FNUS75 KBYZ 192043
FWSBYZ

Spot Forecast for Mystic Lake SAR...Stillwater County DES
National Weather Service Billings MT
243 PM MDT Tue May 19 2026

Forecast is based on forecast start time of 1500 MDT on May 19. 
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Precipitation chances increase Wednesday afternoon. The best 
chances (90-100%) arrive Wednesday night/Thursday morning. Snow, 
rain, and thunderstorms are all possible Wednesday before 
precipitation changes over to all snow Wednesday night. Heavy snow
is expected with 6-9 inches on the ground by Thursday afternoon. 
No strong winds are forecast. Torgerson 

.REST OF TODAY...

Sky/weather.........Mostly cloudy. 
Chance of pcpn......10 percent. 
Max temperature.....43-47. 
Min humidity........43-47 percent. 
Surface winds (mph).West winds 6 to 9 mph with gusts to around 20 
                    mph. 
 Ridgetop...........West around 20 mph. 

.TONIGHT...

Sky/weather.........Mostly cloudy becoming partly cloudy. 
                    Slight chance of rain showers and snow showers 
                    in the evening. 
Chance of pcpn......20 percent. 
Min temperature.....23-27. 
Max humidity........62-66 percent. 
Surface winds (mph).Southwest winds 6 to 13 mph gusting up to 20 mph. 
 Ridgetop...........West around 20 mph. 

.WEDNESDAY...

Sky/weather.........Mostly cloudy. Slight chance of rain showers and 
                    snow showers in the morning, chance of showers
				 	and thunderstorms in the afternoon. 
Chance of pcpn......80 percent. 
Max temperature.....45-49. 
Min humidity........56-60 percent. 
Surface winds (mph).West winds 6 to 11 mph. Gusts up to 15 mph. 
 Ridgetop...........West around 17 mph. 

$$
Forecaster...Torgerson
Requested by...David Stamey
Type of request...SAR
.TAG 2614048.0/BYZ
.DELDT 05/19/26
.FormatterVersion 2.0.0
.EMAIL dstamey@stillwatercountymt.gov