Weather Alert in Pennsylvania
Flood Warning issued July 1 at 1:22AM EDT until July 1 at 5:36PM EDT by NWS State College PA
AREAS AFFECTED: Lancaster, PA
DESCRIPTION: ...The National Weather Service in State College PA has issued a Flood Warning for the following rivers in Pennsylvania... Conestoga River at Lancaster affecting Lancaster County. * WHAT...Minor flooding is forecast. * WHERE...Conestoga River at Lancaster. * WHEN...From this morning to late this afternoon. * 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 12:15 AM EDT Tuesday the stage was 6.7 feet and rising rapidly. - Forecast...The river will rise above flood stage to around 12 feet this morning. It will then fall below flood stage late this morning to around 10 feet this evening. Additional rainfall is expected later today and this evening. That will push the river back up to around 11 feet just after midnight tonight. It will then fall again on Wednesday and remain below flood stage. - Flood stage is 11.0 feet. - Flood History...No available flood history. - http://www.weather.gov/safety/flood
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. 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. Even 6 inches of fast-moving flood water can knock you off your feet and a depth of 2 feet will float your car. Never try to walk, swim, or drive through such swift water. If you come upon flood waters, stop, turn around and go another way. Additional information is available at www.weather.gov. The next statement will be issued later this morning.
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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
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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