731
FNUS75 KBOI 281013
FWSBOI
SPOT FORECAST FOR LAKE FIRE...USFS
NATIONAL WEATHER SERVICE BOISE ID
413 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 THIS EVENING
..CHANCE FOR STRONGER THUNDERSTORMS ON SATURDAY
DISCUSSION
CLOUDY TODAY WITH TEMPERATURES NEAR NORMAL. A CHANCE FOR SHOWERS
AND SLIGHT CHANCE FOR THUNDERSTORMS LATE THIS EVENING INTO EARLY
SATURDAY MORNING WITH PASSAGE OF A WEAK SHORTWAVE. THERE IS ABOUT
A 30% CHANCE OF WETTING RAINS TONIGHT. FAR MORE FAVORABLE
CONDITIONS FOR THUNDERSTORMS ON SATURDAY EVENING AS A COLD FRONT
MOVES ACROSS THE AREA. STORMS COULD PRODUCE STRONG OUTFLOW WINDS
UP TO 45 MPH ALONG WITH BRIEF HEAVY RAIN. A BRIEF BREAK IN THE
COOLER AND WETTER CONDITIONS ON SUNDAY AND MONDAY WITH THE NEXT
LOW PRESSURE SYSTEM MOVING IN BY THE MIDDLE OF THE WEEK.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY.
MAX TEMPERATURE.....68 TO 73.
MIN HUMIDITY........26 TO 31 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......SOUTHEAST AROUND 6 MPH IN THE MORNING BECOMING
SOUTHWEST 6 TO 12 MPH IN THE AFTERNOON. GUSTS UP
TO 14 MPH IN THE MORNING INCREASING TO 22 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......7000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
VENTILATION INDEX...1400 EXCELLENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS OVERNIGHT. CHANCE OF
PRECIPITATION 30 PERCENT.
MIN TEMPERATURE.....45 TO 50.
MAX HUMIDITY........79 TO 84 PERCENT.
CWR.................30 PERCENT.
WIND - 20 FOOT......SOUTHWEST 5 TO 11 MPH WITH GUSTS TO AROUND 20
MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
VENTILATION INDEX...50 POOR.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF RAIN IN THE MORNING,
THEN A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
MAX TEMPERATURE.....60 TO 65.
MIN HUMIDITY........39 TO 44 PERCENT.
CWR.................30 PERCENT.
WIND - 20 FOOT......SOUTHWEST 8 TO 14 MPH. GUSTS UP TO 20 MPH IN
THE MORNING INCREASING TO 26 MPH IN THE
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE AFTERNOON.
MIXING HEIGHT.......8000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
VENTILATION INDEX...1600 EXCELLENT.
FORECASTER...SMITH
REQUESTED BY...JUSTIN ALESHIRE
TYPE OF REQUEST...WILDFIRE
.TAG 2620236.4/BOI
.DELDT 08/28/26
.FORMATTERVERSION 2.0.0
.EMAIL JUSTIN.ALESHIRE@USDA.GOV
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