Weather Alert in Texas
Flood Warning issued June 13 at 9:33AM CDT by NWS Houston/Galveston TX
AREAS AFFECTED: Brazos, TX; Grimes, TX; Madison, TX
DESCRIPTION: ...The National Weather Service in Houston/Galveston TX has issued a Flood Warning for the following rivers in Texas... Navasota River near Normangee affecting Brazos, Madison and Grimes Counties. For the Navasota River...including Normangee...Major flooding is forecast. * WHAT...Major flooding is forecast. * WHERE...Navasota River near Normangee. * WHEN...From this evening until further notice. * IMPACTS...At 20.0 feet, Major lowland flooding begins with massive inundation of the floodplain as the river is close to 2 miles wide and OSR become inundated one half mile on the right bank and 1.5 miles on the left bank. * ADDITIONAL DETAILS... - At 9:00 AM CDT Friday the stage was 13.2 feet. - Bankfull stage is 12.0 feet. - Forecast...The river is expected to rise above flood stage late this evening and continue rising to a crest of 22.6 feet late tomorrow evening. - Flood stage is 15.0 feet. - Flood History...This crest compares to a previous crest of 22.7 feet on 05/01/2009. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. Additional information is available at www.weather.gov/hgx. The next statement will be issued late tonight at 345 AM CDT.
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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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