529
FNUS75 KBOI 280009
FWSBOI
SPOT FORECAST FOR CROOKED...USFS
NATIONAL WEATHER SERVICE BOISE ID
609 PM MDT THU AUG 27 2026
FORECAST IS BASED ON FORECAST START TIME OF 0000 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.
..BREEZY WITH SHOWERS AND ISOLATED THUNDERSTORMS
DISCUSSION
BREEZY SOUTHWEST WINDS WILL DEVELOP EACH AFTERNOON FRIDAY AND
SATURDAY, ALTHOUGH NOT AS STRONG AS WINDS TODAY AND HUMIDITY WILL
BE HIGHER. CLOUDS AND EMBEDDED SCATTERED SHOWERS WILL MOVE UP
FROM THE SOUTHWEST LATE TONIGHT THROUGH SATURDAY, WITH ISOLATED
THUNDERSTORMS ALSO DEVELOPING. THE HIGHEST CHANCE OF SHOWERS AND
THUNDERSTORMS WILL BE FRIDAY NIGHT. OUTFLOW GUSTS TO AROUND 35
MPH WILL BE POSSIBLE FROM NEARBY THUNDERSTORM ACTIVITY. A COLD
FRONT SATURDAY NIGHT WILL BRING A WIND SHIFT TO THE WEST INTO
SUNDAY ALONG RIDGELINES, BUT WIND SPEEDS SHOULD TREND LOWER THAN
FRIDAY AND SATURDAY.
REST OF TONIGHT
SKY/WEATHER.........CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS OVERNIGHT. CHANCE OF
PRECIPITATION 30 PERCENT.
MIN TEMPERATURE.....57 TO 62.
MAX HUMIDITY........38 TO 47 PERCENT.
CWR.................20 PERCENT.
WIND - 20 FOOT......SOUTHWEST 3 TO 7 MPH, THEN DOWNVALLEY/DOWNSLOPE
2 TO 5 MPH AFTER 2000 HRS. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......100 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...5 POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. CHANCE OF
PRECIPITATION 30 PERCENT.
MAX TEMPERATURE.....74 TO 82.
MIN HUMIDITY........28 TO 33 PERCENT.
CWR.................20 PERCENT.
WIND - 20 FOOT......TERRAIN-DRIVEN WINDS LESS THAN 5 MPH IN THE MORNING,
BECOMING SOUTHWEST 6 TO 11 MPH WITH GUSTS TO 17 MPH
IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
VENTILATION INDEX...975 EXCELLENT.
FRIDAY NIGHT
SKY/WEATHER.........CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION
50 PERCENT.
MIN TEMPERATURE.....50 TO 55.
MAX HUMIDITY........70 TO 80 PERCENT.
CWR.................30 PERCENT.
WIND - 20 FOOT......SOUTHWEST 6 TO 10 MPH WITH GUSTS TO AROUND 18 MPH
IN THE EVENING SHIFTING TO THE NORTHEAST 2 TO 6 MPH
OVERNIGHT. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
VENTILATION INDEX...10 POOR.
SATURDAY
SKY/WEATHER.........CLOUDY WITH A CHANCE OF SHOWERS IN THE MORNING,
THEN PARTLY SUNNY WITH A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 30 PERCENT.
MAX TEMPERATURE.....72 TO 80.
MIN HUMIDITY........23 TO 28 PERCENT.
CWR.................10 PERCENT.
WIND - 20 FOOT......SOUTHWEST 3 TO 6 MPH IN THE MORNING, INCREASING
TO 7 TO 12 MPH WITH GUSTS TO AROUND 20 MPH
IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS IN THE
AFTERNOON.
MIXING HEIGHT.......9000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
VENTILATION INDEX...1350 EXCELLENT.
FORECASTER...TANGEN
REQUESTED BY...IDAHO TEAM 1
TYPE OF REQUEST...WILDFIRE
.TAG 2620745.0/BOI
.DELDT 08/28/26
.FORMATTERVERSION 2.0.0
.EMAIL 2026.CROOKED.PLANS@FIRENET.GOV,BDYER@BLM.GOV
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