714
FNUS75 KBYZ 292329
FWSBYZ

Spot Forecast for Wrench Creek Fire...MT DNRC-SLO
National Weather Service Billings MT
529 PM MDT Wed Jul 29 2026

Forecast is based on forecast start time of 1800 MDT on July 29.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...
Scattered showers and thunderstorms are developing around the
area, and may impact the fire site with gusty/erratic wind gusts
to 50 mph through the evening. A direct hit from a storm could
produce brief moderate to heavy rainfall. Expect wind directions
this evening to be highly variable due to the showers and storms
in the area. Some showers and weaker thunderstorms will linger
late tonight into Thursday.

.TONIGHT...

Sky/weather.........Mostly cloudy. Scattered showers and thunderstorms
                    in the evening, then scattered showers and isolated
                    thunderstorms overnight. Erratic wind gusts to 50
                    mph possible near storms this evening.
CWR.................20 percent.
Chance of lightning.35 percent.
Min temperature.....61-65.
Max humidity........78-82 percent.
Wind (20 ft)........
 Slope/valley.......Southeast 6-12 mph in the evening shifting north
                    overnight. Wind directions will be highly variable
                    during the evening.
 Ridgetop...........Southeast 10-15 mph in the evening shifting north
                    8-12 mph overnight. Wind directions will be highly
                    variable during the evening.
Mixing height.......Decreasing to 500 ft AGL overnight.
Transport winds.....Southeast 10 mph shifting north.

.THURSDAY...

Sky/weather.........Partly sunny. Scattered showers and isolated
                    thunderstorms. Erratic wind gusts to 40 mph
                    possible near storms in the afternoon.
CWR.................5 percent.
Chance of lightning.20 percent.
Max temperature.....89-93.
Min humidity........23-27 percent.
Wind (20 ft)........
 Slope/valley.......Northwest to north 5-10 mph in the morning, then
                    northeast to east 10-15 mph.
 Ridgetop...........North 10 mph becoming northeast to east 10-15 mph.
Mixing height.......Increasing to 8000 ft AGL in the afternoon.
Transport winds.....North 8 mph becoming northeast 13 mph.

$$
Forecaster...Lester
Requested by...Craig Riske
Type of request...WILDFIRE
.TAG 2618614.0/BYZ
.DELDT 07/29/26
.FormatterVersion 2.0.0
.EMAIL riskeca@gmail.com