Weather Alert in Pennsylvania
Flood Watch issued February 19 at 11:02AM EST until February 20 at 1:00PM EST by NWS State College PA
AREAS AFFECTED: Cambria; Blair; Huntingdon; Somerset; Bedford; Fulton
DESCRIPTION: * WHAT...Flooding caused by ice jams is possible. * WHERE...A portion of central Pennsylvania, including the following counties, Bedford, Blair, Cambria, Fulton, Huntingdon and Somerset. * WHEN...Through Friday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Significant ice breakup on area rivers and creeks has been observed over the last few days as a result of an extended stretch of mild temperatures. Multiple rounds of heavy rain and embedded thunderstorms this afternoon and overnight could produce 1-1.5" of rain in the watch area. This heavy rainfall combined with snowmelt will produce increased streamflows and an elevated risk of ice jam flooding. - http://www.weather.gov/safety/flood
INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
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Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
Weather Topic: What is Drizzle?
Home - Education - Precipitation - Drizzle
Next Topic: Evaporation
Drizzle is precipitation in the form of water droplets which are
smaller than raindrops.
Drizzle is characterized by fine, gently falling droplets and typically does not
impact human habitation in a negative way. The exception to this is freezing drizzle,
a condition where drizzle freezes immediately upon reaching earth's surface.
Freezing drizzle is still less dangerous than freezing rain, but can
potentially result in hazardous road conditions.
Next Topic: Evaporation
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