Weather Alert in South Dakota
Flood Warning issued August 23 at 7:20AM CDT until August 25 at 10:00PM CDT by NWS Aberdeen SD
AREAS AFFECTED: Hamlin, SD
DESCRIPTION: ...Forecast flooding changed from Minor to Moderate severity for the following rivers in South Dakota... Big Sioux River Near Castlewood affecting Hamlin County. .For sites with a river forecast, the forecast includes precipitation through the next 24 hours. Any future precipitation could affect the forecasts. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Big Sioux River near Castlewood. * WHEN...Until late Monday evening. * IMPACTS...At 11.0 feet, Significant amounts of pasture and other agricultural lands will be flooded. * ADDITIONAL DETAILS... - At 6:45 AM CDT Saturday the stage was 11.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 6:45 AM CDT Saturday was 11.0 feet. - Forecast...The river is expected to rise to a crest of 11.1 feet this afternoon. It will then fall below flood stage Monday afternoon. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: 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 Sunday afternoon at 330 PM CDT.
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Weather Topic: What are Cirrocumulus Clouds?
Home - Education - Cloud Types - Cirrocumulus Clouds
Next Topic: Cirrostratus Clouds
Cirrocumulus clouds form at high altitudes (usually around 5 km)
and have distinguishing characteristics displayed in a fine layer of
small cloud patches. These small cloud patches are sometimes referred to as
"cloudlets" in relation to the whole cloud formation.
Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the
water droplets in the cloud freeze into ice crystals and the cloud becomes a
cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud
formations generally pass rapidly.
Next Topic: Cirrostratus Clouds
Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
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