Weather Alert in Michigan

Recent Locations: Roscommon, MI  
Current Alerts for Roscommon, MI: Special Weather Statement

Special Weather Statement issued February 15 at 8:12PM EST by NWS Gaylord MI

AREAS AFFECTED: Emmet; Cheboygan; Presque Isle; Leelanau; Antrim; Otsego; Montmorency; Alpena; Benzie; Grand Traverse; Kalkaska; Crawford; Oscoda; Alcona; Manistee; Wexford; Missaukee; Roscommon; Ogemaw; Iosco; Western Chippewa; Central Chippewa; Southeast Chippewa; Western Mackinac; Eastern Mackinac; Mackinac Island/Bois Blanc Island; Beaver Island and surrounding islands; Charlevoix

DESCRIPTION: Dense fog has been gradually making inroads from Lake Michigan into coastal areas of northern Michigan this evening, along with additional areas of dense fog across the eastern UP and northeast lower. Visibilities of a quarter mile or less have been observed in localized areas. Locally dense fog will continue into this evening at times across portions of eastern upper and northern lower Michigan. Untreated roadways may be slick in spots due to freezing fog. If you encounter dense fog while traveling, use low beam headlights and increase following distance.

INSTRUCTION: N/A

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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

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

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