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Thunderstorms will erupt in a zone of warm and humid air and along an approaching cold front from parts of the central Appalachians to the mid-Atlantic region into Thursday evening.
No storm has ever made landfall in the state, though many storms, notably Hurricane Irene and Hurricane Ida, have passed through the state as an extratropical cyclone. A notable one of these storms was Hurricane Agnes in 1972, with 50 people dying due to the storm in Pennsylvania. [1] The strongest winds in the state were from Hurricane Sandy.
The threat of severe thunderstorms will shift east into Thursday evening to target portions of the Midwest and Ohio Valley, one day after racing through the southern Plains and Mississippi Valley.
Thunderstorms in the East will contain mainly gusty winds and hail, although the strongest storms could spawn an isolated tornado. Areas that could experience severe weather include, Pittsburgh ...
Tropical cyclones normally threaten the states during the summer and fall, with their main impact being rainfall. [3] Although Hurricane Agnes was barely a hurricane at landfall in Florida, its major impact was over the Mid-Atlantic region, where Agnes combined with a non-tropical low to produce widespread rains of 6 inches (150 mm) to 12 inches (300 mm) with local amounts up to 19 inches (480 ...
PDS severe thunderstorm watches are issued when there is a higher than normal risk of severe thunderstorm winds capable of major structural damage (in addition to large hail and perhaps a few isolated tornadoes), usually due to a strong and persistent derecho. These watches are very rare (accounting an average of only two each year), as the ...
After severe thunderstorms walloped southern Minnesota with large hail Thursday, the threat for severe thunderstorms will shift eastward and cover a more widespread area through Friday night ...
By 10:34 a.m. EDT, the squall line was moving into southeastern Pennsylvania, where the warm, humid temperatures would further destabilize the system. [5] While there were few damaging wind gusts of 60 mph (97 km/h) or more while the storm moved across western and central Pennsylvania in the morning, the storm intensified by noon.