Weather Alert in Minnesota
Flood Watch issued July 4 at 2:58AM CDT until July 5 at 1:00PM CDT by NWS Duluth MN
AREAS AFFECTED: Koochiching; North St. Louis; North Itasca
DESCRIPTION: * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...In Minnesota, in north central Minnesota, Koochiching and North Itasca Counties. In northeast Minnesota, North St. Louis County. This includes the Tribal Lands of the Bois Forte Band, Nett Lake and, Deer Creek areas. Other locations including Voyageurs National Park. This also includes the Boundary Waters western area. * WHEN...From this afternoon through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - A slow moving cold front will bring heavy rainfall which may lead to rapid runoff and flash flooding late this afternoon into Saturday. Heavy rainfall amounts of 1 to 3 inches are expected, with localized amounts in excess of 3 inches possible. - Flood safety information can be found at www.weather.gov/safety/flood.
INSTRUCTION: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
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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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