Weather Alert in South Dakota
Flood Warning issued July 30 at 9:11AM CDT by NWS Sioux Falls SD
AREAS AFFECTED: Brookings, SD; Hamlin, SD
DESCRIPTION: ...The Flood Warning continues for the following rivers in South Dakota... Big Sioux River near Bruce affecting Brookings County. Big Sioux River near Estelline affecting Brookings and Hamlin Counties. * WHAT...Moderate flooding is occurring. * WHERE...Big Sioux River near Estelline. * WHEN...Until further notice. * IMPACTS...At 1646.0 feet, water reaches the bottom of the bridge on 192nd Street. * ADDITIONAL DETAILS... - At 9:00 AM CDT Wednesday the stage was 1645.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 AM CDT Wednesday was 1645.9 feet. - Forecast...No forecast is available for this location. - Flood stage is 1644.0 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. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional forecast information is available at www.weather.gov/siouxfalls. The next statement will be issued by Thursday morning.
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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