279
FXUS65 KBOI 171951
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
ISSUED BY NATIONAL WEATHER SERVICE PENDLETON OR
151 PM MDT TUE MAR 17 2026
KEY MESSAGES
- BREEZY AFTERNOON WIND GUSTS NEAR THE MAGIC VALLEY TUESDAY.
- RECORD HIGH TEMPERATURES WEDNESDAY THROUGH SATURDAY WITH DRY
CONDITIONS.
SHORT TERM /THROUGH THURSDAY NIGHT/
AN UNSEASONABLY STRONG UPPER LEVEL RIDGE WILL CONTINUE TO
STRENGTHEN OVER THE SOUTHWEST UNITED STATES DURING THE SHORT
TERM. WHILE THE MOST EXTREME HEAT WILL BE OVER THE DESERT
SOUTHWEST, THIS WILL BRING SEVERAL DAYS OF RECORD HIGH TEMPERATURES
TO SOUTHEAST OR AND SOUTHWEST ID. TEMPERATURES WILL BE 20-25
DEGREES ABOVE NORMAL, WITH THE LOWEST VALLEYS SEEING LOW TO MID
80S AND THE MOUNTAINS REACHING THE 60S OVER THE NEXT SEVERAL
DAYS.
LONG TERM /FRIDAY THROUGH TUESDAY/
FRIDAY WILL REMAIN DRY AND WARM WITH RECORD TEMPERATURES
(AROUND 20 DEGREES ABOVE NORMAL). COME SATURDAY, THE RIDGE THAT
DOMINATED THE SHORT-TERM WILL BEGIN TO FLATTEN OUT. A SHORTWAVE
GRAZING OUR NORTHERN ZONES WILL SUPPORT A 20-50% CHANCE OF
PRECIPITATION IN THE WEST CENTRAL ID AND BOISE MOUNTAIN ZONES
SATURDAY. WHILE UNCERTAINTY REMAINS REGARDING THE EXACT
MAGNITUDE OF A COOL DOWN, ZONAL FLOW ALOFT WILL SUPPORT COOLING
TEMPERATURES (ALTHOUGH STILL 5-10 DEGREES ABOVE NORMAL) AND
BREEZY CONDITIONS. PRECIPITATION CHANCES WILL INCREASE AREA-WIDE
COME TUESDAY, AS A GULF OF ALASKA LOW BEGINS APPROACHING OUR
AREA. SNOW LEVELS WILL FLUCTUATE BETWEEN 5-8.5 KFT MSL IN THE
ZONAL FLOW, WITH THE LOWER SNOW LEVELS NORTH.
AVIATION /18Z TUESDAY THROUGH WEDNESDAY/
ISSUED 1109 AM MDT TUE MAR 17 2026
VFR UNDER SCATTERED HIGH CLOUDS. SURFACE WINDS: VARIABLE UP TO
12 KT EXCEPT W-NW 5-10 KT WITH GUSTS UP TO 20 KT NEAR KTWF/KJER
THIS AFTERNOON. WINDS ALOFT AT 10KFT MSL: W-NW 20-35 KT.
KBOI...VFR. WINDS LIGHT NW THIS AFTERNOON, BECOMING SE
OVERNIGHT.
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
SHORT TERM...KA
LONG TERM....NF
AVIATION.....NF
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