527
FNUS75 KBYZ 250207
FWSBYZ

Spot Forecast for Cass...DNRC
National Weather Service Billings MT
807 PM MDT Fri Jul 24 2026

Forecast is based on forecast start time of 2000 MDT on July 24.
If conditions become unrepresentative...contact the National Weather
Service.

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

...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO MIDNIGHT MDT
SATURDAY NIGHT...

.DISCUSSION...

Very hot and mostly dry conditions will prevail at the site
through the weekend. The main concern through the forecast period
will be showers and thunderstorms late Saturday afternoon and
evening, capable of producing strong and erratic wind gusts and
lightning. There is a medium chance for wind gusts in excess of 60
mph. Brief heavy rain cannot be ruled out, though the chance for
a wetting rain is low. Look for poor relative humidity recoveries
tonight and moderate recoveries Saturday night.

.REST OF TONIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
Chance of lightning.6 percent.
Min temperature.....69-73.
Max humidity........30-35 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 10 mph shifting to the
                    southeast 3 to 7 mph overnight.
 Ridgetop...........Northwest around 10 mph becoming southeast
up to 8 mph overnight.
Mixing height.......Decreasing to 500 ft AGL overnight.
Transport winds.....Southeast around 9 mph.

.SATURDAY...

Sky/weather.........Sunny then becoming partly sunny.
CWR.................0 percent.
Chance of lightning.4 percent.
Max temperature.....98-102.
Min humidity........10-15 percent.
Wind (20 ft)........
 Slope/valley.......Southeast becoming west up to 8 mph in the
                    afternoon.
 Ridgetop...........Southeast becoming west up to 10 mph.
Mixing height.......Increasing to 11600 ft AGL in the afternoon.
Transport winds.....Southwest around 10 mph.

.SATURDAY NIGHT...

Sky/weather.........Mostly cloudy then becoming partly cloudy.
                    Slight chance of showers and thunderstorms in
                    the evening.
CWR.................Less than 10 percent.
Chance of lightning.20 percent.
Min temperature.....70-74.
Max humidity........46-50 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds up to 5 mph in the evening
                    becoming south. Erratic wind gusts expected
                    near thunderstorms in the evening.
 Ridgetop...........Southwest around 10 mph becoming south
overnight.
Mixing height.......Decreasing to 500 ft AGL overnight.
Transport winds.....Southwest around 12 mph.

$$
Forecaster...Matos
Requested by...Zach Snyder
Type of request...WILDFIRE
.TAG 2618173.0/BYZ
.DELDT 07/24/26
.FormatterVersion 2.0.0
.EMAIL mtbdc@firenet.gov