Showers and thunderstorms are expected over the advisory area this afternoon through tonight. Half an inch to locally an inch of precipitation is expected from this activity. This precipitation will fall on snowpack above 8500 feet, resulting in additional snowmelt runoff. With streams and creeks already running high, this additional runoff will likely push some over bankfull resulting in flooding. Which streams flood and how impactful the flooding will be is dependent on where the heavier thunderstorms develop and how much snowpack is melted by the rainfall.
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WHAT: Small stream flooding caused by excessive rainfall and snowmelt is expected.
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WHERE: Portions of central and south central Montana, including the following counties, in central Montana, southwestern Wheatland. In south central Montana, southwestern Carbon, Park, southwestern Stillwater and Sweet Grass.
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WHEN: Until 630 PM MDT Monday.
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IMPACTS: Rapid rises on small streams and creeks originating in the mountains resulting in minor flooding adjacent to waterways. Runoff may flood roadways resulting in restriction to travel and possible foothills road damage.
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ADDITIONAL DETAILS:
- At 1230 PM MDT, Streams are already running high with runoff, and thunderstorms are expected this afternoon through tonight. Rainfall forecast shows half an inch to locally an inch of rainfall is possible with thunderstorms through tonight. Above 8500 feet this rain will fall on the snowpack resulting in increased snowmelt and extra runoff in addition to the precipitation forecast. This will cause rapid rises and small stream and creek flooding in the advisory area.
- Some locations in the flood advisory include, Red Lodge, Clyde Park, Absarokee, Bearcreek, Chico Hot Springs, Mc Leod, Springdale, Nye, Pine Creek, Dean, Mystic Lake, Chico, Alpine, Emigrant, Melville, Fishtail, Jardine, Wilsall and Roscoe.
- Campgrounds adjacent to waterways in mountains and foothills.
- http://www.weather.gov/safety/flood
Showers and thunderstorms are expected over the advisory area this afternoon through tonight. Half an inch to locally an inch of precipitation is expected from this activity. This precipitation will fall on snowpack above 8500 feet, resulting in additional snowmelt runoff. With streams and creeks already running high, this additional runoff will likely push some over bankfull resulting in flooding. Which streams flood and how impactful the flooding will be is dependent on where the heavier thunderstorms develop and how much snowpack is melted by the rainfall. * WHAT...Small stream flooding caused by excessive rainfall and snowmelt is expected. * WHERE...Portions of central and south central Montana, including the following counties, in central Montana, southwestern Wheatland. In south central Montana, southwestern Carbon, Park, southwestern Stillwater and Sweet Grass. * WHEN...Until 630 PM MDT Monday. * IMPACTS...Rapid rises on small streams and creeks originating in the mountains resulting in minor flooding adjacent to waterways. Runoff may flood roadways resulting in restriction to travel and possible foothills road damage. * ADDITIONAL DETAILS... - At 1230 PM MDT, Streams are already running high with runoff, and thunderstorms are expected this afternoon through tonight. Rainfall forecast shows half an inch to locally an inch of rainfall is possible with thunderstorms through tonight. Above 8500 feet this rain will fall on the snowpack resulting in increased snowmelt and extra runoff in addition to the precipitation forecast. This will cause rapid rises and small stream and creek flooding in the advisory area. - Some locations in the flood advisory include... Red Lodge, Clyde Park, Absarokee, Bearcreek, Chico Hot Springs, Mc Leod, Springdale, Nye, Pine Creek, Dean, Mystic Lake, Chico, Alpine, Emigrant, Melville, Fishtail, Jardine, Wilsall and Roscoe. - Campgrounds adjacent to waterways in mountains and foothills. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads find an alternate route. Roads and driveways may be damaged or washed out in places. Be especially cautious at night when it is harder to recognize the dangers of flooding. Stay away or be swept away. Stream banks and culverts can become unstable and unsafe. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks. Please report observed flooding to local emergency officials and request they pass the information to the National Weather Service in Billings.
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