Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
401 FXUS65 KBOI 262037 AFDBOI Area Forecast Discussion National Weather Service Boise ID 237 PM MDT Fri Jul 26 2024 .SHORT TERM...Tonight through Sunday night... An upper trough over the Pacific NW and northern Rockies will continue to bring near normal temperatures to the region through the weekend. A weak upper low off the California coast will get pulled northeast over Oregon and Idaho Saturday. Moisture is limited but there will be a chance (15-30%) of thunderstorms Saturday afternoon and evening near the Nevada border and over eastern portions of the Payette and Boise NF. Sunday looks dry across the forecast area. Breezy westerly winds Saturday and Sunday afternoon as a weak shortwave moves across northern Idaho. Smoke will continue to impact the region with southwest to west winds advecting smoke over the area from northern California fires in addition to our local fires over eastern Oregon and southwest Idaho. .LONG TERM...Monday through Friday... Next chance of precipitation (15-20%) will be Monday night/Tuesday generally north of a line from around Burns to McCall as another weak Pacific trough sweeps across the region. This will kick westerly winds up again for breezy conditions Monday and Tuesday. The great basin high is expected to rebuild late next week for a return to above normal temperatures Thursday and Friday with triple digit heat in the lower valleys. && .AVIATION...Widespread MVFR, local IFR, in smoke from wildfires. Surface winds: W-NW 5-15 kt, except up to 20 kt along northern NV border and w-central Idaho mtns through 27/04Z. Winds aloft at 10kft MSL: W-SW 10-20 kt. KBOI...Periods of MVFR in smoke through the weekend, with reductions to IFR possible. Northwest surface winds less than 15 kt. Weekend Outlook...Widespread wildfire smoke. Areas of MVFR and local IFR can be expected. Winds generally W-NW 5-15 kt with locally higher winds each afternoon across higher terrain and between KBKE and KONO Saturday evening where gusts to 30 kt are possible. A low chance of thunderstorms (15%) near the northern NV border and in the w-central ID mtns Saturday afternoon. && .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...TL LONG TERM....TL AVIATION.....DG