Weather Alert in Louisiana
Flood Warning issued April 29 at 10:45AM CDT until May 9 at 10:00AM CDT by NWS New Orleans LA
AREAS AFFECTED: St. Charles, LA; St. James, LA; St. John The Baptist, LA
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Louisiana... Mississippi River At Donaldsonville affecting Ascension Parish. Mississippi River At Baton Rouge affecting West Baton Rouge and East Baton Rouge Parishes. Mississippi River At Red River Landing affecting Pointe Coupee, West Feliciana and East Baton Rouge Parishes. ...The Flood Warning continues for the following rivers in Louisiana... Mississippi River At Reserve affecting St. James, St. Charles and St. John The Baptist Parishes. For the Lower Mississippi River...including Red River Landing, Baton Rouge, Donaldsonville, Reserve...Major flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Reserve. * WHEN...Until Friday, May 09. * IMPACTS...At 24.0 feet, Slow-bell procedures will be enacted for river transportation. * ADDITIONAL DETAILS... - At 9:00 AM CDT Tuesday the stage was 23.5 feet. - Bankfull stage is 15.0 feet. - Forecast...The river is expected to rise to a crest of 23.7 feet this evening. It will then fall below flood stage Friday, May 09. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov/lix. Click on the Rivers and Lakes menu for forecasts and observations. The next statement will be issued late tonight at 245 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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