Weather Alert in Texas
Flood Advisory issued August 11 at 11:54PM CDT until August 12 at 3:00AM CDT by NWS Fort Worth TX
AREAS AFFECTED: Lamar, TX
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of north central Texas, including the following county, Lamar. * WHEN...Until 300 AM CDT. * IMPACTS...Water over roadways. * ADDITIONAL DETAILS... - Doppler radar indicated heavy rain due to slow moving thunderstorms across northern Lamar County moving slowly southeast towards Paris. Radar estimates up to 3 inches of rain have fallen in the past couple of hours. Low lying, poor drainage areas, and some roads will experience minor flooding in the advisory area. - Some locations that will experience flooding include... Paris, Reno, Sumner, Lake Gibbons, Lake Crook, Pat Mayse Lake, Camp Maxey, Powderly, Arthur City, Forest Hill, Toco, Globe, Forest Chapel, Belk, Chicota, Garretts Bluff, Midcity, Brookston, Tigertown and East Direct.
INSTRUCTION: Be especially cautious at night when it is harder to recognize the dangers of flooding.
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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
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
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