Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
538 FXUS65 KBOI 210304 AFDBOI Area Forecast Discussion National Weather Service Boise ID 904 PM MDT Fri Sep 20 2024 .DISCUSSION...Northwest flow aloft will continue through Saturday for dry conditions, along with slightly below normal temperatures and light winds. No updates. && .AVIATION...VFR with scattered high clouds. Surface winds: Light mainly northwest to 10 kt. Winds at 10kft: N 5-15 kt. KBOI...VFR. Light northwest winds to 10 kt. Sunday Outlook...VFR with scattered high clouds. Light and variable surface winds less than 10 kt. && .PREV DISCUSSION... 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. && .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 DISCUSSION...BW AVIATION.....BW SHORT TERM...LC LONG TERM....JM