393
FXUS65 KBOI 061605
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
1005 AM MDT WED AUG 6 2025
DISCUSSION
WARM AND DRY CONDITIONS WILL CONTINUE TODAY WITH
BREEZY AFTERNOON WINDS AHEAD OF THE COLD FRONTAL PASSAGE
TOMORROW. WINDS WILL BE HIGHEST IN THE CAMAS PRAIRIE, CENTRAL ID
MOUNTAIN RIDGETOPS, AND LOWER SNAKE PLAIN WITH GUSTS UP TO 30
MPH THIS AFTERNOON. INCREASING MID LEVEL CLOUDS WITH A 5-10%
CHANCE OF SHOWERS WILL ACCOMPANY HIGHER WINDS TODAY. SMOKE FROM
NEARBY WILDFIRES WILL CREATE AREAS OF SMOKE ALOFT, MAINLY NEAR
THE NEVADA BORDER. A 15-25% CHANCE OF THUNDERSTORMS WITH THE
COLD FRONTAL PASSAGE TOMORROW WILL OCCUR OVER THE WEST CENTRAL
MOUNTAINS AND BAKER COUNTY. GUSTS AROUND 25-35 MPH WILL OCCUR
OVER THE REGION DURING THE PASSAGE, WITH THE HIGHEST GUSTS IN
THE OWYHEE MOUNTAINS AND BAKER VALLEY. NO UPDATES NECESSARY TO
THE FORECAST.
AVIATION
VFR. LIGHT SMOKE LAYERS. SURFACE WINDS: VARIABLE UP TO
10 KT, THEN SW-NW 5-15 KT WITH AFTERNOON GUSTS TO 15-25 KT. WINDS
ALOFT AT 10KFT MSL: SW 10-20 KT.
KBOI...VFR. SURFACE WINDS: SE OR VARIABLE LESS THAN 5 KT THIS
MORNING, THEN NW AFTER 06/16Z INCREASING TO 8-12 KT WITH GUSTS
AROUND 20 KT AFTER 06/21Z.
PREV DISCUSSION
SHORT TERM...TODAY THROUGH FRIDAY NIGHT...MOSTLY CLEAR SKIES
THIS MORNING, EXCEPT FOR LIGHT SMOKE LAYERS MAINLY OVER
W-CENTRAL AND S-CENTRAL IDAHO FROM NEARBY WILDFIRES. WARM,
SOUTHWEST FLOW ALOFT IS EXPECTED TODAY AHEAD OF AN APPROACHING
TROUGH, WITH TEMPERATURES RISING A FEW DEGREES WARMER THAN
PREVIOUS DAYS. THE TROUGH AND COLD FRONT ARE ANTICIPATED TONIGHT
THROUGH THURSDAY WHICH WILL BRING A CHANCE (15-25%) OF THURSDAY
AFTERNOON/EVE THUNDERSTORMS FOR THE NORTH, LOWER MAX TEMPERATURES
TO AROUND 10 DEGREES BELOW NORMAL, AND CREATE GUSTY WINDS AT
THE SURFACE FOR E OREGON AND SW IDAHO. THUNDERSTORMS WILL BE
CAPABLE OF LOCALIZED GUSTY OUTFLOW WINDS TO 25-35 MPH AND SMALL
HAIL FOR THU AFTERNOON/EVENING. SNOW LEVELS COULD BRIEFLY LOWER
TO 8000-8500 FT MSL FOR THE NORTH BY LATE THURSDAY NIGHT. BREEZY
WINDS AND SHOWER ACTIVITY WILL DECREASE AFTER THURSDAY, BUT
TEMPERATURES WILL REMAIN APPROX 10 DEGREES BELOW NORMAL AREA-
WIDE ON FRIDAY.
LONG TERM...SATURDAY THROUGH WEDNESDAY...BEGINNING THIS WEEKEND
INTO EARLY NEXT WEEK, THE UPPER FLOW WILL TRANSITION TO
NORTHWEST AS HIGH PRESSURE BUILDS TO THE SOUTH AND WEST OF THE
AREA. WEAK DISTURBANCES WILL RIPPLE THROUGH THE NW FLOW,
BRINGING OCCASIONAL BREEZY WINDS AND CLOUD COVER. HOWEVER,
TEMPERATURES WILL START TO CLIMB A FEW DEGREES EACH DAY, PEAKING
MONDAY/TUESDAY IN THE MID-90S FOR THE LOWER ELEVATIONS. BEYOND
TUESDAY, FORECAST CONFIDENCE DECREASES DUE TO LARGE DISAGREEMENTS
IN THE LONG RANGE MODELS.
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
DISCUSSION...SA
AVIATION.....BW
SHORT TERM...SH
LONG TERM....SH
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