455
FXUS65 KBOI 032317
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
517 PM MDT MON AUG 3 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- SMOKY CONDITIONS CONTINUE THROUGH THE WEEK.
- WARMING THIS WEEK BRINGS TEMPERATURES ABOVE 100 DEGREES BY
THURSDAY.
- INCREASED WINDS FRIDAY THROUGH THE WEEKEND.
SHORT TERM /THROUGH WEDNESDAY NIGHT/
ISSUED 214 PM MDT MON AUG 3 2026
WINDS TODAY AND TOMORROW AFTERNOON REMAIN BREEZY IN SOUTH-
CENTRAL IDAHO BEFORE WEAKENING IN THE MIDWEEK. HIGH PRESSURE
BUILDING OVER THE SOUTHWESTERN US WILL BRING A STEADY WARMING
TREND THROUGH THE SHORT TERM. TEMPERATURES CLIMB FROM 5 DEGREES
BELOW NORMAL TO 5-10 DEGREES ABOVE NORMAL BY THE END OF THE
SHORT TERM. NORTHWEST FLOW ALOFT IS CARRYING ELEVATED SMOKE FROM
WASHINGTON AND NORTHEAST OREGON INTO PARTS OF OUR FORECAST AREA
TONIGHT. COMBINED WITH SMOKE FROM THE TARTAR FIRE, MUCH OF SE
OREGON AND SW IDAHO IS FORECAST TO SEE DEGRADED AIR QUALITY AND
VISIBILITY THROUGH THE WEEK.
LONG TERM /THURSDAY THROUGH MONDAY/
ISSUED 214 PM MDT MON AUG 3 2026
WILL REAMPLIFY OVER THE AREA AND BRING WARMER CONDITIONS.
TEMPERATURES WILL BE 5-10 DEGREES ABOVE NORMAL WITH LOWER VALLEYS
NEAR 100 DEGREES THURSDAY THROUGH SATURDAY. SMOKY CONDITIONS WILL
CONTINUE FROM AREA WILDFIRES WHICH MAY KEEP TEMPERATURES SLIGHTLY
COOLER THAN FORECAST. CONDITIONS WILL REMAIN DRY AND BREEZY.
AVIATION /00Z TUESDAY THROUGH WEDNESDAY/
ISSUED 515 PM MDT MON AUG 3 2026
REDUCED VISIBILITY DUE TO WILDFIRE SMOKE, WITH AREAS OF MVFR-IFR AND
MOUNTAIN OBSCURATION. SURFACE WINDS: W-N 5-15 KT, THEN VARIABLE
UP TO 12 KT OVERNIGHT. EXCEPT NW 10-15 KT WITH GUSTS TO 20-25
KT BETWEEN KBKE-KONO LATE EVENING THROUGH EARLY AM. WINDS ALOFT
AT 10KFT MSL: NW-W 5-20 KT.
KBOI...LOW VFR VISIBILITY FROM SMOKE, EXPECTED TO DEGRADE TO
MVFR-IFR AFTER TUE/02Z. SURFACE WINDS: NW 6-12 KT. EVENING
GUSTS AROUND 20 KT. THEN, VARIABLE OR SOUTHERLY 3-6 KT
AFTER SUNSET.
BOI WATCHES/WARNINGS/ADVISORIES
ID...AIR QUALITY ALERT UNTIL 2 PM MDT FRIDAY FOR IDZ011>015-028-029-
033.
OR...AIR QUALITY ALERT UNTIL 1 PM MDT /NOON PDT/ TUESDAY FOR
ORZ061>064.
WWW.WEATHER.GOV/BOISE
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSBOISE
WWW.X.COM/NWSBOISE
AVIATION.....SH
SHORT TERM...JM
LONG TERM....KA
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