Weather Alert in Pennsylvania
Flash Flood Warning issued July 8 at 3:39PM EDT until July 8 at 6:45PM EDT by NWS State College PA
AREAS AFFECTED: Cumberland, PA; Dauphin, PA; Lancaster, PA; Lebanon, PA; York, PA
DESCRIPTION: FFWCTP The National Weather Service in State College has issued a * Flash Flood Warning for... East Central Cumberland County in south central Pennsylvania... Southeastern Dauphin County in south central Pennsylvania... Northwestern Lancaster County in south central Pennsylvania... Lebanon County in south central Pennsylvania... North Central York County in south central Pennsylvania... * Until 645 PM EDT. * At 339 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen in some areas. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Harrisburg, Lebanon, Lower Allen, Hershey, Ephrata, Colonial Park, Elizabethtown, Progress, Lititz, Mechanicsburg, Middletown, Camp Hill, Palmyra, New Cumberland, Linglestown, Enola, Steelton, Manheim, Annville and Lemoyne.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
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Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
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