581
FXUS65 KBOI 101749
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
1149 AM MDT WED JUN 10 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- COLD MORNING LOW TEMPERATURES TODAY AND THURSDAY, WITH LIGHT
SNOW ABOVE 5500 FEET IN THE WEST CENTRAL MOUNTAINS THIS
MORNING.
- WEST/NORTHWEST WINDS 25 TO 35 MPH WITH GUSTS 45 TO 55 MPH IN
SOUTH-CENTRAL IDAHO THIS AFTERNOON AND EARLY EVENING.
- ISOLATED SHOWERS AND THUNDERSTORMS IN THE CENTRAL IDAHO
MOUNTAINS THIS AFTERNOON.
- DRY AND GRADUALLY WARMER THURSDAY AND FRIDAY, LEVELING OFF
SATURDAY AND SUNDAY, THEN WARMER AGAIN MONDAY.
SHORT TERM /THROUGH FRIDAY NIGHT/
ISSUED 255 AM MDT WED JUN 10 2026
AN UPPER TROUGH, CONTAINING TWO SHORT WAVE TROUGHS, CONTINUES
OVER THE NORTHERN INTERMOUNTAIN REGION. THE FIRST SHORT WAVE
TROUGH MOVED EAST OF OUR CWA LATE TUESDAY AFTER BRINGING SHOWERS
AND MODEST COOLING TUESDAY. THE SECOND TROUGH WILL PASS THROUGH
OUR CWA LATER TODAY, WITH THE MAIN IMPACT BEING STRONG WINDS IN
SOUTHERN IDAHO THIS AFTERNOON. A WIND ADVISORY HAS BEEN ISSUED
VALID NOON TO 9 PM MDT, DUE TO A TIGHT WEST-TO-EAST SURFACE
PRESSURE GRADIENT BENEATH STRONG WEST WINDS ALOFT FROM THE
SECOND TROUGH. STRONGEST GUSTS AT THE SURFACE, 45 TO 55 MPH,
ARE FORECAST IN THE SNAKE BASIN BETWEEN MOUNTAIN HOME AND TWIN
FALLS BETWEEN 1 PM AND 5 PM MDT. AREAS OF BLOWING DUST WILL
BRIEFLY REDUCE VISIBILITY TO 1 OR 2 MILES. THE CAMAS PRAIRIE
SHOULD ALSO HAVE GUSTS AT LEAST 50 MPH THIS AFTERNOON. BOISE
WILL BE ON THE WESTERN EDGE OF THE ADVISORY AREA WITH GUSTS 40
TO 45 MPH MID-AFTERNOON. MOISTURE WILL BE MINIMAL, HOWEVER,
WITH ONLY SCATTERED LIGHT RAIN AND SNOW SHOWERS AND ISOLATED
AFTERNOON THUNDERSTORMS IN NORTHERNMOST MOUNTAINS.
THE SECOND TROUGH WILL EXIT EAST THIS EVENING AND WINDS WILL
DIE DOWN RAPIDLY LEAVING CLEAR SKIES, DRY AIR, AND LIGHT WINDS
BY MORNING, IDEAL FOR RADIATIONAL COOLING. LOW TEMPS THURSDAY
MORNING WILL DIP TO THE UPPER 20S TO MID 30S IN THE MOUNTAINS,
AND MID 30S TO LOWER 40S IN THE VALLEYS. HOWEVER, THURSDAY WILL
END UP 8 TO 15 DEGREES WARMER THAN TODAY AS HIGH PRESSURE ALOFT
BUILDS RAPIDLY INLAND FROM THE PACIFIC. TWIN FALLS COUNTY WILL
BE THE LAST TO WARM AS THAT AREA WILL STILL BE CLOSE TO THE
EXITING TROUGH. FRIDAY LOOKS ANOTHER 10 DEGREES WARMER CWA-
WIDE, AND FRIDAY NIGHT GENERALLY 4 TO 8 DEGREES WARMER THAN
THURSDAY NIGHT, UNDER CLEAR SKIES.
LONG TERM /SATURDAY THROUGH WEDNESDAY/
ISSUED 255 AM MDT WED JUN 10 2026
ANOTHER SHORT WAVE TROUGH IS FORECAST TO COME IN FROM WESTERN
CANADA SATURDAY STOPPING THE WARMING TREND, WITH SATURDAY AND
SUNDAY HIGHS HOLDING CLOSE TO NORMAL. CENTRAL IDAHO MAY EVEN
COOL SEVERAL DEGREES. THAT TROUGH WILL EXIT EAST MONDAY AND
ANOTHER WARMING TREND WILL BEGIN.
AVIATION /18Z WEDNESDAY THROUGH THURSDAY/
ISSUED 1140 AM MDT WED JUN 10 2026
LOWER CEILINGS AND SCATTERED RAIN/SNOW SHOWERS OBSCURING MTNS
ACROSS E-CENTRAL OREGON AND W-CENTRAL IDAHO THROUGH THE
AFTERNOON (MOSTLY NORTH OF KBKE-KMYL-KSNT LINE). VFR TO THE
SOUTH WITH SCATTERED MTN CUMULUS. SURFACE WINDS...W-NW 10-20 KT
WITH GUSTS TO 35 KT THROUGH SUNSET, BECOMING 5-15 KT OVERNIGHT.
KBOI...VFR. GUSTY NORTHWEST WINDS WILL DROP TO LESS THAN 10 KT
OVERNIGHT AND THURSDAY.
BOI WATCHES/WARNINGS/ADVISORIES
ID...WIND ADVISORY UNTIL 9 PM MDT THIS EVENING FOR IDZ014>016-028-
030.
OR...NONE.
WWW.WEATHER.GOV/BOISE
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSBOISE
WWW.X.COM/NWSBOISE
AVIATION.....DG
SHORT TERM...LC
LONG TERM....LC
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