Weather Alert in South Dakota
Flood Warning issued June 27 at 1:21AM CDT by NWS Aberdeen SD
AREAS AFFECTED: Grant, SD
DESCRIPTION: ...The Flood Warning continues for the following rivers in South Dakota... North Fork Yellow Bank River near Milbank affecting Grant County. .For sites with a river forecast, the forecast includes precipitation through the next 24 hours. Any future precipitation could affect the forecasts. * WHAT...Minor flooding is occurring. * WHERE...North Fork Yellow Bank River near Milbank. * WHEN...Until further notice. * IMPACTS...At 1042.0 feet, water reaches the bottom of the bridge on 487th Avenue. At 1044.0 feet, 487th Avenue begins to flood. * ADDITIONAL DETAILS... - At 12:15 AM CDT Friday the stage was 1043.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:15 AM CDT Friday was 1043.0 feet. Recent trends show the river appears to be cresting. - Flood stage is 1041.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Motorists should not attempt to drive around barricades or drive cars through flooded areas. Be especially cautious at night when it is harder to recognize the dangers of flooding. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/abr. The next statement will be issued by Saturday morning at 930 AM CDT.
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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
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