARINE... (Tonight through next Monday) Issued at 950 PM PDT Tue Jun 30 2026 Strong northerly winds continue for the northern outer waters while weaker, yet still gusty winds affect the rest of the waters. Frequent gale force gusts are expected across the northern outer waters through Wednesday, a bit weaker winds for Thursday and Friday. Moderate northerly to westerly breezes will prevail elsewhere. Rough to very rough seas will continue through Wednesday before abating to become moderate to rough Thursday into Friday. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...Small Craft Advisory until 3 AM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm. Small Craft Advisory until 9 AM PDT Wednesday for Pt Reyes to Pigeon Pt 0-10 nm. Gale Warning until 3 AM PDT Thursday for Pt Arena to Pt Reyes 10- 60 NM. && $$ SHORT TERM...Rowe LONG TERM....Rowe AVIATION...Kidwell 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

165 FXUS66 KOTX 010610 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 1110 PM PDT Tue Jun 30 2026 .KEY MESSAGES... - 15% chance for showers and thunderstorms along the Canadian border Wednesday afternoon. - Breezy winds through the Cascade Gaps each evening. - Warmer and drier for the end of the week into the holiday weekend. - Breezy winds Saturday afternoon and early evening. && .SYNOPSIS... There is a small risk for showers and thunderstorm across the northern mountains Wednesday. Cooler than normal conditions continue through Thursday with breezy conditons each evening in the Cascade gaps. Friday into the the holiday weekend, temperatures warm back into the 80s with dry conditions. Winds will be breezy across the region on Saturday. && .DISCUSSION... Tonight - Thursday: The Inland NW will remain under a baggy upper-level trough with periodic weak impulses pivoting through. Temperatures will start off cooler than 30-year averages and slowly moderate (1-2 degrees each day). This equates to high temperatures in the 70s for much of North Idaho and Northeastern WA to 80s from the Okanogan Valley to Wenatchee and across the lower Columbia Basin into the L-C Valley. The combination of surface heating and weak forcing with passing impulses will lead to passing clouds and mention for mountain showers (10-30% chance) along with a slight chance for thunderstorms (5-10%). The higher end of these probabilities will be along the Canadian border and just skirting southern Lewis County on the Camas Prairie. At this time, there is no mention of showers across the lowlands but this will need to be monitored as weak impulses in summer can have this effect and tend to be poorly modeled as with the case of the showers tracking through the Palouse this afternoon. Gusty conditions are anticipated through the Cascade Gaps each day in the late afternoon and evening. Humidity values will bottom out between 20-25% each afternoon around Vantage, Wenatchee, and Winthrop but look to come up as the winds increase 1600-1700 pdt each day. Nonetheless, any new fire starts have the potential for moderate spread given the lack of rainfall and elevated fire weather conditions. Winds across the Columbia Basin will be breezy at times with gusts of 15-20 mph. Friday-Sunday: The upper-level pattern begins to shift toward more of a westerly, zonal flow pattern. This will allow for a continued warming and drying trend region-wide. This will push temperatures closer to normal or even a few degrees above with highs in the 80s and a few of the warmer locations around Lewiston, Priest Rapids, Wenatchee, and Omak near 90F. Onshore flow will continue over Western WA keeping cooler air banked over the west slopes while Eastern WA and North Idaho warm up. Meanwhile, another shortwave will swing through BC with moderate pressure falls over southwestern Alberta. This pattern is conducive to breezy to locally gusty winds and is being advertised in the models with winds increasing slightly Friday and further Saturday. At this time, Saturday looks has the potential to deliver the strongest winds of this period with sustained winds of 10-20 mph and gusts between 20-30 mph. The west to southwest winds will peak in the afternoon and early evening with lighter speeds heading into the overnight periods. This will undoubtedly lead to elevated fire weather conditions on Saturday afternoon but there is low confidence that we will reach critical levels. Areas that have my attention for strong candidates will be the Waterville Plateau, foothills of the Cascades (Wenatchee/Chelan), and foothills of the Blue Mountains where NBM is carrying 60-80% chance for sustained winds of 15 mph or stronger. Monday-Tuesday: Uncertainty in the forecast increases as a deeper low sags south from the Gulf of AK and a ridge of high pressure and associated heat builds northward from the Desert Southwest. The models are struggling to where these features set up. Roughly 30% of the guidance keeps the low offshore and allow the heat into the Inland NW; 30% bring the low closer the coast and keep the heat at bay to the south; the remaining members are a bit more spread out with the low crossing through or not existent. The variance can also be correlated to the timing of these differences (does the low skirt through Monday, Tuesday, or Wednesday). Seems a majority of the members (75%) support this idea suggesting the heat will be short-lived but hard to hang your hat on any solution given this spread. Generally speaking, the pattern is not supporting of precipitation but would be for bouts of winds which will need to be monitored closely. /sb && .AVIATION... 06Z TAFs: VFR conditions are forecast for all TAF sites through 06z Thursday. Drier air is moving into the region although residual boundary layer moisture over NE WA/ID Panhandle and light winds may allow for patchy fog to develop between 9z-14z over some of the northern mountain valleys such as Colville, Sandpoint, and Bonners Ferry. A continued deep marine layer into the Cascades will contribute to breezy winds at KEAT with northwest winds gusting to 20-25 kts through 08z this evening, and again after 00z Thursday. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence for VFR conditions for all TAF sites. JW ----------------------- 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 49 75 49 76 51 80 / 0 0 0 0 0 0 Coeur d`Alene 50 74 49 75 53 79 / 0 0 0 0 0 0 Pullman 43 71 44 74 48 77 / 0 0 0 0 0 0 Lewiston 53 79 53 82 57 86 / 0 0 0 0 0 0 Colville 44 75 44 77 47 80 / 10 10 0 0 0 0 Sandpoint 48 72 47 74 50 77 / 10 0 0 0 0 0 Kellogg 48 72 48 74 50 76 / 0 0 0 0 0 0 Moses Lake 48 80 49 81 52 86 / 0 0 0 0 0 0 Wenatchee 54 80 55 81 58 85 / 0 0 0 0 0 0 Omak 52 80 52 81 54 85 / 10 0 0 0 0 0 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$

405 FXUS66 KPDT 010528 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 1028 PM PDT Tue Jun 30 2026 .KEY MESSAGES... - Cool and breezy conditions through the midweek. - Warming trend returns above normal high temperatures Friday. - Heat and low humidities peak Saturday through Monday. && .DISCUSSION... Current radar and infrared satellite imagery shows a broken line of showers extending across Union and Wallowa counties under mostly clear to partly cloudy skies. This is in response to a weak upper level shortwave slowly passing through the region, which will lead to the potential for isolated thunderstorms over these areas through the afternoon and early evening. The Storm Prediction Center has placed Wallowa county in their general thunderstorms (0 out of 5) category for the day, highlighting the likelihood of sub-severe storms. Precipitable water values are between 0.75-0.9" or 140-160% above normal, so any storm cells that do develop should include a wetting rain (>0.10"). This shortwave feature has also attributed to a pressure gradient developing along the Cascades to bring breezy winds across the Lower Columbia Basin/Gorge, east slopes of the Cascades, and the Kittitas Valley. Sustained west winds of 20-27 mph with gusts of 30-35 mph are expected in these areas, but the NBM does suggest there to be a 25-45% chance of advisory level wind gusts (+45 mph) for the Dalles and Ellensburg areas - peaking around 5 PM. This will continue to be monitored through the afternoon in case an advisory is needed. A second upper level shortwave passes through the area Wednesday, broadening out the upper level trough and leading to another breezy day across the Lower Columbia Basin, Simcoe Highlands, Eastern Gorge, and Kittitas Valley with similar sustained winds and gusts as today. This broadening of the overall trough feature that is draped across the Pacific Northwest will again be stretched late Thursday as yet another shortwave moves into the region. This third shortwave will lead to flow aloft turning from the northwest to the west to intensify the gradual warming trend experienced earlier in the week. As a result, high temperatures will be near to above normal Friday before becoming above normal through the weekend with highs in the low to mid-90s across the Lower Columbia Basin. A building upper level ridge across the Desert Southwest, and surface high pressure to our east will stall a cold front across Central WA/OR over the weekend which will further enhance warming and drying. Afternoon humidities will drop into the single digits over portions of Central Oregon, and in the low to mid-teens across the Lower Columbia Basin on Saturday. Very slight improvement is expected through Monday, but overnight humidity recoveries will continue to decrease and eventually reach values between 35-55% by Tuesday morning. 75 && .AVIATION /06Z TAFS THROUGH 06Z THURSDAY/...VFR conditions to prevail through the period. Breezy winds (15-25kts with gusts up to 35kts) will continue at site DLS through the period. Winds will become light at sites PDT?YKM in the next couple hours, but will increase to 12-17kts with gusts up to 21kts tomorrow. Otherwise, light winds will prevail at all other sites, with periodic gusts up to 19kts between 22Z and 03Z at sites RDM/BDN. Lawhorn/82 && .Preliminary Point Temps/PoPs... PDT 44 76 46 80 / 0 0 0 0 ALW 51 77 52 81 / 0 0 0 0 PSC 49 81 51 83 / 0 0 0 0 YKM 49 82 51 83 / 0 0 0 0 HRI 47 79 49 82 / 0 0 0 0 ELN 45 74 47 77 / 0 0 0 0 RDM 34 75 38 80 / 0 0 0 0 LGD 43 76 45 81 / 0 0 0 0 GCD 40 78 43 83 / 0 0 0 0 DLS 50 74 52 79 / 0 0 0 0 && .PDT WATCHES/WARNINGS/ADVISORIES... WA...None. OR...None. && $$ DISCUSSION...75 AVIATION...82

215 FXUS65 KREV 301916 AFDREV Area Forecast Discussion National Weather Service Reno NV 1216 PM PDT Tue Jun 30 2026 .KEY MESSAGES... * Cooler conditions remain in place with a gradual warming trend through the week, reaching near normal temps by the holiday weekend. * Typical afternoon breezes along with dry conditions -- stay fire safe. * There`s a 10% chance for afternoon showers or a thunderstorm to form from this weekend into next week. && .DISCUSSION... * We`re still running about 10 degrees below normal in the wake of the cold trough that settled over the region, but a gradual warming trend through the week will continue. Expect highs today in the low to mid 80s in warmer valleys, and in the 70s for Sierra valleys. By the 4th of July weekend, these will climb about 10 degrees, closer to normal for this time of the year. * Winds overall will be diurnally driven, with the usual afternoon westerly breezes gusting 20-25 mph. While not an enhanced fire risk, the very dry brush can easily ignite and quickly spread with the wind, so continue to be cautious and not do anything that could create a spark as we go through the holiday weekend. In addition, if you plan to recreate on area lakes, be prepared for winds to increase each day between 2 and 4 pm. * Overall, conditions will remain dry, with decreasing humidity recoveries. Despite this, there may be just enough instability through surface heating for isolated showers and even a stray thunderstorm to form (a 10% chance) from Sunday into next week. The most likely locations would be along the Sierra, marching northward along the western Nevada Sierra front, including the Pine Nut Mountain Range. -Dawn && .AVIATION... No major aviation concerns with widespread VFR conditions and SW FL100 winds around 15 kts. Typical westerly afternoon winds will increase between 21-23z at terminal sites with gusts reaching up to 20 kts. There is less than a 5% chance for any showers or storms to develop today or Wednesday. -Dawn && .REV Watches/Warnings/Advisories... NV...None. CA...None. && $$

779 FXUS66 KSTO 301918 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 1218 PM PDT Tue Jun 30 2026 .KEY MESSAGES... - Cooler temperatures through Thursday, with warmer and more seasonable temperatures by July 4th Weekend accompanied by continued onshore flow. && .DISCUSSION... Clear skies and seasonable temperatures are being observed across interior NorCal this afternoon. Upper level troughing will remain in place through the middle of this week prompting slight enhancement of onshore flow and lowering of high temperatures through Thursday. By the weekend, upper level troughing breaks down slightly as high pressure builds in the Pacific and in the desert southwest. High temperatures trend higher, returning to seasonable normals Friday and through the July 4th Holiday weekend. Triple digit highs are in the forecast for the northern Sacramento Valley on July 4th, however the recent relatively cooler temperatures and overnight lows in the upper 50s to mid 60s will keep Minor HeatRisk in the forecast the next 7 days. && .AVIATION... VFR conditions are expected over the next 24 hours. Southwest winds gusts 20 to 25 kts in the Delta and over the Sierra Crest. South to southwest winds in the Sacramento Valley (northwest in the northern SJ Valley) with gusts 10 to 20 kts from 21Z-06Z then lowering to less than 12 kts. && .STO WATCHES/WARNINGS/ADVISORIES... None. && $$

740 FXUS65 KMSO 301900 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 100 PM MDT Tue Jun 30 2026 .DISCUSSION... KEY MESSAGES: - Scattered showers and thunderstorms are ongoing this afternoon and into tonight. - Expect daily showers and thunderstorms for the rest of the week. - Daytime high temperatures increase through the upcoming holiday weekend. Satellite imagery early this afternoon indicates a closed low pressure system spinning over south-central Canada. To the west, another trough over southeast Alaska is accelerating northwesterly upper level flow against a broad trough of high pressure off the coast of California. The trough to the east is departing after delivering a healthy dose of summertime snow and rain to the Northern Rockies. Low pressure and residual moisture from the departing system will result in continuing showers and thunderstorms this afternoon, and again on Wednesday afternoon. Model soundings indicate weak instability and shear along with slightly-above-average precipitable water, bringing garden variety thunderstorms today (think pea size hail, brief heavy rain, gusty outflow winds of about 30 mph, lightning). Instability and shear increase on Wednesday as a shortwave trough moves through the Northern Rockies, allowing for some slightly stronger, albeit sub-severe, thunderstorms in the afternoon. The focus for convection will be primarily across north-central Idaho, southwest Montana, and along the Continental Divide. As the week develops, upper level flow becomes westerly and temperatures become seasonable by Friday. There will be enough moisture and instability to not rule out afternoon thunderstorms. By the holiday weekend, temperatures will be slightly above normal, mid to upper 80s in the valleys of western Montana, 90s in the lower Salmon and Clearwater valleys of Idaho. && .AVIATION...Lingering showers remain over northwest Montana including KGPI this afternoon. Elsewhere, mostly cloudy skies are what remains from a rather stormy weekend. High resolutions models indicate a round of thunderstorms moving southwest to northeast through north-central Idaho and across the Bitterroot and Missoula valleys this evening. Storms will move out by about midnight. Threats associated with these storms will be brief heavy rain, small hail, lightning, and gusty outflow winds to about 25 knots. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...None. ID...None. && $$

149 FXUS65 KBOI 010607 AFDBOI Area Forecast Discussion National Weather Service Boise ID 1207 AM MDT Wed Jul 1 2026 .UPDATE...Updated aviation discussion. && .KEY MESSAGES... - Isolated showers and thunderstorms are expected Tuesday and Wednesday afternoon and evening. - Isolated thunderstorms confined to the central Idaho mountains and near the Idaho-Nevada border Thursday and Friday, before drying out this weekend. - Steady warming trend throughout the week with dry conditions and temperatures near normal on the 4th of July. && .SHORT TERM /Through Friday Night/... Issued 219 AM MDT TUE JUN 30 2026 Early morning satellite imagery depicts broad troughing in place across the Northwest, with scattered areas of mid-level cloud cover present. Temperatures are generally running 2-5 degrees above readings yesterday morning, with this difference likely to continue into the daytime as a warming trend commences through the week. Moisture values are above-normal as well, as evidenced by surface dewpoints in the 40s and 50s throughout the Snake Plain. This moisture will favor the development of isolated showers and thunderstorms this afternoon as diurnal heating results in modest destabilization. Storm intensity will generally be limited by weak deep-layer shear, but brief gusty outflow winds up to 50 mph could accompany storms. The most widespread coverage will occur over the central Idaho mountains, while isolated convection will extend westward into eastern Oregon later this afternoon and evening. By Wednesday, a general eastward disposition in moisture will occur towards south-central Idaho, with the isolated thunderstorm threat generally confined to the central Idaho Mountains and near the Idaho- Nevada border. High temperatures in the 80s will also make a return in the Snake Plain. The thunderstorm threat trends down further on Thursday while temperatures tick up a few more degrees. && .LONG TERM /Saturday through Wednesday/... Issued 219 AM MDT TUE JUN 30 2026 A persistent and steady warming trend will define the second half of this week, as flow aloft weakens while heat expands across much of the western United States. Broad westerly flow aloft will feature a couple weak disturbances which will promote isolated showers and thunderstorms over the higher terrain of Idaho on Friday. However, most of the lower elevations in Idaho, and all of eastern Idaho, are expected to be dry on the 4th of July as a building ridge across the northern Great Basin reduces any potential for thunderstorms, despite sufficient moisture. The first 90 degree temperatures of the week are also expected on Saturday in many lower elevation areas, increasing to the mid-90s by Sunday. Isolated showers and thunderstorms return to the higher terrain Monday and Tuesday as southwest flow aloft strengthens again, but hot temperatures will continue. is && .AVIATION /06Z Wednesday through Thursday/... Issued 1207 AM MDT WED JUL 1 2026 VFR. Isolated showers/thunderstorms overnight into Wed/AM. Thunderstorms Wed/AM capable of 20-30 kt outflows. Isolated showers and thunderstorms continue Wed/PM, mainly over the ID W-Central mtns and near the ID/NV border. Thunderstorms Wed/PM capable of 30-35 kt outflows. Surface winds: light and variable overnight. Then W-NW 5- 15 kt Wed/PM. Winds aloft at 10kft MSL: Variable 5-10 kt. KBOI...VFR. Isolated showers Wed/AM, with a 30% chance of showers at the terminal before Wed/18z. A 15% chance of lightning between Wed/13-17z. Thunder capable of variable outflows to around 20kt. Surface winds: Light and variable overnight, then NW 7-12 kt Wed/PM. && && .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 AVIATION.....NF SHORT TERM...JR LONG TERM....JR

734 FXUS65 KLKN 301957 AFDLKN Area Forecast Discussion National Weather Service Elko NV 1257 PM PDT Tue Jun 30 2026 .KEY MESSAGES... * Isolated afternoon thunderstorms possible in Northeastern Elko County Wednesday through Friday * Elevated fire weather conditions in Central Nevada Thursday afternoon into Thursday evening * A warming trend through this week will sustain above average temperatures into July * Potential for HeatRisk in the area exists starting on Sunday && .DISCUSSION... (This evening through next Monday) WEATHER PATTERN OVERVIEW: Satellite imagery shows partly sunny skies across the area today, with some developing cumulus over the high terrain as an upper trough continues to sit above the area. Temperatures are in the 70s and overnight lows will be in the 40s. Temperatures tomorrow will be a few degrees warmer than today. A pair of shortwave troughs are expected to ride the broader trough through the area beginning tomorrow, bringing increased moisture and instability. Isolated convective development is anticipated for northern Elko county tomorrow afternoon as a result, with CAPE values around 200-400 J/kg. Precipitable water values are sitting around half an inch which usually indicates a dry thunder threat. Thursday looks to be in between shortwave impacts, resulting in a drier and much more marginal convective atmosphere, however the second shortwave passage on Friday is expected to increase moisture again with precipitable water values reaching 0.6-0.7 inches. Winds are also expected to increase in central Nevada on Thursday, with gusts 25-30 mph. Temperatures continue to climb through the week and especially increase this weekend as the trough finally gives way to a ridging pattern. High temperatures are expected to reach the low to mid 90s for the holiday weekend. An excessive heat threat remains possible, with moderate heat risk values mixing into northern Nevada for Sunday. Very warm temperatures are expected to continue to start next week, with high temperatures remaining in the low to mid 90s. FORECAST CONFIDENCE & DEVIATIONS: High confidence in warm temperatures through the weekend. Moderate confidence in convection on Wednesday, but low confidence for Thursday and Friday. Moderate confidence in calm weather after Friday. PoPs and thunder probabilities were increased slightly for Friday afternoon to better reflect convective potential. && .AVIATION...VFR conditions and winds under 10KT expected at all sites except KWMC and KEKO, where afternoon gusts around 18KT are expected for a few hours today. && .FIRE WEATHER...Quiet weather continues through Tuesday evening. Isolated thunderstorms are possible each afternoon Wednesday through Friday of this week for the northern half of fire weather zones 438/469/470. On Thursday antecedent low RH values combined with elevated southwest wind speeds of 15-20 mph and gusts of 25-30 mph for fire weather zones 425/426/427. No fire products are needed at the moment but conditions are worth monitoring in those locations. && .LKN Watches/Warnings/Advisories... None. && $$ DISCUSSION...94 AVIATION...94 FIRE WEATHER...99