Weather Alert in Oklahoma
Severe Thunderstorm Warning Severe Thunderstorm Watch
Flood Warning issued April 28 at 8:03PM CDT until April 30 at 2:25PM CDT by NWS Norman OK
AREAS AFFECTED: Comanche, OK; Cotton, OK
DESCRIPTION: ...The Flood Warning continues for the following rivers in Oklahoma... East Cache Creek near Walters affecting Cotton and Comanche Counties. * WHAT...Major flooding is occurring and major flooding is forecast. * WHERE...East Cache Creek near Walters. * WHEN...Until early Wednesday afternoon. * IMPACTS...At 27.0 feet, Valley-wide flooding of croplands... pastures... and local roads occurs in southern Comanche County and Cotton County and is accompanied by flood depths up to 6 feet with very dangerous currents. * ADDITIONAL DETAILS... - At 7:30 PM CDT Monday the stage was 27.5 feet. - Bankfull stage is 15.0 feet. - Forecast...The East Cache Creek is expected to fall below flood stage Wednesday morning and continue falling. - Flood stage is 21.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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