169
FXUS65 KBOI 112032
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
232 PM MDT THU JUN 11 2026
KEY MESSAGES
- CLEAR, WARMER, AND DRIER THROUGH THE FORECAST.
- BREEZY CONDITIONS TOMORROW THROUGH SATURDAY.
SHORT TERM /THROUGH SATURDAY NIGHT/
PACIFIC HIGH PRESSURE BUILDS AS A GREAT LAKES TROUGH REMAINS IN
PLACE. THESE TWO SYNOPTIC FEATURES KEEP US IN A TIGHT PRESSURE
GRADIENT AS HIGH PRESSURE BUILDS IN. THIS MEANS WINDY
AFTERNOONS, ESPECIALLY FRIDAY AND SATURDAY, AND A STEADILY
WARMING AND DRYING TREND WITH CLEAR SKIES. FRIDAY WILL BE 5
DEGREES WARMER THAN TODAY, AND SATURDAY IS FORECAST TO BE ABOUT
THE SAME AS FRIDAY. A SHORT WAVE EMBEDDED IN THE FLOW BRINGS
INCREASED WINDS FRIDAY LINGERING INTO SATURDAY. WIND GUSTS OF
25-35 MPH CAN BE EXPECTED IN OPEN AREAS, HIGHLANDS, AND
RIDGETOPS REMAINING ELEVATED OVERNIGHT INTO SATURDAY WHERE THEY
COME DOWN TO 20-30 MPH. WINDS WEAKEN HEADING INTO THE LONG TERM
AS THE WARMING AND DRYING CONTINUES.
LONG TERM /SUNDAY THROUGH THURSDAY/
HEAT WILL CONTINUE TO BUILD ACROSS THE REGION AS AN UPPER RIDGE
MOVES IN FROM THE COAST EARLY NEXT WEEK. THE AREA REMAINS DRY
DURING THIS TIME AS NORTHWEST FLOW ALOFT KEEPS MONSOON MOISTURE
LOCKED UP OVER THE FOUR CORNERS AREA. HIGH TEMPERATURES WILL
REACH 10-15 DEGREES ABOVE NORMAL BY TUESDAY, STAYING IN THAT
RANGE THROUGH THURSDAY. LOWER ELEVATIONS WILL SEE HIGHS IN THE
LOW-MID 90S STARTING ON MONDAY. TUESDAY IS FORECAST TO BE THE
HOTTEST DAY, WITH WEDNESDAY ONLY A DEGREE OR TWO LOWER. FOR
TYPICALLY HOTTER SITES IN THE SNAKE PLAIN THE PROBABILITY OF 100
OR GREATER IS 10% OR LESS TUE/WED, WHILE THE CHANCE OF REACHING
95 HAS BUMPED UP TO 50-80%. MODELS CONTINUE TO SHOW A TROUGH
APPROACHING THE PAC NW LATE NEXT WEEK.
AVIATION /18Z THURSDAY THROUGH FRIDAY/
ISSUED 1200 PM MDT THU JUN 11 2026
VFR. CLEAR SKIES OUTSIDE OF A SPARSE CUMULUS FIELD OVER HIGHER
TERRAIN THIS AFTERNOON. SURFACE WINDS: VARIABLE DIRECTION WITH
SPEEDS UP TO 12 KT THROUGH FRIDAY MORNING. WINDS ALOFT AT 10KFT
MSL: WESTERLY 5-15 KT.
KBOI...VFR WITH SURFACE WINDS LESS THAN 10 KT.
WEEKEND OUTLOOK...VFR UNDER CLEAR SKIES. A FEW AFTERNOON
MOUNTAIN CUMULUS ARE POSSIBLE. BREEZY NW SURFACE WINDS FRIDAY
AFTERNOON THROUGH SATURDAY WITH GUSTS OF 20-35 KT. LIGHTER
WINDS ON SUNDAY.
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...JM
LONG TERM....DG
AVIATION.....DG
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