Weather Alert in Iowa
Flood Watch issued July 31 at 4:57AM CDT until August 3 at 10:00AM CDT by NWS Des Moines IA
AREAS AFFECTED: Kossuth; Humboldt
DESCRIPTION: ...The Flood Watch continues for the following rivers in Iowa... East Fork Des Moines River near Algona affecting Humboldt and Kossuth Counties. * WHAT...Flooding is possible. * WHERE...The East Fork Des Moines River near Algona, or from Buffalo Creek near Burt to Lotts Creek near Livermore. * WHEN...From this evening to late Sunday morning. * IMPACTS...At 17.0 feet, Water threatens US 169 south of Algona and affects some rural roads. * ADDITIONAL DETAILS... - At 4:15 AM CDT Thursday the stage was 16.3 feet. - Forecast...Flood stage may be reached late this evening. - Flood stage is 17.0 feet.
INSTRUCTION: For the latest waterway observations and forecasts refer to weather.gov/desmoines/water. River forecasts include observed precipitation plus forecast precipitation over the next 48 hours.
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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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