Weather Alerts for Montana

Recent Locations: Mukilteo, WA   Marble Rock, IA   Potomac, MT  
Current Alerts for Potomac, MT: Special Weather Statement

1. Lake Wind Advisory for: Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone

2. Special Weather Statement for: Flathead/Mission Valleys; Lower Clark Fork Region; Missoula/Bitterroot Valleys; Potomac/Seeley Lake Region

3. Winter Storm Warning for: Absaroka/Beartooth Mountains; Crazy Mountains

4. Winter Storm Warning for: Little Belt and Highwood Mountains; Gallatin and Madison County Mountains and Centennial Mountains

5. Winter Storm Warning for: Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains

6. Winter Storm Warning for: Southern Big Horn; Bighorn Canyon; Sheridan Foothills

7. Winter Storm Warning for: Southern Rosebud

8. Winter Storm Watch for: Custer; Fallon; Powder River; Carter

9. Winter Storm Watch for: Dawson; Prairie; Wibaux

10. Winter Weather Advisory for: Big Belt, Bridger and Castle Mountains

11. Winter Weather Advisory for: Butte/Blackfoot Region

12. Winter Weather Advisory for: Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Snowy and Judith Mountains

13. Winter Weather Advisory for: East Glacier Park Region; Southern Rocky Mountain Front; Upper Blackfoot and MacDonald Pass; Elkhorn and Boulder Mountains; Northwest Beaverhead County

14. Winter Weather Advisory for: Potomac/Seeley Lake Region

15. Winter Weather Advisory for: Ruby Mountains and Southern Beaverhead Mountains

16. Winter Weather Advisory for: Treasure; Northern Rosebud; Northern Big Horn; Northeastern Yellowstone; Southwestern Yellowstone

17. Winter Weather Advisory for: West Glacier Region

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

North American Water Vapor Map

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

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