Weather Alert in Pennsylvania
Severe Thunderstorm Warning issued July 1 at 12:38AM EDT until July 1 at 1:30AM EDT by NWS Mount Holly NJ
AREAS AFFECTED: Chester, PA; Delaware, PA
DESCRIPTION: SVRPHI The National Weather Service in Mount Holly NJ has issued a * Severe Thunderstorm Warning for... Chester County in southeastern Pennsylvania... Southwestern Delaware County in southeastern Pennsylvania... * Until 130 AM EDT. * At 1237 AM EDT, a severe thunderstorm was located near Homeville, or 14 miles south of New Holland, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. * Locations impacted include... West Chester, Phoenixville, Coatesville, Westtown, Downingtown, Kennett Square, Oxford, Parkesburg, West Grove, Homeville, Glen Roy, Cochranville, Cheyney, Elam, Marshallton, Mount Vernon, Lionville-Marchwood, Chester Springs, Lionville, and Concordville.
INSTRUCTION: For your protection move to an interior room on the lowest floor of a building.
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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
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
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