Weather Alert in Pennsylvania
Severe Thunderstorm Warning issued July 8 at 3:17PM EDT until July 8 at 4:00PM EDT by NWS State College PA
AREAS AFFECTED: Cumberland, PA; Dauphin, PA; York, PA
DESCRIPTION: SVRCTP The National Weather Service in State College PA has issued a * Severe Thunderstorm Warning for... Northeastern Cumberland County in south central Pennsylvania... Southern Dauphin County in south central Pennsylvania... Northwestern York County in south central Pennsylvania... * Until 400 PM EDT. * At 316 PM EDT, a severe thunderstorm was located over Shiremanstown, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Harrisburg, Lower Allen, Hershey, Colonial Park, Progress, Mechanicsburg, Middletown, Camp Hill, Palmyra, New Cumberland, Linglestown, and Enola. This includes the following Interstates... The Pennsylvania Turnpike from mile markers 234 to 256. Interstate 81 from mile markers 58 to 74. Interstate 83 from mile markers 32 to 50. Interstate 283 from mile markers 0 to 2.
INSTRUCTION: Stay inside a well built structure and keep away from windows. Very heavy rainfall is occurring with this severe thunderstorm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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