759
FNUS75 KBYZ 012053
FWSBYZ

Spot Forecast for Pryor Dump Inc 698...BIA
National Weather Service Billings MT
253 PM MDT Fri Aug 1 2025

Forecast is based on forecast start time of 1500 MDT on August 01.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

A strong thunderstorm is approaching the site from the southwest,
currently the storm is capable of producing penny size hail and
strong winds. The estimated time of arrival to the site is 30 to
40 minutes.

Showers and thunderstorms are possible this afternoon and through
the evening (3pm through 9pm). Some storms could be strong to
severe, with the main threats being hail up to half dollars,
strong and erratic wind gusts, and heavy rainfall. Surface winds
will shift to the west-southwest this evening. Relative humidity
recoveries will be good overnight, around or greater than 60%.


.REST OF TODAY...

Sky/weather.........Mostly cloudy. Scattered thunderstorms and
                    chance of showers.
CWR.................24 percent.
Chance of lightning.29 percent.
Max temperature.....84-88.
Min humidity........20-24 percent.
Wind (20 ft)........
 Slope/valley.......East winds 5 to 10 mph with gusts to around 18
                    mph. Gusty and erratic winds expected near
                    thunderstorms.
 Ridgetop...........Southeast around 10 mph.
Mixing height.......10700 ft AGL.
Transport winds.....West around 10 mph.

.TONIGHT...

Sky/weather.........Partly cloudy. Slight chance of rain showers
                    and isolated thunderstorms in the evening.
CWR.................10 percent.
Chance of lightning.16 percent.
Min temperature.....56-60.
Max humidity........61-66 percent.
Wind (20 ft)........
 Slope/valley.......West to southwest winds 5 to 10 mph with gusts to around
                    18 mph becoming southwest 5 to 6 mph
                    overnight. Gusty and erratic winds expected
                    near thunderstorms in the evening.
 Ridgetop...........Southwest 5 to 10 mph.
Mixing height.......Decreasing to 800 ft AGL overnight.
Transport winds.....Northwest around 9 mph.

$$
Forecaster...Matos
Requested by...Elizabeth Patten
Type of request...WILDFIRE
.TAG 2519020.0/BYZ
.DELDT 08/01/25
.FormatterVersion 2.0.0
.EMAIL mtbdc@firenet.gov