Weather Alert in Pennsylvania
Flood Watch issued June 14 at 2:30PM EDT until June 14 at 11:00PM EDT by NWS Pittsburgh PA
AREAS AFFECTED: Allegheny; Westmoreland; Westmoreland Ridges
DESCRIPTION: * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southwest and western Pennsylvania, including the following areas, in southwest Pennsylvania, Higher Elevations of Westmoreland. In western Pennsylvania, Allegheny and Westmoreland. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Storm drains and ditches may become clogged with debris. * ADDITIONAL DETAILS... - New rainfall this afternoon/evening may be able to produce 1 to 2 inches of precipitation with localized totals up to 3 inches in any training showers or storms. Urban areas may be more susceptible to flash flooding. - http://www.weather.gov/safety/flood
INSTRUCTION: N/A
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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
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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