Weather Alert in Arkansas
Severe Thunderstorm Warning issued August 14 at 5:20PM CDT until August 14 at 6:00PM CDT by NWS Shreveport LA
AREAS AFFECTED: Union, AR; Claiborne, LA; Union, LA
DESCRIPTION: SVRSHV The National Weather Service in Shreveport has issued a * Severe Thunderstorm Warning for... Western Union County in south central Arkansas... Northwestern Union Parish in north central Louisiana... Northeastern Claiborne Parish in northwestern Louisiana... * Until 600 PM CDT. * At 520 PM CDT, Doppler radar indicates strong to severe thunderstorms across portions of Union County in southern Arkansas, and in portions of extreme northern Claiborne and Union Parishes in Louisiana. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... El Dorado, Norphlet, Junction City, Calion, Wesson, Lawson, Urbana, Lisbon, Catesville, Newell, Hillsboro, Lockhart, Kenova, Cairo and Aurelle.
INSTRUCTION: Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds.
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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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