816
FNUS75 KBOI 091121
FWSBOI

Spot Forecast for Fort Hall Unit 2...USFS...UPDATED
National Weather Service Boise ID
521 AM MDT Thu Oct 9 2025

Forecast is based on ignition time of 0900 MDT on October 09.
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.

...WARM DRY AND BREEZY THROUGH FRIDAY...
...COLD FRONT ARRIVES LATE FRIDAY WITH COOLER UNSETTLED CONDITIONS BY SATURDAY...

.DISCUSSION...
A low pressure system off the Pacific Northwest coast will bring
southwest flow aloft through Friday. This will bring breezy south-
southeast winds, especially during the afternoon, increasing each
afternoon through Friday. A cold front arrives late Friday with
breezy westerly winds and rain likely by midday Saturday. Breezy
westerly winds continue Saturday with much cooler temperatures.

.REST OF TODAY...

Sky/weather.........Mostly sunny.
Max temperature.....67 to 72.
Min humidity........20 to 30 percent.
CWR.................0 percent.
Wind - 20 foot......Southeast 3 to 6 mph shifting to southwest 3 to 6 mph
                    in the afternoon.
Mixing height.......3500 ft AGL.
Transport winds.....South around 15 mph.
Ventilation Index...525 good.

.TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....51 to 56.
Max humidity........56 to 61 percent.
CWR.................0 percent.
Wind - 20 foot......Southeast 6 to 10 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southeast around 5 mph.
Ventilation Index...20 poor.

.FRIDAY...

Sky/weather.........Mostly sunny. Increasing clouds with a 20
                    percent chance of showers late in the afternoon.
Max temperature.....65 to 70.
Min humidity........25 to 30 percent.
CWR.................10 percent.
Wind - 20 foot......Southwest 6 to 10 mph with gusts to around 16 mph.
Mixing height.......4500 ft AGL.
Transport winds.....South around 20 mph.
Ventilation Index...900 excellent.

$$
Forecaster...Anderson
Requested by...Caleb Fooks
Type of request...PRESCRIBED
.TAG 2523200.0/BOI
.DELDT 10/09/25
.FormatterVersion 2.0.0
.EMAIL caleb.fooks@usda.gov,Nicholas.r.schreiner@usda.gov,kevin.guillard@usda.gov,andrew.geringer@usda.gov