243 
FNUS75 KBYZ 251053
FWSBYZ

Spot Forecast for Smoke 1135...USFS
National Weather Service Billings MT
453 AM MDT Thu Sep 25 2025

Forecast is based on forecast start time of 0800 MDT on September 25. 
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office if you have questions
or concerns with this forecast.

.DISCUSSION...

Dry conditions and southwesterly winds will prevail over the fire
site today. Look for winds to increase this evening ahead of a 
dry cold front passage Friday. While winds tonight look to 
decrease at the surface, winds aloft will remain gusty, 
potentially keeping the fire active. This should also keep 
southwesterly winds over the fire site through tonight. Look for 
slightly cooler and more humid conditions to exist Friday behind 
the front, along with westerly winds. Conditions will then trend 
warmer and drier this weekend before a slight chance of 
precipitation returns to the fire site late Sunday into Monday. 
Arends

.TODAY...

Sky/weather.........Sunny. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....61-65. 
Min humidity........22-26 percent. 
Wind (20 ft)........ 
 Slope/valley.......Southwest 7 to 12 mph with gusts up to 18 mph 
                    in the afternoon.
 Ridgetop...........Southwest 10 to 20 mph.
Mixing height.......Increasing to 5600 ft AGL in the afternoon. 
Transport winds.....Southwest 10 to 20 mph. 

.TONIGHT...

Sky/weather.........Mostly clear. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Min temperature.....37-41. 
Max humidity........59-63 percent. 
Wind (20 ft)........ 
 Slope/valley.......Southwest 7 to 12 mph with gusts up to 20 mph
                    in the evening, decreasing to 4 to 8 mph overnight.
 Ridgetop...........Southwest around 15 to 25 mph. 
Mixing height.......Decreasing to 400 ft AGL overnight. 
Transport winds.....Southwest around 10 to 20 mph. 

.FRIDAY...

Sky/weather.........Sunny. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....56-60. 
Min humidity........28-32 percent. 
Wind (20 ft)........ 
 Slope/valley.......West 8 to 12 mph with gusts up to 18 mph 
                    in the afternoon.
 Ridgetop...........West around 10 to 20 mph. 
Mixing height.......Increasing to 7600 ft AGL in the afternoon. 
Transport winds.....West around 10 to 20 mph. 

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
Mostly clear. Lows in the mid 30s. Highs in the lower 60s.
Southwest winds around 6 to 10 mph with gusts up to 16 mph.
.SUNDAY...
Mostly clear. Lows in the upper 30s. Highs in the lower 60s.
Southwest winds around 6 to 10 mph with gusts up to 16 mph.
.MONDAY...
Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Southwest winds around 8 to 12 mph with gusts up to 18 mph. 

$$
Forecaster...Arends
Requested by...Z. Snyder
Type of request...WILDFIRE
.TAG 2522220.6/BYZ
.DELDT 09/25/25
.FormatterVersion 2.0.0
.EMAIL mtbdc@firenet.gov