Weather Alert in Michigan

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Current Alerts for Troy, MI: Special Weather Statement

Special Weather Statement issued February 22 at 4:50AM EST by NWS Detroit/Pontiac MI

AREAS AFFECTED: Shiawassee; Genesee; Lapeer; St. Clair; Livingston; Oakland; Macomb; Washtenaw; Wayne

DESCRIPTION: WEATHER... * Light snow will persist across the area this morning, with additional accumulation up to half an inch in some locations. * Air temperatures will range between 25 and 29 degrees. IMPACTS... * Accumulating snow may lead to slippery roads particularly on bridges, exit ramps and overpasses. * Light snow is not expected to cause a widespread reduction in visibility.

INSTRUCTION: * The combination of light snow and cold temperatures will result in localized slippery conditions and variable traffic rates throughout th county. Motorists are urged to use caution and account for the variable driving conditions by allowing extra time. * Prepare, plan and stay informed. Visit http://go.usa.gov/c7kkP

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Condensation Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

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