Weather Alert in Louisiana
Flood Warning issued April 29 at 10:45AM CDT until May 11 at 1:00AM CDT by NWS New Orleans LA
AREAS AFFECTED: Ascension, 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...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Mississippi River at Donaldsonville. * WHEN...Until Sunday, May 11. * ADDITIONAL DETAILS... - At 10:00 AM CDT Tuesday the stage was 30.7 feet. - Bankfull stage is 23.0 feet. - Forecast...The river is expected to rise to a crest of 31.0 feet Thursday morning. It will then fall below flood stage Saturday, May 10. - Flood stage is 27.0 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 Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
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