Weather Alert in Oklahoma
Flood Warning issued April 30 at 2:13AM CDT until May 2 at 1:00AM CDT by NWS Norman OK
AREAS AFFECTED: Cleveland, OK; McClain, OK
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Oklahoma... Canadian River at Norman affecting Cleveland and McClain Counties. * WHAT...Minor flooding is forecast. * WHERE...Canadian River at Norman. * WHEN...From this evening to early Friday morning. * IMPACTS...At 96.0 feet, Flooding to depths of 2 feet occurs over areas along and near the river on the Cleveland-McClain County border from near Moore and Norman... to areas near Noble. * ADDITIONAL DETAILS... - At 1:00 AM CDT Wednesday the stage was 88.6 feet. - Bankfull stage is 94.0 feet. - Forecast...The Canadian River is expected to rise above flood stage this evening to a crest of 95.6 feet tomorrow morning. It will then fall below flood stage tomorrow evening. - Flood stage is 94.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. 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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