Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
140 FXUS65 KBOI 192019 AFDBOI Area Forecast Discussion National Weather Service Boise ID 219 PM MDT Thu Sep 19 2024 .SHORT TERM...Tonight through Saturday night...A closed low working through the Desert SW will support afternoon clouds and possibly a shower along the ID/NV border today. Dewpoint depressions in mtn valleys will approach 0 tonight, bringing another shot of patchy valley fog. Otherwise mostly clear skies and seasonable temperatures will prevail into the weekend. An uptick in W-NW flow aloft Friday and Saturday will bring increased winds to open terrain (gusts to 25 mph in spots) each afternoon and evening. .LONG TERM...Sunday through Thursday...Dry conditions continue into next week. Sunday night and Monday morning cloud cover briefly increases as a trough passes north of our area. Following the trough an upper ridge is set to build in. This will push temperatures 5-10 degrees above normal next week. The ridge moves east on Thursday and model agreement diverges, with the mean continuing to favor warm and dry weather. && .AVIATION...VFR and partly cloudy. Isolated showers south of the ID- NV border this afternoon. Patchy fog expected to redevelop in mtn valleys tonight, though less confidence than this morning. Surface winds: less than 10kt. Winds at 10kft: variable 5-10 kt. KBOI...VFR and partly cloudy. Surface winds less than 10 kt. Weekend Outlook...VFR with periods of high clouds. Afternoon surface winds W-NW 5 to 15 kt. W-NW gusts up to 25 kt Friday evening in the Snake Plain. Winds aloft W-NW 10 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...JM LONG TERM....JM AVIATION.....JM