816
FXUS65 KBOI 030609
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
1209 AM MDT MON AUG 3 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- GUSTY WINDS THROUGH EARLY MORNING, ESPECIALLY AGAIN ALONG THE
I-84 CORRIDOR FROM BAKER CITY TO ONTARIO.
- THE HEAT RETURNS BY MIDWEEK WITH NEAR 100 DEGREE TEMPERATURES
LIKELY AT LOWER ELEVATIONS.
- SMOKY CONDITIONS CONTINUE THROUGH THE WEEK.
SHORT TERM /THROUGH WEDNESDAY NIGHT/
ISSUED 238 PM MDT SUN AUG 2 2026
A REINFORCING SHORTWAVE TROUGH WILL SWING THROUGH THE PAC NW
OVERNIGHT, BRINGING ANOTHER WIND PUSH THROUGH SE OREGON AND THE
SNAKE PLAIN OF SW IDAHO. SIMILAR TO LAST NIGHT, THE STRONGEST
WIND GUSTS (30-45 MPH) WILL IMPACT THE I-84 CORRIDOR FROM BAKER
CITY TO ONTARIO, INCLUDING PORTIONS OF WASHINGTON, PAYETTE,
CANYON AND MALHEUR COUNTIES. OTHERWISE EXPECT GUSTS 25-35 MPH
ACROSS SE OREGON AND FURTHER UP THE SNAKE PLAIN. MONDAY WILL SEE
BREEZY CONDITIONS CONTINUE ACROSS OPEN TERRAIN WITH
TEMPERATURES (LOWS AND HIGHS) RUNNING ABOUT 10 DEGREES BELOW
NORMAL. WINDS WILL BE STRONGEST ACROSS THE SNAKE PLAIN EAST OF
BOISE WHERE GUSTS WILL REACH 20-30 MPH. WINDS WEAKEN AND
TEMPERATURES TREND WARMER ON TUESDAY AS AN UPPER RIDGE BUILDS
ALONG THE COAST. AREAS NEAR/DOWNWIND OF LARGE FIRES WILL
CONTINUE TO DEAL WITH THICKER SMOKE THROUGH MONDAY MORNING. COME
MONDAY AFTERNOON A SHIFT TO A MORE NORTHERLY FLOW ALOFT WILL
BRING SMOKE INTO THE AREA FROM THE LARGE FIRES IN WA.
LONG TERM /THURSDAY THROUGH MONDAY/
ISSUED 238 PM MDT SUN AUG 2 2026
A RIDGE OF HIGH PRESSURE WILL REAMPLIFY OVER THE AREA STARTING
ON WEDNESDAY AND BRING WARMER CONDITIONS THROUGH THE WEEKEND.
TEMPERATURES WILL BE 5-10 DEGREES ABOVE NORMAL WITH LOWER
VALLEYS NEAR 100 DEGREES THURSDAY THROUGH SUNDAY. SMOKY
CONDITIONS WILL CONTINUE FROM AREA WILDFIRES. CONDITIONS WILL
REMAIN DRY AND BREEZY.
AVIATION /06Z MONDAY THROUGH TUESDAY/
ISSUED 1203 AM 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 WITH AREAS OF GUSTS
TO 15-25 KT THROUGH MONDAY. EXCEPT, NW GUSTS TO 30-40 KT BETWEEN
KBKE-KONO THROUGH EARLY AM. WINDS ALOFT AT 10KFT MSL: W 15-30 KT
BECOMING NW 5-15 KT AFTER MON/12Z.
KBOI...SMOKY, LOW VFR WITH MVFR AT TIMES THROUGH MONDAY. LIKELY
DEGRADING TO MVFR-IFR MONDAY EVENING. SURFACE WINDS: NW 5-15 KT.
AFTERNOON GUSTS AROUND 20 KT.
BOI WATCHES/WARNINGS/ADVISORIES
ID...AIR QUALITY ALERT UNTIL 2 PM MDT THIS AFTERNOON FOR IDZ011-012-
014-015-029-033.
OR...AIR QUALITY ALERT UNTIL 3 PM MDT /2 PM PDT/ THIS AFTERNOON 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...DG
LONG TERM....KA
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