Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
233 FXUS65 KBOI 260300 AFDBOI Area Forecast Discussion National Weather Service Boise ID 900 PM MDT Wed Sep 25 2024 .DISCUSSION...A mostly dry cold front (with the exception of scattered light rain showers from Baker City to McCall) has entered SW Idaho this evening and will continue to progress eastward overnight. The strongest gusts have been from Ontario to Baker City, but expect gusts to around 30 mph as it moves across SW Idaho overnight and then subside by early Thursday morning. A dry westerly flow aloft follows on Thursday, along with cooler temperatures and generally light winds. No updates. && .AVIATION...VFR. Cold front will continue to move across SW ID tonight. Scattered -SHRA north of KBKE-KMYL overnight. Surface winds: S-SW 5-15 kt shifting to the NW with gusts to 25 kt behind the front. KBOI...VFR. Scattered mid-level clouds. Surface wind S 5-15 kt, shifting to NW 03Z-04Z behind a cold front. && .PREV DISCUSSION... SHORT TERM...Tonight through Friday night...Pacific cold front now inland over the Cascades as of 2 PM MDT. Ahead of it are gusty southwest winds in eastern Oregon, especially in Harney County. The front will pass through eastern Oregon this evening and western Idaho late tonight, weakening as it moves. Front will still be strong enough for scattered showers and isolated thunderstorms in northern Baker County this evening, then scattered showers but no thunderstorms in northern Valley County/ID overnight. Sunny Thursday and about 8 degrees cooler than today, with light west/northwest winds. Sunny and several degrees warmer Friday as a 500 mb high gradually builds northward from the Great Basin. LONG TERM...Saturday through Wednesday...Warming will peak Saturday under southwest flow aloft between the Great Basin high and the next upper trough from the north Pacific. A dry cold front will lower temps 5 to 10 degrees Sunday followed by breezy west/northwest winds. After the upper trough moves east Sunday night another warming trend with clear skies will begin under a broad upper ridge over the western states. && .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....LC