Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
378 FXUS65 KBOI 141659 AFDBOI Area Forecast Discussion National Weather Service Boise ID 959 AM MST Fri Nov 14 2025 .DISCUSSION...A system that brought rain showers to much of the area overnight will exit to the east today. Showers have moved into the mountains, and will continue to decrease through the afternoon. An upper level ridge of high pressure will briefly build in tonight into Saturday with decreased cloud cover and mild temperatures. Lingering moisture will allow patchy fog to develop tonight. Highs will be 10-15 degrees above normal both today and Saturday. Winds will be locally breezy today, then lighter on Saturday as high pressure becomes established. No updates to the forecast this morning. && .AVIATION...Mostly VFR. MVFR/LIFR conditions this morning in fog and low ceilings in E-Oregon and ID west Central Mountains. Mtns obscured in fog/low ceilings. Fog and ceilings lifting through the morning with widespread VFR this afternoon. Rain showers tapering off this afternoon. Surface winds: SW 5-15 with gusts to 20-25 kt, except variable up to 10 kt in the Snake Plain. Winds aloft at 10kft MSL: SW 30-45 kt. KBOI...VFR. Skies clearing throughout the afternoon. Surface winds: Variable becoming NW under 10kt this afternoon. Weekend Outlook...Patchy fog Saturday morning, otherwise VFR. Increasing clouds late Saturday with showers developing Sunday morning, expect mountain obscuration Sunday. Snow levels around 7-8k ft MSL. Surface winds: Variable up to 10 kt Saturday, SW-SE 5-15 kt Sunday. && .PREV DISCUSSION... SHORT TERM...Today through Sunday night...An upper level trough is splitting off from the parent flow into southern CA later today. The northern portion of the system is bringing scattered showers to the area this morning. Showers will taper off later this morning with clearing by the afternoon, as the main jet stream lifts northward and the cutoff low remains near southern CA. Temperatures will remain mild with highs around 10-15 degrees above normal through Saturday. Temperatures in the Snake Plain will be in the low to mid 60s today and again on Saturday. The upper level trough over southern CA will move northward into the Great Basin on Sunday, with showers likely by Sunday afternoon. Snow levels remain around 7000-8000` with this system. LONG TERM...Monday through Friday...Forecast confidence is low in the extended period. Quite a change in the extended period with the models from previous runs. The latest projections weaken the trough over the Great Basin and bring another system down the West Coast into another cutoff low off the CA coast by Tuesday and Wednesday. This would bring drier and warmer conditions Tuesday through Thursday with upper level ridging over southwest ID and southeast OR. With this new solution, high temperatures could be 5-10 degrees warmer than the current forecast. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...None. OR...None. && $$ www.weather.gov/Boise Interact with us via social media: www.facebook.com/NWSBoise www.x.com/NWSBoise DISCUSSION...ST AVIATION.....NF SHORT TERM...KA LONG TERM....KA