Weather Alert in South Dakota
Flood Warning issued August 14 at 12:52PM CDT by NWS Aberdeen SD
AREAS AFFECTED: Brown, SD
DESCRIPTION: ...The Flood Warning continues for the following rivers in South Dakota... James River at Columbia affecting Brown County. .For sites with a river forecast, the forecast includes precipitation through the next 24 hours. Any future precipitation could affect the forecasts. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...James River at Columbia. * WHEN...Until further notice. * IMPACTS...At 13.0 feet, flooding of the lower lying agricultural areas begins. At 15.0 feet, significant amounts of agricultural lands are flooded. * ADDITIONAL DETAILS... - At 12:00 PM CDT Thursday the stage was 14.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:00 PM CDT Thursday was 14.8 feet. - Forecast...The river is expected to fall to 14.1 feet Thursday, August 21. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov/abr. The next statement will be issued by Friday evening at 900 PM CDT.
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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
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