Weather Alert in Pennsylvania
Flash Flood Warning issued June 14 at 11:22PM EDT until June 15 at 1:00AM EDT by NWS Pittsburgh PA
AREAS AFFECTED: Allegheny, PA; Washington, PA
DESCRIPTION: FFWPBZ The National Weather Service in Pittsburgh has extended the * Flash Flood Warning for... Southwestern Allegheny County in southwestern Pennsylvania... Central Washington County in southwestern Pennsylvania... * Until 100 AM EDT. * At 1122 PM EDT, emergency management and the public reported flash flooding due to thunderstorms that produced heavy rain across the warned area. Between 1 and 4 inches of rain have fallen. Flooding impacts will continue, but slowly subside as little to no additional rainfall is expected. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Emergency management reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Pittsburgh, Mount Lebanon, Bethel Park, McMurray, Washington, Canonsburg, Gastonville, West Mifflin, Baldwin, Upper St. Clair, Scott Township, Whitehall, South Park Township, Robinson Township, Cecil-Bishop, Jefferson Hills, Brentwood, Dormont, Castle Shannon and Pleasant Hills.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads.
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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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