Weather Alert in Minnesota
Winter Storm Warning issued April 3 at 2:23AM CDT until April 4 at 10:00PM CDT by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Todd; Morrison
DESCRIPTION: ...MIXED WINTER EVENT WITH SNOW, SLEET, AND ICE ACCUMULATION FRIDAY INTO SATURDAY... .A mixed precipitation event will unfold across Minnesota into Wisconsin today into tomorrow. Across parts of central Minnesota this will mainly fall as snow with up to 7 inches possible. Farther south a band of freezing rain and sleet from southwest Minnesota to northwest Wisconsin will see ice accumulations up to two tenths of an inch. There will be a sharp cutoff in these ice accumulations, as this will be very sensitive to where the freezing line sets up. So additional shifts in the southward extent maybe needed later in the day. * WHAT...Heavy mixed precipitation expected. Total snow accumulations between 4 and 7 inches, sleet accumulations up to one tenth of an inch, and ice accumulations up to one tenth of an inch. * WHERE...Morrison and Todd Counties. * WHEN...From 4 PM this afternoon to 10 PM CDT Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Friday evening commute.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 5 1 1 or visit 511mn.org for road conditions.
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Weather Topic: What is Rain?
Home - Education - Precipitation - 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
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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