Weather Alert in Wisconsin

Recent Locations: Sturgeon Bay, WI

Tornado Watch issued July 16 at 12:23PM CDT until July 16 at 6:00PM CDT by NWS Milwaukee/Sullivan WI

AREAS AFFECTED: Columbia, WI; Dane, WI; Dodge, WI; Fond du Lac, WI; Green, WI; Green Lake, WI; Iowa, WI; Jefferson, WI; Kenosha, WI; Lafayette, WI; Marquette, WI; Milwaukee, WI; Ozaukee, WI; Racine, WI; Rock, WI; Sauk, WI; Sheboygan, WI; Walworth, WI; Washington, WI; Waukesha, WI

DESCRIPTION: THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 517 IN EFFECT UNTIL 6 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN WISCONSIN THIS WATCH INCLUDES 20 COUNTIES IN EAST CENTRAL WISCONSIN FOND DU LAC SHEBOYGAN IN SOUTH CENTRAL WISCONSIN COLUMBIA DANE GREEN GREEN LAKE IOWA LAFAYETTE MARQUETTE ROCK SAUK IN SOUTHEAST WISCONSIN DODGE JEFFERSON KENOSHA MILWAUKEE OZAUKEE RACINE WALWORTH WASHINGTON WAUKESHA THIS INCLUDES THE CITIES OF ARGYLE, BARABOO, BARNEVELD, BEAVER DAM, BELMONT, BELOIT, BENTON, BERLIN, BLANCHARDVILLE, BRODHEAD, BROOKFIELD, CEDARBURG, COLUMBUS, DARLINGTON, DELAVAN, DODGEVILLE, EAST TROY, ELKHORN, ENDEAVOR, FOND DU LAC, FORT ATKINSON, GERMANTOWN, GRAFTON, HARTFORD, HOWARDS GROVE, JANESVILLE, JEFFERSON, KENOSHA, LAKE GENEVA, LAKE WISCONSIN, LODI, MADISON, MARKESAN, MAYVILLE, MENOMONEE FALLS, MEQUON, MILWAUKEE, MINERAL POINT, MONROE, MONTELLO, MUSKEGO, NESHKORO, NEW BERLIN, OOSTBURG, OXFORD, PLYMOUTH, PORTAGE, PRAIRIE DU SAC, PRINCETON, RACINE, REEDSBURG, SAUK CITY, SHEBOYGAN FALLS, SHULLSBURG, WATERTOWN, WAUKESHA, WAUPUN, WEST BEND, WESTFIELD, AND WHITEWATER.

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

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