Weather Alert in Arkansas
Flood Warning issued April 23 at 8:15PM CDT until April 29 at 7:00AM CDT by NWS Memphis TN
AREAS AFFECTED: St. Francis, AR
DESCRIPTION: ...The Flood Warning continues for the following rivers in Arkansas...Missouri... St Francis River Diversion Ditch at Madison Saint Francis River near Saint Francis L'Anguille River at Palestine For the Saint Francis River...including Saint Francis, Lake City, Madison...Minor flooding is forecast. For the L'anguille River...including Palestine...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...St Francis River Diversion Ditch at Madison. * WHEN...Until Tuesday morning. * IMPACTS...At 35.0 feet, Homes and numerous secondary roads are threatened. * ADDITIONAL DETAILS... - At 8:00 PM CDT Wednesday the stage was 34.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Wednesday was 34.9 feet. - Forecast...The river is expected to fall below flood stage Monday morning and continue falling to 31.6 feet Monday evening. - Flood stage is 32.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at weather.gov/memphis. The next statement will be issued as needed.
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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
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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