723
FXUS65 KBOI 071541
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
941 AM MDT MON JUL 7 2025
DISCUSSION
CLEAR SKIES WITH NEAR NORMAL TEMPERATURES AND
LIGHT WINDS ARE OCCURRING ACROSS MUCH THE REGION THIS MORNING.
ADDED A VERY LOW CHANCE (10% CHANCE) OF AFTERNOON SHOWERS AND
THUNDERSTORMS TO FAR WESTERN HARNEY COUNTY THIS MORNING, BUT
OTHERWISE FORECAST IS ON TRACK. VERY HOT TEMPERATURES ARE
EXPECTED TOMORROW, WITH MUCH OF THE TREASURE VALLEY REACHING OR
EXCEEDING 100F. ISOLATED SHOWERS AND THUNDERSTORMS WILL REACH
INTO THE NORTHWESTERN BORDERS OF OUR CWA ON TUESDAY, EXPANDING
ACROSS THE REGION THANKS TO A COLD FRONTAL PASSAGE ON WEDNESDAY.
NO UPDATES TO FORECAST OTHER HARNEY COUNTY SHOWER AND
THUNDERSTORM CHANCES.
AVIATION
VFR UNDER CLEAR SKIES. SURFACE WINDS: VARIABLE LESS THAN
10 KT. WINDS ALOFT AT 10KFT MSL: W-NW 5-15 KT.
KBOI...VFR. SURFACE WINDS: SE LESS THAN 6 KT, BECOMING W-NW 5-10 KT
THIS AFTERNOON.
PREV DISCUSSION
SHORT TERM...TODAY THROUGH WEDNESDAY NIGHT...ZONAL FLOW ALOFT
BECOMES SW LATER TODAY AS WE START TO HEAT UP AGAIN. TODAY'S
HIGHS WILL BE 3 TO 5 DEGREES ABOVE NORMAL, BUT TOMORROW WILL BE
AROUND 10 DEGREES ABOVE NORMAL! THAT MEANS TEMPS OVER 100 FOR
MOST OF THE LOWER ELEVATIONS (BELOW AROUND 3500 FT MSL). THE
FORECAST FOR TUE HAS SHOWN SOME "BOUNCE" THIS MORNING, JUMPING
UP ABOVE WHAT THE PREVIOUS FORECAST SHOWED. IF THE NEXT FORECAST
CONTINUES AT THIS HOTTER LEVEL, A HEAT WARNING OR ADVISORY MAY
BE NECESSARY FOR THE LOWER TREASURE VALLEY OF OREGON.
A SHORTWAVE WILL MOVE TOWARD THE REGION MONDAY THROUGH EARLY
WEDNESDAY, PASSING OVER THE REGION LATE WED AND WED NIGHT.
SHOWERS AND THUNDERSTORMS MAY DEVELOP (10-20% CHANCE) TUE
AFTERNOON OR EVENING AHEAD OF THIS SYSTEM AND ITS ASSOCIATED
COLD FRONT, WITH NORTHWESTERN AND NORTHERN PARTS OF THE CWA
FAVORED. THE FRONT WILL MOVE THROUGH TUE NIGHT INTO EARLY WED.
WINDS WILL INCREASE BEHIND THE FRONT WED AFTERNOON TO NORTHWEST
10-20 MPH, BUT OTHERWISE GENERALLY LIGHT WINDS ARE FORECAST
TODAY AND MOST OF TUESDAY. TEMPS ON WED DROP BACK DOWN TO JUST A
FEW DEGREES ABOVE NORMAL. AS THE TROUGH MOVES THROUGH LATE WED
INTO WED NIGHT, SHOWERS AND THUNDERSTORMS ARE AGAIN POSSIBLE
(10-20% CHANCE), THIS TIME OVER MUCH OF THE AREA.
LONG TERM...THURSDAY THROUGH MONDAY...THURSDAY WILL SEE A LONGWAVE
TROUGH STEERING NORTH OF THE AREA, BRINGING SLIGHT COOLING INTO THE
UPPER 80S FOR THE VALLEYS. NO PRECIPITATION IS EXPECTED FROM THIS
SYSTEM FOR SOUTHWEST ID AND SOUTHEAST OR. A STRONG HIGH PRESSURE
SYSTEM IS EXPECTED TO SLOWLY BUILD INTO CALIFORNIA AND THE FOUR
CORNERS REGION FRIDAY THROUGH MONDAY, RETURNING A WARMING AND DRYING
TREND AS IT EXPANDS INTO THE GREAT BASIN AND NORTHWEST REGIONS.
VALLEY DAYTIME TEMPERATURES ARE EXPECTED TO RETURN TO THE LOWER 90S
FRIDAY AND IN THE MID TO UPPER 90S SATURDAY THROUGH MONDAY.
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...SP
LONG TERM....JY
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