Weather Alert in Pennsylvania
Flood Warning issued July 1 at 10:23PM EDT until July 2 at 8:45PM EDT by NWS State College PA
AREAS AFFECTED: Lancaster, PA
DESCRIPTION: ...The Flood Warning continues for the following rivers in Pennsylvania... Swatara Creek at Harper Tavern affecting Lebanon and Schuylkill Counties. Conestoga River at Lancaster affecting Lancaster County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Conestoga River at Lancaster. * WHEN...Until tomorrow evening. * IMPACTS...At 11.0 feet, Grofftown Road will flood. At 13.0 feet, several homes are affected by high water. At 14.0 feet, the footbridge near the confluence of Stauffer Run begins to flood. * ADDITIONAL DETAILS... - At 9:15 PM EDT Tuesday the stage was 11.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:15 PM EDT Tuesday was 12.4 feet. - Forecast...The river is expected to rise to a crest of 12.2 feet tomorrow morning. It will then fall below flood stage early tomorrow afternoon. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 11.7 feet on 06/21/2003. - http://www.weather.gov/safety/flood
INSTRUCTION: Be especially cautious at night when it is harder to recognize the dangers of flooding. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. Most flood related deaths occur in automobiles. Do not attempt to cross water covered bridges, dips, or low water crossings. Never try to cross a flowing stream, even a small one, on foot. To escape rising water find another route over higher ground. Additional information is available at www.weather.gov. The next statement will be issued Wednesday morning.
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Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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