Weather Alert in Oklahoma
Flood Watch issued April 29 at 8:56AM CDT until May 2 at 2:30AM CDT by NWS Norman OK
AREAS AFFECTED: Murray; Carter; Johnston
DESCRIPTION: ...The National Weather Service in Norman OK has issued a Flood Watch for the following rivers in Oklahoma... Washita River near Dickson affecting Johnston, Murray and Carter Counties. * WHAT...Flooding is possible. * WHERE...Washita River near Dickson. * WHEN...From Wednesday afternoon to early Friday morning. * IMPACTS...At 34.0 feet, Flood depths up to 9 feet inundate areas along the Washita River... from near Davis in Murray County... to near Dickson in Carter County... to the headwaters of Lake Texoma in Johnston County. About 7 thousand acres of agricultural lands are covered. Any flooding on tributary creeks is increased by backwater from the Washita River. * ADDITIONAL DETAILS... - At 8:30 AM CDT Tuesday the stage was 17.6 feet. - Forecast...Flood stage may be reached early tomorrow afternoon. - Flood stage is 27.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: If you are in the watch area, remain alert to possible flooding. Additional information is available at www.weather.gov.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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