099
FXUS65 KBOI 031023
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
423 AM MDT SUN AUG 3 2025
SHORT TERM...TODAY THROUGH TUESDAY NIGHT
A TROUGH OFF THE
PACIFIC NW COAST WILL MOVE INLAND TODAY. EXPECT INCREASING
CLOUDS WITH SHOWERS AND THUNDERSTORMS DEVELOPING IN EASTERN OR
BY MIDDAY. UPPER LEVEL DYNAMICS ARE FAVORABLE FOR STRONG TO
SEVERE STORMS TODAY ALONG THE COLD FRONT, ESPECIALLY IN EASTERN
OR. PLENTY OF BULK SHEAR AND INVERTED-V PROFILES SUPPORT SEVERE
WINDS UP TO 65 MPH AND HAIL UP TO AN INCH. AS THE STORMS EVOLVE
WITH THE COLD FRONT, A COLD POOL WILL ACCELERATE DOWN THE SNAKE
BASIN, WITH WIND GUSTS OF 40-60 MPH POSSIBLE AND BLOWING DUST
ALONG THE FRONT. BLOWING DUST WILL BE A CONCERN WITH THESE
WINDS AS THEY TRACK EAST THROUGH THE SNAKE PLAIN. WINDS BEHIND
THE FRONT SUBSIDE AFTER MIDNIGHT ON MONDAY MORNING. THE TROUGH
MOVES OVERHEAD ON MONDAY WITH COOLER CONDITIONS. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS, WILL BE CONFINED NORTH OF A
LINE FROM BURNS TO ONTARIO TO MCCALL, WITH DRY AND BREEZY
CONDITIONS SOUTH. THE SYSTEM MOVES EAST ON MONDAY NIGHT, WITH
DRY CONDITIONS ON TUESDAY. TEMPERATURES WILL BE AROUND 2 TO 4
DEGREES BELOW NORMAL SUNDAY, BEFORE LOWERING TO AROUND 5-10
DEGREES BELOW NORMAL ON MONDAY, AND WARMING AGAIN TO AROUND 2 TO
4 DEGREES BELOW NORMAL TUESDAY.
LONG TERM...WEDNESDAY THROUGH SUNDAY
ON WEDNESDAY, WARMER
WEST-SOUTHWEST FLOW ALOFT WILL DEVELOP AHEAD OF THE NEXT
PACIFIC TROUGH. MOISTURE WILL BE LIMITED THIS FAR SOUTH, KEEPING
PRECIPITATION CHANCES LOW (10% OR LESS) AHEAD OF THE TROUGH ON
WEDNESDAY. THE TROUGH AND COLD FRONT ARE FORECAST TO ARRIVE LATE
WEDNESDAY THROUGH MID-THURSDAY, PROMOTING CLOUD COVER AND A
SLIGHT CHANCE (20%) OF SHOWERS AND THUNDERSTORMS FOR NORTHEAST
OREGON AND WEST-CENTRAL IDAHO. GUSTY WEST/NORTHWEST WINDS AND
COOLER MAX TEMPS CAN BE EXPECTED THURSDAY AFTERNOON BEHIND THE
FRONT. DRIER, NORTHWEST FLOW ALOFT WILL FOLLOW FOR FRIDAY
THROUGH THE WEEKEND, KEEPING TEMPERATURES A FEW DEGREES BELOW
NORMAL.
AVIATION
GENERALLY VFR, EXCEPT SCATTERED PM SHOWERS AND
THUNDERSTORMS FOR EAST OREGON AND CENTRAL IDAHO. THUNDERSTORMS
CAPABLE OF 30-45 KT OUTFLOWS, HAIL, AND HEAVY RAIN RESULTING IN
LOCALIZED MVFR TO LIFR CONDITIONS. BLOWING DUST POSSIBLE WITH
GUSTS. MTNS OBSCURED IN PRECIP, AND IN VICINITY OF WILDFIRES.
SURFACE WINDS OUTSIDE OF STORMS: VARIABLE 5-15 KT, EXCEPT STRONG
NW FRONTAL WINDS (25-45 KT) AND POTENTIAL FOR LLWS IN THE
EVENING. WINDS ALOFT AT 10KFT MSL: S TO SW 10-20 KT.
KBOI...GENERALLY VFR. A 25% CHANCE OF PM SHOWERS AND
THUNDERSTORMS, MAINLY BETWEEN 04/00Z-04Z. STORMS AT/NEAR KBOI
WILL BE CAPABLE OF 30- 45 KT GUSTS, HEAVY RAIN, HAIL, AND
BLOWING DUST, WHICH MAY DEGRADE VISIBILITY. SURFACE WINDS: SE OR
VARIABLE AROUND 5 KT, THEN NW-N 5- 15 KT LATE AFTERNOON OUTSIDE
OF STORM OUTFLOWS. COLD FRONT BETWEEN 04/01Z-05Z, WITH NW GUSTS
TO 25-40 KT POSSIBLE.
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....SH
AVIATION.....SH
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