803
FNUS75 KBYZ 041211
FWSBYZ

Spot Forecast for Miller Creek-Custer...BLM
National Weather Service Billings MT
611 AM MDT Fri Jul 4 2025

Forecast is based on forecast start time of 0600 MDT on July 04.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Increasing clouds this afternoon with scattered showers and
thunderstorms developing as early as 2pm. RH values will hold in
the mid 30s today with temperatures in the upper 80s and fairly
light (5 to 10 mph) southwest winds, turning northeast this
afternoon between 11am and 2pm. Erratic wind gusts up to 45 mph
can be expected near thunderstorms today. Chance of thunderstorms
continues through about 10pm, with a chance for showers lingering
into the overnight hours. Winds remain northeasterly in the 5 to
10 mph range tonight. There is a chance that ridgetop winds get a
bit gusty (18-24mph) late tonight through sunrise Saturday. Expect
strong RH recoveries tonight. Chambers

.TODAY...

Sky/weather.........Partly cloudy in the morning becoming mostly cloudy
                    in the afternoon. Chance of showers and isolated
                    thunderstorms in the afternoon.
CWR.................10 percent.
Chance of lightning.25 percent.
Max temperature.....85-89.
Min humidity........35-39 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds 5 to 10 mph shifting to the northeast
                    in the afternoon. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
 Ridgetop...........Southwest around 10 mph, shifting to the northeast
                    in the afternoon.
Mixing height.......500 ft AGL early in the morning increasing to
                    8000 ft AGL in the afternoon.
Transport winds.....North around 10 mph, shifting to the northeast in the
                    afternoon.

.TONIGHT...

Sky/weather.........Mostly cloudy then becoming partly cloudy.
                    Scattered thunderstorms in the evening. Chance
                    of showers through the night. Isolated
                    thunderstorms overnight.
CWR.................25 percent.
Chance of lightning.35 percent.
Min temperature.....61-65.
Max humidity........82-86 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds 5 to 10 mph. Gusty and erratic
                    winds expected near thunderstorms.
 Ridgetop...........Northeast winds 10 to 15 mph.
Mixing height.......8000 ft AGL early in the evening decreasing to
                    400 ft AGL overnight.
Transport winds.....Northeast around 12 mph.

$$
Forecaster...Chambers
Requested by...Hannah
Type of request...WILDFIRE
.TAG 2517294.0/BYZ
.DELDT 07/04/25
.FormatterVersion 2.0.0
.EMAIL mtmcc@firenet.gov