371
FNUS75 KBOI 231117
FWSBOI

Spot Forecast for Mores South...USFS, Boise NF
National Weather Service Boise ID
517 AM MDT Fri May 23 2025

Forecast is based on ignition time of 0600 MDT on May 23.
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 THUNDERSTORMS THIS AFTERNOON. SUNNY, WARMER, AND DRIER SATURDAY...

.DISCUSSION...
Another weak Pacific upper trough will move inland today, leading to a 15%
chance of a thunderstorm over the fire area between 2 and 4 PM MDT this
afternoon (less than 10 percent chance before or after those hours).
Upper ridge will replace the trough on Saturday with sunny skies, warmer
temps and lower humidity, but also slightly poorer ventilation.

.TODAY...

Sky/weather.........Mostly sunny in the morning. Isolated showers and
                    thunderstorms in the afternoon (peak time 2-4 PM MDT).
                    Chance of precipitation 15 percent.
Max temperature.....64 to 71.
Min humidity........27 to 32 percent.
CWR.................10 percent.
Wind - 20 foot......Less than 3 mph in the morning becoming
                    northwest around 4 mph in the afternoon. Gusty
                    and erratic winds expected near thunderstorms
                    in the afternoon.
Mixing height.......8500 ft AGL.
Transport winds.....West around 5 mph.
Ventilation Index...425 fair.

.TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....35 to 42.
Max humidity........70 to 87 percent.
CWR.................0 percent.
Wind - 20 foot......Northwest 3 to 4 mph in the evening becoming
                    less than 3 mph overnight.
Mixing height.......500 ft AGL.
Transport winds.....Northeast around 5 mph.
Ventilation Index...25 poor.

.SATURDAY...

Sky/weather.........Sunny.
Max temperature.....70 to 77.
Min humidity........18 to 23 percent.
CWR.................0 percent.
Wind - 20 foot......Less than 3 mph in the morning becoming west 3
                    to 4 mph in the afternoon.
Mixing height.......6000 ft AGL.
Transport winds.....Northwest around 5 mph.
Ventilation Index...300 fair.

$$
Forecaster...Colin
Requested by...C. Hightower
Type of request...PRESCRIBED
.TAG 2514285.1/BOI
.DELDT 05/23/25
.FormatterVersion 2.0.0
.EMAIL christopher.m.boldman@usda.gov,christopher.hightower@usda.gov