Forecast Details for Alpine, AZ

Recent Locations: South Woodstock, VT Port Sanilac, MI Alpine, AZ

Current Alerts for Alpine, AZ: Extreme Heat Warning

Today: Showers and thunderstorms likely, mainly between 2pm and 5pm. Increasing clouds, with a high near 82. Light and variable wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 70%.

Tonight: A 50 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 53. West wind around 6 mph becoming light and variable.

Friday: Showers and possibly a thunderstorm after 11am. High near 81. South wind 3 to 7 mph. Chance of precipitation is 80%.

Friday Night: A 50 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 53. Southwest wind 3 to 6 mph.

Saturday: A slight chance of showers and thunderstorms between 8am and 11am, then showers and possibly a thunderstorm after 11am. High near 81. South wind 3 to 5 mph. Chance of precipitation is 80%.

Saturday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Mostly cloudy, with a low around 53. West wind around 6 mph becoming south after midnight. Chance of precipitation is 50%.

Sunday: A 40 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 80. South wind 6 to 8 mph.

Sunday Night: A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 52. Southwest wind around 5 mph.

Monday: A 50 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 79. South wind around 7 mph.

Monday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Mostly cloudy, with a low around 52. North wind 3 to 5 mph. Chance of precipitation is 40%.

Tuesday: Showers and thunderstorms likely. Partly sunny, with a high near 77. East wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 70%.

Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Southwest wind 3 to 6 mph.

Wednesday: Showers and thunderstorms. High near 73. South wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.

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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 are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

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