135
FNUS75 KBOI 281246
FWSBOI
SPOT FORECAST FOR POORMAN RX...BOISE NF
NATIONAL WEATHER SERVICE BOISE ID
646 AM MDT THU MAY 28 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON MAY 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 AND FRIDAY
..WARM AND BREEZY TODAY, COOLER FRIDAY
DISCUSSION
AN AREA OF LOW PRESSURE OVER THE GREAT BASIN WILL BRING ISOLATED
SHOWERS AND THUNDERSTORMS TO THE BOISE MOUNTAINS THIS AFTERNOON.
GUSTY OUTFLOW WINDS AND LIGHTNING WILL BE THE MAIN HAZARD WITH
ANY SHOWERS OR STORMS. OUTSIDE OF STORMS, WINDS THIS AFTERNOON
INTO EARLY EVENING WILL PICK UP FROM THE SOUTH. TEMPERATURES
WILL BE SEVERAL DEGREES WARMER THAN YESTERDAY WITH LOWER
AFTERNOON HUMIDITY. ISOLATED SHOWERS AND THUNDERSTORMS WILL
CONTINUE ON FRIDAY WITH COOLER TEMPERATURES AND LIGHTER WINDS FROM
THE WEST.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
MAX TEMPERATURE.....76 TO 82.
MIN HUMIDITY........20 TO 25 PERCENT.
CWR.................10 PERCENT.
WIND - 20 FOOT......UPSLOPE UP TO 3 MPH IN THE MORNING
BECOMING SOUTH 7 TO 13 MPH WITH GUSTS TO AROUND
22 MPH IN THE AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......12000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 25 MPH.
VENTILATION INDEX...3000 EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....43 TO 48.
MAX HUMIDITY........75 TO 90 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......SOUTH 6 TO 12 MPH WITH GUSTS TO AROUND 20 MPH
IN THE EVENING, BECOMING DOWNSLOPE LESS THAN 3
MPH AFTER 2100 HRS.
MIXING HEIGHT.......100 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...5 POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY. A 10% CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....70 TO 76.
MIN HUMIDITY........28 TO 33 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......WEST TO NORTHWEST 4 TO 8 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......9000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...900 EXCELLENT.
FORECASTER...TANGEN
REQUESTED BY...RYAN SHANNAHAN
TYPE OF REQUEST...PRESCRIBED
.TAG 2611661.28/BOI
.DELDT 05/28/26
.FORMATTERVERSION 2.0.0
.EMAIL RYAN.SHANNAHAN@USDA.GOV
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