Forecast Details for Casper, WY

Recent Locations: Randolph, NJ Hatchechubbee, AL Casper, WY

Current Alerts for Casper, WY: High Wind Warning Red Flag Warning

This Afternoon: Mostly sunny, with a high near 72. Very windy, with a west southwest wind around 38 mph, with gusts as high as 55 mph.

Tonight: Partly cloudy, with a low around 43. Very windy, with a southwest wind 28 to 38 mph, with gusts as high as 55 mph.

Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 53. Very windy, with a west southwest wind 26 to 36 mph decreasing to 16 to 26 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 50%.

Thursday Night: Rain showers before 9pm, then rain and snow showers between 9pm and midnight, then snow showers after midnight. Some thunder is also possible. Low around 28. Breezy, with a west wind 8 to 17 mph becoming north northeast after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Friday: Snow showers likely, mainly before noon. Partly sunny, with a high near 48. North wind 10 to 14 mph becoming southwest in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday Night: A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 25. Northeast wind 6 to 13 mph, with gusts as high as 22 mph.

Saturday: A slight chance of rain and snow showers after noon. Partly sunny, with a high near 54. Northeast wind 6 to 11 mph. Chance of precipitation is 20%.

Saturday Night: A chance of rain showers before midnight, then rain likely, possibly mixed with snow showers. Mostly cloudy, with a low around 30. Chance of precipitation is 70%.

Sunday: Rain and snow showers. Some thunder is also possible. High near 43. Chance of precipitation is 90%.

Sunday Night: Snow showers likely, possibly mixed with rain before midnight, then a chance of snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.

Monday: A chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a high near 49.

Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 29.

Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 58.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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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.

Weather Topic: What is Precipitation?

Home - Education - 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