FNUS75 KBYZ 222318
FWSBYZ

Spot Forecast for Ten Fire...Wildland Fire Service
National Weather Service Billings MT
518 PM MDT Sat Aug 22 2026

Forecast is based on forecast start time of 1700 MDT on August 22. 
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

One round of showers and isolated thunderstorms is in the fire 
vicinity now and will linger until around 8pm this evening, though
this activity is looking weak on radar at this time. Another area
will arrive from the west around 10pm tonight and persist until 
around 3am. Models show this round being more active than the 
current activity. Dry conditions are forecast after that through 
tomorrow afternoon. Wind gusts to 40 mph will be the main threat 
with any storms tonight, and storms will be wet. Expect good RH 
recoveries tonight with winds remaining breezy out of the south 
through the night tonight. Sunny skies for Sunday with MinRH 
dropping to the low/mid 20% range with temps reaching the lower 
90s. Winds will shift from southwest to northwest through the 
morning with gusts in the 20 mph range for the afternoon. The next
round of showers and thunderstorms arrives around 6pm Sunday 
evening. Chambers

.TONIGHT...

Sky/weather.........Mostly cloudy. Chance of showers and thunderstorms
                    through 3 am. 
CWR.................18 percent. 
Chance of lightning.32 percent. 
Min temperature.....64-69. 
Max humidity........76-82 percent. 
Wind (20 ft)........ 
 Slope/valley.......South winds 7 to 14 mph occasional gusts to
                    20 mph. Gusty and erratic winds expected near
                    thunderstorms. 
 Ridgetop...........South around 11 mph. 
Mixing height.......500 ft AGL overnight. 
Transport winds.....South around 15 mph. 

.SUNDAY...

Sky/weather.........Sunny. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....90-94. 
Min humidity........21-27 percent. 
Wind (20 ft)........ 
 Slope/valley.......Southwest winds 5 to 10 mph around sunrise, 
                    becoming northwest winds 7 to 14 mph with gusts
                    to 20 mph by 1pm. 
 Ridgetop...........Southwest around 7 mph in the morning becoming
                    northwest around 13 mph in the afternoon. 
Mixing height.......8900 ft AGL in the afternoon. 
Transport winds.....West around 19 mph. 

$$
Forecaster...Chambers
Requested by...Jonathan Mantello
Type of request...WILDFIRE
.TAG 2620063.2/BYZ
.DELDT 08/22/26
.FormatterVersion 2.0.0
.EMAIL mtmcc@firenet.gov