Weather Alert in Minnesota
Flood Warning issued August 25 at 10:01AM CDT by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Chippewa, MN; Lac qui Parle, MN; Yellow Medicine, MN
DESCRIPTION: ...The Flood Warning continues for the following rivers in Minnesota... Minnesota River at Henderson MN19 affecting Scott, Sibley and Le Sueur Counties. Minnesota River near Jordan affecting Scott, Sibley and Carver Counties. Minnesota River at Granite Falls HWY 212 affecting Chippewa, Yellow Medicine and Renville Counties. Minnesota River at Morton affecting Renville and Redwood Counties. Minnesota River at Montevideo affecting Chippewa, Yellow Medicine and Lac qui Parle Counties. ...The Flood Warning is extended for the following rivers in Minnesota... Minnesota River at New Ulm affecting Nicollet, Blue Earth and Brown Counties. .Rivers are at crest or are continue to recede. No significant precipitation is in the forecast over the next several days. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Minnesota River at Montevideo. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, Storm sewers may need to be plugged to prevent water from backing up into streets. * ADDITIONAL DETAILS... - At 900 AM CDT Monday, the stage was 15.9 feet. - River levels are gradually falling. - Forecast...The river is expected to fall to 15.3 feet Monday, September 01. - Flood stage is 14.0 feet. - Flood History...This crest compares to a previous crest of 15.9 feet on 07/11/1995.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks.
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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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