583
FNUS75 KBYZ 121929
FWSBYZ

Spot Forecast for HWY 212 1097...BIA
National Weather Service Billings MT
129 PM MDT Wed Aug 12 2026

Forecast is based on forecast start time of 1400 MDT on August 12.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

20% chance for a shower or thundestorm this afternoon, with
chances increasing tonight through tomorrow. Temperatures should
reach the low to mid 80s this afternoon with MinRH values in the
50-60% range. Strong RH recoveries tonight with fog possible by
sunrise. Continued chances for showers and thunderstorms thursday
with cooler temperatures and MinRH values near 70%.

Precipitation potential through Thursday afternoon:
>0.1 inches : 60%
>0.25       : 37%
>0.5        : 25%
>1.0        : 15%

Chambers


.REST OF TODAY...

Sky/weather.........Mostly cloudy. Isolated showers and thunderstorms.
CWR.................5 percent.
Chance of lightning.30 percent.
Max temperature.....82-87.
Min humidity........54-58 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds 5 to 10 mph, gusts to 18mph.
                    Gusty and erratic winds expected near thunderstorms.
 Ridgetop...........Northwest around 10 mph.
Mixing height.......7200 ft AGL in the afternoon.
Transport winds.....North around 10 mph.

.TONIGHT...

Sky/weather.........Mostly cloudy. Scattered thunderstorms in the
                    evening. Isolated showers and thunderstorms through
                    the overnight.
CWR.................35 percent.
Chance of lightning.35 percent.
Min temperature.....58-62.
Max humidity........90-100 percent.
Wind (20 ft)........
 Slope/valley.......East winds 5 to 10 mph. Gusts up to 18 mph in
                    the evening. Gusty and erratic winds expected
                    near thunderstorms.
 Ridgetop...........East around 6 mph.
Mixing height.......600 ft AGL overnight.
Transport winds.....East around 12 mph.

.THURSDAY...

Sky/weather.........Mostly cloudy. Areas of fog in the morning.
                    Chance of rain showers in the morning. Showers and
                    scattered thunderstorms in the afternoon.
CWR.................52 percent.
Chance of lightning.31 percent.
Max temperature.....75-80.
Min humidity........68-74 percent.
Wind (20 ft)........
 Slope/valley.......East winds 5 to 10 mph. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
 Ridgetop...........East around 8 mph.
Mixing height.......4800 ft AGL in the afternoon.
Transport winds.....Southeast around 10 mph.

$$
Forecaster...Chambers
Requested by...IC White Clay
Type of request...WILDFIRE
.TAG 2619546.0/BYZ
.DELDT 08/12/26
.FormatterVersion 2.0.0
.EMAIL mtbdc@firenet.gov