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 Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
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