Area Forecast Discussion
Issued by NWS Boise, ID
Issued by NWS Boise, ID
418 FXUS65 KBOI 181541 AFDBOI Area Forecast Discussion National Weather Service Boise ID 941 AM MDT Wed Sep 18 2024 .DISCUSSION...Patchy fog is reducing visibility in a few spots this morning and there are a few areas of lingering stratus clouds in the mountains. Otherwise...the forecast remains on track for mostly sunny skies, light winds and mild temperatures this afternoon across southwestern Idaho and southeastern Oregon. && .AVIATION...VFR in most areas of southwestern Idaho and southeastern Oregon with exception of isolated IFR in vicinity of KMYL, KEUL, KBNO due to patchy fog and low status through 18Z. Some mountain obscurations in stratus through 18Z...then VFR. Surface winds:W- NW 5-15 kt. Winds at 10kft: W-NW around 10 kt. KBOI...VFR. Surface winds less than 10 kt today. KBOI... && .PREV DISCUSSION... SHORT TERM...Today through Friday night...Weak troughing tied to an exiting low is supporting an extensive low-mid level cloud field over the region this morning. Any light showers over eastern Valley County will wrap up by late morning, though clouds will be slow to dissipate. A second low currently off the CA coast will continue southward today, passing by our region with clouds and a 10-15% chance of showers along the OR/NV border. With more sun today, most areas will run 4-8 degrees warmer than yesterday. Weak ridging under a drier northwest flow will build into the region Thursday and Friday warming temperatures to near normal. LONG TERM...Saturday through Wednesday...A dry west-northwest flow will remain over the area through the weekend keeping temperatures at or slightly below normal. Passage of an upper shortwave trough could increase clouds late Sunday into Monday but minimal precipitation chances remain north of the area. Models are indicating a warming trend next week as an upper ridge builds onto the coast. This would push temperatures above normal by Tuesday while keeping dry conditions in place. && .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...JB AVIATION.....JB SHORT TERM...DG LONG TERM....DG