803
FXUS65 KBOI 040556
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
1156 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
A RIDGE OF HIGH PRESSURE 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 /06Z TUESDAY THROUGH WEDNESDAY/
ISSUED 1150 PM MDT MON AUG 3 2026
REDUCED VISIBILITY DUE TO WILDFIRE SMOKE, WITH AREAS OF MVFR-IFR AND
MOUNTAIN OBSCURATION. SURFACE WINDS: VARIABLE UP TO 12 KT, EXCEPT NW
10-15 KT WITH GUSTS TO 20-25 KT BETWEEN KBKE-KONO THROUGH EARLY AM.
WINDS ALOFT AT 10KFT MSL: NW-W 5-20 KT.
KBOI...MVFR-IFR VISIBILITY WILL BE COMMON DUE TO WILDFIRE SMOKE.
TEMPORARY SLIGHT IMPROVEMENT DURING LATE AFTERNOON TUESDAY. SURFACE
WINDS: VARIABLE OR SOUTHERLY 3-6 KT OVERNIGHT, RETURNING TO NW 5-12
KT TUE AFTERNOON.
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.....CH
SHORT TERM...JM
LONG TERM....KA
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