860
FXUS65 KBOI 041546
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
946 AM MDT WED JUN 4 2025
DISCUSSION
THE BEGINNING OF A WARMING TREND TODAY WITH LESS WIND AS THE
PRESSURE GRADIENT RELAXES. OTHER THAN SOME AFTERNOON CUMULUS
OVER THE HIGHER TERRAIN AND A FEW HIGH CLOUDS, SUNNY CONDITIONS
WILL PREVAIL. CURRENT FORECAST LOOKS ON TRACK.
AVIATION
VFR. CUMULUS DEVELOPMENT IN THE MOUNTAINS THIS AFTERNOON
WITH SOME VIRGA OR ISOLATED SHOWERS, BUT MOSTLY CLEAR OTHERWISE.
SURFACE WINDS: VARIABLE LESS THAN 10 KT THIS MORNING, BECOMING N-NW
5-10 KT THIS AFTERNOON. WINDS ALOFT AT 10KFT MSL: NW-NE 10-20 KT.
KBOI...VFR WITH MOSTLY CLEAR SKIES. SURFACE WINDS VARIABLE LESS THAN
8 KT THIS MORNING, BECOMING NW 5-10 KT THIS AFTERNOON.
PREV DISCUSSION
SHORT TERM...TODAY THROUGH FRIDAY NIGHT...OUR AREA WILL REMAIN
BETWEEN AN UPPER LEVEL TROUGH OVER THE NORTHERN US (INCLUDING A
A WEAK EXTENSION INTO THE GREAT BASIN) AND AN UPPER LEVEL RIDGE
OVER THE NORTHERN PACIFIC. THIS WILL KEEP OUR AREA IN LIGHT
NORTHWEST FLOW THROUGH THE SHORT TERM. WEAK TROUGHING OVERHEAD
WILL ALLOW FOR CUMULUS DEVELOPMENT AND VIRGA AND/OR ISOLATED
SHOWERS OVER THE MOUNTAINS EACH AFTERNOON, WHILE OTHER AREAS
REMAIN MOSTLY CLEAR. EVEN IN THE MOUNTAINS, PRECIPITATION
CHANCES WILL BE LESS THAN 10%. WINDS WILL BE LIGHTER THAN RECENT
DAYS WITH A LIGHT BREEZE EACH AFTERNOON. THE MAIN UPPER LEVEL
TROUGH WILL GRADUALLY MOVE EAST THROUGH FRIDAY, ALLOWING THE
PACIFIC RIDGE TO EXPAND INLAND. AS A RESULT, TEMPERATURES WILL
RISE BY SEVERAL DEGREES EACH DAY, REACHING AROUND 10 DEGREES
ABOVE NORMAL BY FRIDAY.
LONG TERM...SATURDAY THROUGH WEDNESDAY...THE AXIS OF THE UPPER
LEVEL RIDGE WILL MOVE INLAND THIS WEEKEND AND REMAIN OVERHEAD
INTO MONDAY. AS A RESULT, TEMPERATURES WILL CONTINUE TO CLIMB,
REACHING 15-20 DEGREES ABOVE NORMAL BY SUNDAY AND MONDAY, WITH
LOWER VALLEY HIGH TEMPERATURES WELL INTO THE 90S. ON MONDAY, A
WEAK TROUGH IS EXPECTED TO MOVE ONTO THE COAST AND SLOWLY
PROGRESS INLAND TUESDAY AND WEDNESDAY. THIS SHOULD BRING A
COOLING TREND, AND THERE WILL BE ENOUGH MOISTURE FOR A SLIGHT
(10-20%) CHANCE OF SHOWERS AND THUNDERSTORMS, WITH THE BEST
CHANCES IN THE HIGHER TERRAIN.
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...TL
AVIATION.....JY
SHORT TERM...ST
LONG TERM....ST
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