Weather Alert in Arkansas
Flood Warning issued May 1 at 9:10AM CDT by NWS Little Rock AR
AREAS AFFECTED: Independence, AR; Jackson, AR; Lawrence, AR
DESCRIPTION: ...The Flood Warning continues for the following rivers in Arkansas... Black River At Black Rock affecting Jackson, Lawrence and Independence Counties. For the Black River...including Corning, Pocahontas, Black Rock... Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Black River at Black Rock. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, Low lying cultivated land and pastures in Lawrence, Jackson, and Independence counties flood. * ADDITIONAL DETAILS... - At 8:00 AM CDT Thursday the stage was 17.6 feet. - Forecast...The river is expected to rise to a crest of 18.5 feet Friday morning. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. River forecasts are based on current conditions and rainfall forecasted to occur over the next 24 hours. During periods of flooding...Evening forecasts are reissued with updated rainfall forecasts. Observed and forecasted stage data plots are available on our Advanced Hydrologic Prediction Service web page at... www.weather.gov/lzk Under the Current Conditions section...Select River and Lakes AHPS. The next statement will be issued Friday morning at 915 AM CDT.
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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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