Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
062 FXUS65 KBOI 242030 AFDBOI Area Forecast Discussion National Weather Service Boise ID 230 PM MDT Tue Sep 24 2024 .SHORT TERM...Tonight through Thursday night...No significant forecast changes. Upper ridge now over our CWA will shift eastward tonight as a Gulf of Alaska upper trough approaches the northwest coast. Wednesday will be the warmest day of the week under southwest flow aloft between the ridge and trough. Southwest surface winds will increase Wednesday in eastern Oregon, especially Harney County, as a Pacific cold front comes inland. Speeds 20 to 30 mph with gusts to 40 mph expected there. The front will pass through eastern OR Wednesday evening and western ID Wednesday night. Northern-most zones will have a 20-40 percent chance of showers and 10-20 percent chance of thunderstorms Wednesday night as the front moves through. Other zones will have only clouds. Winds will shift to moderate west/northwest as the front passes. Thursday will become sunny and about 8 degrees cooler than Wednesday, but still slightly above normal. Wednesday night looks clear and cool with light winds. .LONG TERM...Friday through Tuesday...General ridging will persist over the southwest, with the Pacific Northwest along the edge of stronger westerly flow aloft, keeping the region generally warm and dry throughout the period. A weak system may move through the region Sunday/Monday, but will likely be lacking in significant moisture, keeping precipitation chances low. Temperatures remain 5-10 degrees above normal throughout the weekend, with a gradual cooldown into early next week expected. && .AVIATION...VFR. Surface winds: SE 6-12 kt with a few gusts to 20 kt through 25/00Z. Gusty winds to 25kt possible after 25/18Z. Winds at 10kft MSL: South-southwest at 15-30 kt. KBOI...VFR. SE winds 10-15 kt gusting to 20 kt through 24/23Z. SE winds continue overnight around 10 kt. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...None. OR...None. && $$ www.weather.gov/Boise Interact with us via social media: www.facebook.com/NWSBoise www.twitter.com/NWSBoise SHORT TERM...LC LONG TERM....JR AVIATION.....JR