350
FXUS65 KBOI 172322
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
ISSUED BY NATIONAL WEATHER SERVICE PENDLETON OR
522 PM MDT TUE MAR 17 2026
UPDATE
UPDATED AVIATION DISCUSSION.
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 /00Z WEDNESDAY THROUGH THURSDAY/
ISSUED 520 PM MDT TUE MAR 17 2026
VFR WITH MID/HIGH CLOUDS. SURFACE WINDS: SW-NW 5-15 KT,
OCCASIONAL GUSTS AROUND 20 KT. THEN, VARIABLE UP TO 10 KT AFTER
SUNSET. WINDS ALOFT AT 10KFT MSL: W 20-35 KT.
KBOI...VFR. SURFACE WINDS: NW 3-7 KT, BECOMING SE 4-10 KT AFTER
SUNSET.
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.....SH
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