Weather Alert in Pennsylvania
Severe Thunderstorm Warning issued September 4 at 7:39PM EDT until September 4 at 8:30PM EDT by NWS State College PA
AREAS AFFECTED: Columbia, PA; Montour, PA; Northumberland, PA
DESCRIPTION: SVRCTP The National Weather Service in State College PA has issued a * Severe Thunderstorm Warning for... Southern Columbia County in central Pennsylvania... Southeastern Montour County in central Pennsylvania... East central Northumberland County in central Pennsylvania... * Until 830 PM EDT. * At 738 PM EDT, a severe thunderstorm was located over Elysburg, moving northeast at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will be near... Knoebels Grove, Elysburg, and Catawissa around 740 PM EDT. Bloomsburg, Mainville, and Rupert around 750 PM EDT. Berwick, Almedia, and Mifflinville around 800 PM EDT. Other locations impacted by this severe thunderstorm include Edgewood, Briar Creek, Lime Ridge, Espy, and Marion Heights. For those driving on Interstate 80, this includes areas between the Buckhorn and Nescopek exits, specifically from mile markers 232 to 247. This includes the following highways... Route 11 from Danville to Berwick. State Road 61 from Stonington to Kulpmont.
INSTRUCTION: Stay inside a well built structure and keep away from windows.
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Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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