Weather Alert in Alabama
Flood Warning issued May 14 at 8:26PM CDT until May 15 at 7:00PM CDT by NWS Birmingham AL
AREAS AFFECTED: Greene, AL; Hale, AL; Marengo, AL; Sumter, AL
DESCRIPTION: ...The Flood Warning continues for the following rivers in Alabama... Tombigbee River At Demopolis Lock and Dam affecting Greene, Sumter, Marengo and Hale Counties. .Rises continue on the Tombigbee River approaching flood stage, and a flood warning remains in effect at Demopolis Lock and Dam. * WHAT...Minor flooding is forecast. * WHERE...Tombigbee River at Demopolis Lock and Dam. * WHEN...From late tonight to tomorrow evening. * ADDITIONAL DETAILS... - At 8:15 PM CDT Wednesday the stage was 67.3 feet. - Forecast...The river is expected to rise to a crest of 68.0 feet just after midnight tonight. It will then fall below flood stage tomorrow morning. - Flood stage is 68.0 feet.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && The next statement will be issued Thursday morning, or sooner if conditions warrant.
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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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