Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
793 FXUS65 KBOI 172027 AFDBOI Area Forecast Discussion National Weather Service Boise ID 227 PM MDT Tue Sep 17 2024 .SHORT TERM...Tonight through Thursday night...Scattered rain showers and isolated thunderstorms in Idaho will taper off this evening and end after midnight. The closed upper low responsible for the precipitation will move northeast into Montana tomorrow allowing for mostly dry weather to return to the area on Wednesday and Thursday. Temperatures will be a little warmer each day with more sunshine in the afternoons, but still running a few degrees below seasonal normals. An new upper level trough currently along the west coast will close off into an upper level low and move well south of the forecast area and is not expected to have much impact in southwestern Idaho or southeastern Oregon. .LONG TERM...Friday through Tuesday...Dry weather will continue through the upcoming weekend with zonal westerly upper level winds or a weak upper level ridge over the area at times. Model uncertainty increases into early next week, but most model runs favor dry and mild weather continuing with mild temperatures ranging from near normal to a few degrees below normal for this time of year. && .AVIATION...Mostly VFR. Areas of MVFR in showers and isolated thunderstorms, mainly in southwest Idaho through 18/06z. Gusts up to 30 kt with the stronger storms. Fog development likely in the mountain valleys tonight with a 90% chance at KMYL. Surface winds: W- NW 5-10 kt gusts to 25 kt in SE Oregon, becoming generally variable 5-10 kt overnight. Winds at 10kft: NE 10-20 kt becoming W-NW 20-30 kt after 18/00Z. KBOI...Mostly VFR. MVFR ceilings with showers through 08/00z...then dry. Stratus and fog development unlikely tonight (less then 10% chance). Surface winds: Generally NW 5 to 10 kts. && .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...JB LONG TERM....JB AVIATION.....JDS