Weather Alert in Louisiana
Red Flag Warning issued February 21 at 11:47AM CST until February 22 at 3:00PM CST by NWS Lake Charles LA
AREAS AFFECTED: Avoyelles; Evangeline; St. Landry; Upper St. Martin; Lower St. Martin; Upper Iberia; Upper St. Mary; Lower Iberia; Lower St. Mary
DESCRIPTION: ...Fire weather warning in effect for Sunday... The National Weather Service in Lake Charles has issued a Red Flag Warning for low humidity and gusty winds, which is in effect from 9 AM to 3 PM CST Sunday. * AFFECTED AREA...Fire Weather Zone 029 Avoyelles, Fire Weather Zone 032 Evangeline, Fire Weather Zone 033 St. Landry, Fire Weather Zone 045 Upper St. Martin, Fire Weather Zone 055 Lower St. Martin, Fire Weather Zone 153 Upper Iberia, Fire Weather Zone 154 Upper St. Mary, Fire Weather Zone 253 Lower Iberia and Fire Weather Zone 254 Lower St. Mary. * TIMING...From 9 AM to 3 PM CST Sunday. * WINDS...North 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 20 percent. * TEMPERATURES...Up to 60. * LIGHTNING...None. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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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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