Forecast Details for Big Sky, MT

Recent Locations: Portland, OH   Detroit Lakes, MN   Big Sky, MT  
Current Alerts for Big Sky, MT: High Wind Warning
Tonight: Snow likely, mainly between 11pm and 5am. Mostly cloudy, with a low around 27. West southwest wind 9 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
Wednesday: Snow, mainly before noon. The snow could be heavy at times. Patchy blowing snow after 8am. High near 33. West wind 16 to 21 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night: Mostly clear, with a low around 17. West southwest wind 8 to 14 mph, with gusts as high as 32 mph.
Thursday: Sunny, with a high near 35. Southwest wind 10 to 17 mph, with gusts as high as 37 mph.
Thursday Night: Mostly clear, with a low around 22. South southwest wind 14 to 16 mph, with gusts as high as 33 mph.
Friday: Sunny, with a high near 38. South southwest wind 11 to 14 mph, with gusts as high as 34 mph.
Friday Night: Mostly clear, with a low around 21. Southwest wind 6 to 10 mph, with gusts as high as 30 mph.
Saturday: Mostly sunny, with a high near 38. Southwest wind 5 to 7 mph, with gusts as high as 21 mph.
Saturday Night: Partly cloudy, with a low around 21.
Sunday: A slight chance of snow. Mostly sunny, with a high near 39.
Sunday Night: Partly cloudy, with a low around 21.
Monday: Sunny, with a high near 40.
Monday Night: Mostly clear, with a low around 21.
Tuesday: Sunny, with a high near 41.

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Current U.S. National Radar--Current

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Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Precipitation Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

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