Weather Alert in Arkansas
Flood Warning issued May 1 at 3:15PM CDT until May 3 at 11:48AM CDT by NWS Tulsa OK
AREAS AFFECTED: Crawford, AR; Sebastian, AR
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Arkansas... Arkansas River at Van Buren affecting Crawford and Sebastian Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Arkansas River at Van Buren. * WHEN...Until late Saturday morning. * IMPACTS...At 23.0 feet, minor lowland flooding occurs along the shoreline from the I-540 bridge east towards Lavaca. * ADDITIONAL DETAILS... - At 2:00 PM CDT Thursday the stage was 22.5 feet. - Forecast...The river is expected to rise to a crest of 23.1 feet early tomorrow afternoon. It will then fall below flood stage early Saturday morning. The river may rise again to near flood stage on Monday. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: N/A
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Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
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