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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 ...
A Federal Emergency Management Agency (FEMA) worker with a flood victim from Floyd in Philadelphia Floyd's rain affecting Pennsylvania, and surrounding states. September 16, 1999 – Hurricane Floyd, which was a tropical storm by the time it reached Pennsylvania, caused 13 deaths and 10 inches (250 mm) of rain in the eastern part of the ...
Average annual precipitation in Pennsylvania has increased 5 to 10 percent in the last century, and precipitation from extremely heavy storms has increased 70 percent in the Northeast since 1958. Wildfire smoke pollution, Delaware River, 2023. During the next century, annual precipitation and the frequency of heavy downpours are likely to keep ...
The Johnstown Flood was the worst flood to hit the U.S. in the 19th century, and to date, the worst to strike Pennsylvania. [ 27 ] 1,600 homes were destroyed, $17 million in property damage levied (approx. $550 million in 2022), and 4 square miles (10 km 2 ) of downtown Johnstown were completely destroyed.
Climate change in Pennsylvania; Climate of Allentown, Pennsylvania This page was last edited on 29 December 2013, at 13:07 (UTC). Text ...
If it develops, the climate pattern will influence summer and fall weather in the Keystone State. El Niño is likely on its way. Here’s what it could mean for Pennsylvania’s weather
A preview of the worst-case scenario following this weekend’s rainfall could be seen in the Palisades two weeks ago, when an oceanview home that survived the wildfire was literally split in half ...
The Johnstown flood of 1977 was a major flood which began on the night of July 19, 1977, when heavy rainfall caused widespread flash flooding in Cambria County, Pennsylvania, United States, including the city of Johnstown and the Conemaugh Valley. On July 19, a deluge of rain hit the Johnstown area during the night.