Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
573 FXUS65 KBOI 202023 AFDBOI Area Forecast Discussion National Weather Service Boise ID 223 PM MDT Fri Sep 20 2024 .SHORT TERM...Tonight through Sunday night...Little change through Sunday although less breezy Saturday afternoon as northwest winds aloft decrease. An upper trough from the Gulf of Alaska will bring middle and high clouds Sunday night, and enough northwest surface wind to hinder formation of the usual nighttime inversion. Min temps Sunday night should therefore be several degrees warmer than on Saturday night. .LONG TERM...Monday through Friday...GFS and ECMWF shift Sunday night`s trough to our east on Monday with only some cloudiness and little change in daytime temps. Tuesday and Wednesday will be sunny and warmer as a Pacific upper ridge builds inland behind the exiting trough. The ridge will shift rapidly east Wednesday and the next Gulf of Alaska trough will bring a dry cold front with clouds and breezy winds Wednesday night, followed by slightly cooler temps Thursday. Friday looks breezy and mild but still dry under strong westerly flow aloft. && .AVIATION...VFR with high clouds. Surface winds: NW 5-15 kt with local gusts to 20 kt this evening. Winds at 10kft: W-NW 10-15 kt. KBOI...VFR. Surface winds NW through Saturday, with brief periods of gustiness each afternoon/evening. Weekend Outlook...VFR with scattered high clouds. Afternoon surface winds W-NW 5 to 15 kt. Winds aloft NW 15 to 20 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....JM AVIATION.....JM