Weather Alert in Wisconsin

Recent Locations: Ida, MI   Two Rivers, WI  

Special Weather Statement issued April 2 at 7:30PM CDT by NWS Green Bay WI

AREAS AFFECTED: Winnebago; Calumet; Manitowoc

DESCRIPTION: At 729 PM CDT, Doppler radar was tracking strong thunderstorms extending from near Brandon to near Campbellsport. Movement was northeast at 50 mph. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Strong thunderstorms will be near... Oshkosh, St Anna, and Central Lake Winnebago around 750 PM CDT. Chilton around 800 PM CDT. St. Nazianz around 805 PM CDT. Valders and Northern Lake Winnebago around 810 PM CDT. Brillion and High Cliff State Park around 815 PM CDT. Appleton around 820 PM CDT. Other locations impacted by these storms include Pickett, Kiel, Millhome, Newtonberg, Brothertown, St John, Potter, Brant, Clarks Mills, and Uw Fox Valley.

INSTRUCTION: If outdoors, consider seeking shelter inside a building.

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Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow

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