Weather Alert in South Dakota
Flood Warning issued July 1 at 8:50AM CDT until July 6 at 1:00AM CDT by NWS Sioux Falls SD
AREAS AFFECTED: Brookings, SD; Moody, SD
DESCRIPTION: ...The Flood Warning is extended for the following rivers in South Dakota... Big Sioux River near Brookings affecting Brookings and Moody Counties. ...The Flood Warning continues for the following rivers in South Dakota... Medary Creek near Medary affecting Brookings County. Big Sioux River near Estelline affecting Brookings and Hamlin Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Big Sioux River near Brookings. * WHEN...Until early Sunday morning. * IMPACTS...At 10.5 feet, 473rd Avenue north of the gauge begins to flood. * ADDITIONAL DETAILS... - At 7:45 AM CDT Tuesday the stage was 10.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 AM CDT Tuesday was 10.3 feet. - Forecast...The river is expected to rise to a crest around 10.4 feet this afternoon. It will then fall below flood stage early 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 morning.
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Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
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