720
FNUS75 KBOI 280914
FWSBOI
SPOT FORECAST FOR GROUSE FIRE...SOUTH IDAHO INTERAGENCY DISPATCH
NATIONAL WEATHER SERVICE BOISE ID
314 AM MDT FRI AUG 28 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (208)334-9060, IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
..ISOLATED SHOWERS AND THUNDERSTORMS TODAY
..CHANCE FOR STRONGER THUNDERSTORMS ON SATURDAY
DISCUSSION
CLOUDY WITH MAINLY VIRGA SHOWERS THIS MORNING. THESE COULD
PRODUCE BRIEF WIND GUSTS UP TO 30 MPH. A CHANCE FOR SHOWERS AND
SLIGHT CHANCE FOR THUNDERSTORMS EARLY THIS EVENING INTO EARLY
SATURDAY MORNING WITH PASSAGE OF A WEAK SHORTWAVE. ABOUT A 30%
CHANCE OF WETTING RAINS TONIGHT. FAR MORE FAVORABLE CONDITIONS FOR
THUNDERSTORMS ON SATURDAY AFTERNOON AS A COLD FRONT MOVES ACROSS
THE AREA. STORMS COULD PRODUCE STRONG OUTFLOW WINDS UP TO 55 MPH
ALONG WITH BRIEF HEAVY RAIN. BEST CHANCE FOR STORMS WILL BE
BETWEEN 5 PM AND 8 PM MDT SATURDAY. A BRIEF BREAK IN THE
CONDITIONS ON SUNDAY AND MONDAY WITH THE NEXT LOW PRESSURE SYSTEM
MOVING IN BY THE MIDDLE OF THE WEEK.
TODAY
SKY/WEATHER.........CLOUDY WITH SCATTERED SHOWERS. ISOLATED
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 40 PERCENT.
MAX TEMPERATURE.....65 TO 72.
MIN HUMIDITY........38 TO 43 PERCENT.
CWR.................20 PERCENT.
WIND - 20 FOOT......SOUTHEAST 6 TO 12 MPH WITH GUSTS TO AROUND 18
MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS IN THE AFTERNOON.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...600 GOOD.
TONIGHT
SKY/WEATHER.........CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF
SHOWERS OVERNIGHT. CHANCE OF PRECIPITATION 40
PERCENT.
MIN TEMPERATURE.....51 TO 56.
MAX HUMIDITY........71 TO 76 PERCENT.
CWR.................30 PERCENT.
WIND - 20 FOOT......SOUTHEAST 3 TO 8 MPH WITH GUSTS TO AROUND 16
MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
VENTILATION INDEX...15 POOR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
MAX TEMPERATURE.....66 TO 71.
MIN HUMIDITY........33 TO 38 PERCENT.
CWR.................30 PERCENT.
WIND - 20 FOOT......WEST 6 TO 12 MPH. GUSTS UP TO 20 MPH IN THE
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE AFTERNOON.
MIXING HEIGHT.......8500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
VENTILATION INDEX...1700 EXCELLENT.
FORECASTER...SMITH
REQUESTED BY...COREY ASHBY
TYPE OF REQUEST...WILDFIRE
.TAG 2620752.0/BOI
.DELDT 08/28/26
.FORMATTERVERSION 2.0.0
.EMAIL SHAWN.ZIDKESOOSE@USDA.GOV,IDSCC@FIRENET.GOV
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