Weather Alert in Louisiana
Severe Thunderstorm Warning issued February 15 at 12:08AM CST until February 15 at 12:45AM CST by NWS New Orleans LA
AREAS AFFECTED: Tangipahoa, LA; Washington, LA; Pike, MS; Walthall, MS
DESCRIPTION: At 1208 AM CST, severe thunderstorms were located along a line extending from near Jayess to 9 miles north of Mount Herman to near Kentwood, moving east at 40 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Franklinton, Kentwood, Tylertown, Osyka, Salem, Dexter, Mount Herman, and Tangipahoa. This includes the following Interstates... Interstate 55 in Louisiana between mile markers 58 and 66. Interstate 55 in Mississippi between mile markers 1 and 5.
INSTRUCTION: A Tornado Watch remains in effect until 200 AM CST for southeastern Louisiana...and southern Mississippi. A Tornado Watch also remains in effect until 500 AM CST for southeastern Louisiana...and southern Mississippi. Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
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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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