Weather Alert in Pennsylvania
Flood Warning issued February 23 at 5:52AM EST by NWS State College PA
AREAS AFFECTED: Dauphin, PA
DESCRIPTION: ...The National Weather Service in State College PA has issued a Flood Warning for the following rivers in Pennsylvania... Swatara Creek above Middletown affecting Dauphin County. .An ice jam will cause water to infiltrate the lowlands along the river. * WHAT...Minor flooding is occurring. * WHERE...Swatara Creek above Middletown. * WHEN...From early this morning until further notice. * IMPACTS...At 11.0 feet, Minor overbank flooding begins near the Vine Street Bridge downstream to the Susquehanna River. At 12.0 feet, Both banks overflow upstream of the Vine Street Bridge and several basements are affected. * ADDITIONAL DETAILS... - At 5:30 AM EST Monday the stage was 11.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:30 AM EST Monday was 11.8 feet. - Forecast...Ice jam flooding is inherently difficult to predict. Be prepared for rapid changes in river levels depending on ice jam behavior. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by this afternoon.
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Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
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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.
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Weather Topic: What are Cirrostratus Clouds?
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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.
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