421
FXUS65 KBOI 102023
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
223 PM MDT THU JUL 10 2025
SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT
DRY
NORTHWESTERLY FLOW WILL PERSIST THROUGH THE WEEKEND, MAINTAINING
GENERALLY QUIET WEATHER ACROSS THE REGION. WINDS WILL REMAIN
LIGHT, WITH OCCASIONAL AFTERNOON GUSTS UP TO 25 MPH IN THE LOWER
VALLEYS. SKIES WILL STAY MOSTLY CLEAR, THOUGH LOCALIZED AREAS
OF SMOKE ARE POSSIBLE DUE TO NEW WILDFIRE ACTIVITY. A FEW
ADDITIONAL FIRES HAVE BEEN DETECTED ON SATELLITE TODAY, AND IT’S
LIKELY THAT A FEW MORE WILL BE SEEN THIS AFTERNOON AND EVENING.
AT THIS TIME, SMOKE IMPACTS APPEAR MINIMAL.
THE NORTHWESTERLY FLOW ALOFT SHOULD CONTINUE TO STEER SMOKE FROM
LARGER FIRES IN SOUTH-CENTRAL OREGON AWAY FROM THE AREA.
TEMPERATURES WILL TREND WARMER THROUGH THE WEEKEND—STARTING NEAR
SEASONAL AVERAGES ON FRIDAY AND RISING TO ABOUT 5 DEGREES ABOVE
NORMAL BY SUNDAY.
LONG TERM...SUNDAY THROUGH THURSDAY
HOT, DRY, AND BREEZY
CONDITIONS ARE EXPECTED SUNDAY AND MONDAY AS STRONG HIGH PRESSURE
DOMINATES THE SOUTHWEST U.S. AND INFLUENCES THE INTERMOUNTAIN WEST.
A WEAK SHORTWAVE TROUGH WILL APPROACH FROM CANADA LATE MONDAY AND
MOVE SOUTH-SOUTHEAST ALONG THE NORTHERN ROCKIES BY TUESDAY. WHILE
THE MAIN BULK OF MID-LEVEL MOISTURE WILL REMAIN EAST OF THE FORECAST
AREA, LATEST GUIDANCE SUPPORTS A 10-15% CHANCE OF THUNDERSTORMS
FARTHER WEST INTO CENTRAL IDAHO TUESDAY AFTERNOON AND EVENING THAN
PREVIOUSLY EXPECTED. SURFACE WINDS WILL ALSO INCREASE WITH THE
TROUGH PASSAGE AND ASSOCIATED COLD FRONT, WITH GUSTS PEAKING AROUND
LATE AFTERNOON. MAX TEMPERATURES WILL LOWER SLIGHTLY FROM MONDAY BUT
ARE EXPECTED TO REMAIN A FEW DEGREES ABOVE NORMAL. THEREAFTER, HOT
AND MOSTLY DRY CONDITIONS ARE EXPECTED TO RETURN BEHIND THE TROUGH.
MODELS BECOME SOMEWHAT DISORGANIZED TOWARD THE END OF THE WEEK, BUT
HINT AT THE POTENTIAL FOR SHOWERS/THUNDERSTORMS RETURNING AS
SOUTHWEST FLOW DEVELOPS ALOFT.
AVIATION
VFR. LOCALIZED SMOKE NEAR WILDFIRES. SURFACE WINDS: W
TO N 5-15 KT WITH 15-20 KT GUSTS...EXCEPT 10-20 KT WITH 25-30 KT
GUSTS FOR SOUTH-CENTRAL ID. WINDS ALOFT AT 10KFT MSL: NW-W 10-25 KT.
KBOI...VFR. SURFACE WINDS: NW 8-14 KT. GUSTS AROUND 20 KT THROUGH
THIS EVENING.
WEEKEND OUTLOOK: VFR. LOCALIZED SMOKE NEAR WILDFIRES. HIGH DENSITY
ALTITUDE DUE TO HOT TEMPERATURES, ESPECIALLY SUNDAY/MONDAY. SURFACE
WINDS: W-N 5-15 KT, WITH 15-25 KT GUSTS IN THE AFTERNOONS.
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...JDS
LONG TERM....SH
AVIATION.....SH
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