Weather Alert in South Dakota
Flood Warning issued July 1 at 10:37AM CDT until July 6 at 10:00AM CDT by NWS Sioux Falls SD
AREAS AFFECTED: Brookings, SD; Moody, SD
DESCRIPTION: ...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in South Dakota... Big Sioux River near Brookings affecting Brookings and Moody Counties. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Big Sioux River near Brookings. * WHEN...Until late Sunday morning. * IMPACTS...At 11.0 feet, Some farm outbuildings begin to flood. * ADDITIONAL DETAILS... - At 9:45 AM CDT Tuesday the stage was 10.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Tuesday was 10.4 feet. - Forecast...The river is expected to rise to a crest around 10.8 feet early tomorrow afternoon. It will then fall below flood stage late Saturday morning. - Flood stage is 9.0 feet. - Stay up to date with the latest river observations and forecasts at: www.water.noaa.gov
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional forecast information is available at www.weather.gov/siouxfalls. The next statement will be issued by Wednesday afternoon.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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