141 
FNUS75 KBOI 270103
FWSBOI

Spot Forecast for Mores South Rx...USFS
National Weather Service Boise ID
703 PM MDT Fri Sep 26 2025

Forecast is based on ignition time of 0700 MDT on September 27. 
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.

...DRY AND WARM UNTIL SUNDAY NIGHT...
...COLDER WITH WETTING RAINS BEGINNING LATE SUNDAY NIGHT...

.DISCUSSION...
Dry with warming until Sunday before a pattern shift Sunday night 
through Wednesday. Light diurnal winds, mainly south and east at the
burn site Saturday and Sunday. Multiple days of CWR near 60%, 
temps cooling 5-10 degrees each day after Sunday. Embedded storms 
are possible, but cloudiness and a cooler surface will inhibit 
instability. Min RHs rise from 20% this weekend to 80% 
Monday/Tuesday. 

.SATURDAY...

Sky/weather.........Sunny. 
Max temperature.....70 to 75. 
Min humidity........17 to 22 percent. 
CWR.................0 percent. 
Wind - 20 foot......South 3 to 6 mph. 
Mixing height.......4500 ft AGL. 
Transport winds.....South around 10 mph. 
Ventilation Index...450 fair. 

.SATURDAY NIGHT...

Sky/weather.........Mostly clear. 
Min temperature.....49 to 54. 
Max humidity........34 to 39 percent. 
CWR.................0 percent. 
Wind - 20 foot......Southeast 3 to 6 mph. 
Mixing height.......200 ft AGL. 
Transport winds.....East around 5 mph. 
Ventilation Index...10 poor. 

.SUNDAY...

Sky/weather.........Mostly Sunny. 
Max temperature.....74 to 79. 
Min humidity........18 to 23 percent. 
CWR.................0 percent. 
Wind - 20 foot......East 4 to 7 mph in the morning shifting to the 
                    south in the afternoon. Gusts up to 15 mph in 
                    the afternoon.  
Mixing height.......8500 ft AGL. 
Transport winds.....Southwest around 10 mph. 
Ventilation Index...850 excellent. 

$$
Forecaster...Smith
Requested by...E. Hunt
Type of request...PRESCRIBED
.TAG 2522550.1/BOI
.DELDT 09/27/25
.FormatterVersion 2.0.0
.EMAIL eduard.hunt@usda.gov