476
FNUS75 KBYZ 170044
FWSBYZ

Spot Forecast for INC 792 SIOUX PASS...BIA
National Weather Service Billings MT
644 PM MDT Thu Jul 16 2026

Forecast is based on forecast start time of 1900 MDT on July 16.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Chances for slow moving showers and thunderstorms this evening
with the best chances occuring between now and 9 PM. These
thunderstorms have the potential to bring torrential rainfall and
strong winds. Friday will see similar conditions to today with
slightly higher temperatures, lower minimum relative humidity
values, and additional chances for slow moving showers and
thunderstorms. Torgerson

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy. Chance of showers and thunderstorms.
CWR.................27 percent.
Chance of lightning.37 percent.
Min temperature.....63-67.
Max humidity........77-81 percent.
Wind (20 ft)........
 Slope/valley.......Light winds. Gusty and erratic winds
                    expected near thunderstorms.
 Ridgetop...........Southeast around 10 mph.
Mixing height.......Decreasing to 500 ft AGL overnight.
Transport winds.....Southeast around 9 mph.

.FRIDAY...

Sky/weather.........Mostly sunny. Slight chance of showers and
                    thunderstorms in the afternoon.
CWR.................12 percent.
Chance of lightning.15 percent.
Max temperature.....91-95.
Min humidity........35-39 percent.
Wind (20 ft)........
 Slope/valley.......Southeast winds 5 to 7 mph increasing to 8 to 12 mph
gusting to 18 mph in the afternoon. Gusty and erratic
                    winds expected near thunderstorms.
 Ridgetop...........Southeast around 20 mph in the afternoon.
Mixing height.......Increasing to 9000 ft AGL in the afternoon.
Transport winds.....Southeast around 18 mph.

$$
Forecaster...Torgerson
Requested by...WHITNEY CASEBOLT
Type of request...WILDFIRE
.TAG 2617516.0/BYZ
.DELDT 07/16/26
.FormatterVersion 2.0.0
.EMAIL MTBDC@FIRENET.GOV