919
FNUS75 KBOI 111723
FWSBOI
SPOT FORECAST FOR WEST LOWMAN CLEAR CREEK 9...USFS
NATIONAL WEATHER SERVICE BOISE ID
1123 AM MDT THU SEP 11 2025
FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON SEPTEMBER 11.
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.
..SCATTERED WET STORMS WITH OUTFLOWS TO 40 MPH TODAY
..SLIGHT EASING TREND WITH SHOWERS AND STORMS ON FRIDAY
DISCUSSION
A 30-50% CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EVENING WITH
POSSIBLE HEAVY RAIN AND OUTFLOWS TO 40 MPH. CONDITIONS BRIEFLY
EASING AFTER MIDNIGHT WITH SHOWERS RENEWING FRIDAY MORNING AND A
15-25% CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING AGAIN.
ACCUMULATED RAIN TOTALS ARE EXPECTED TO BE 0.05-0.15" THROUGH
FRIDAY. IN THE ABSENCE OF OUTFLOWS, SOUTHWESTERLY WINDS AROUND 8
TO 12 MPH MAY EASE BRIEFLY BETWEEN 1600 AND 1800 MDT THURSDAY,
BEFORE SHIFTING TO A LIGHTER NORTHEASTERLY FLOW. AFTER 2200 WINDS
BECOME VERY LIGHT AND ARE LIKELY TO BE DOMINATED BY LOCAL
DOWNSLOPE/VALLEY FLOWS, AND WILL RETURN TO A SOUTHWEST DURING LATE
FRIDAY MORNING.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY LATE IN THE MORNING. A CHANCE OF
SHOWERS LATE IN THE MORNING, THEN SHOWERS AND A
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
AFTERNOON. CHANCE OF PRECIPITATION 80 PERCENT.
MAX TEMPERATURE.....60 TO 69.
MIN HUMIDITY........52 TO 57 PERCENT.
CWR.................60 PERCENT.
WIND - 20 FOOT......LESS THAN 3 MPH LATE IN THE MORNING BECOMING
SOUTHWEST AROUND 8 TO 12 MPH IN THE AFTERNOON.
GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
IN THE AFTERNOON.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...650 GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN PARTLY CLOUDY OVERNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
EVENING. CHANCE OF PRECIPITATION 30 PERCENT.
MIN TEMPERATURE.....44 TO 49.
MAX HUMIDITY........72 TO 98 PERCENT.
CWR.................10 PERCENT.
WIND - 20 FOOT......NORTHEAST AROUND 5 TO 8 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...15 POOR.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY. A SLIGHT CHANCE OF RAIN SHOWERS
IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
MAX TEMPERATURE.....60 TO 70.
MIN HUMIDITY........54 TO 59 PERCENT.
CWR.................20 PERCENT.
WIND - 20 FOOT......LESS THAN 3 MPH IN THE MORNING BECOMING WEST
AROUND 3 MPH IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
THE AFTERNOON.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 5 MPH.
VENTILATION INDEX...325 FAIR.
FORECASTER...ZHOU
REQUESTED BY...CHRISTOPHER KNIGHT
TYPE OF REQUEST...PRESCRIBED
.TAG 2521809.0/BOI
.DELDT 09/11/25
.FORMATTERVERSION 2.0.0
.EMAIL CHRISTOPHER.KNIGHT@USDA.GOV
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