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Gale of 1878
Philadelphia's most destructive windstorm. 700 buildings were destroyed. Gusts peaked at morethan 100 mph. -
The Great Blizzard of 1888
This blizzard caused between 20-60 inches of snowfall and left snowdrifts 50 feet high in some areas. -
Johnstown Flood
After days of heavy rainfall, the South Fork Dam gave out and released 20 million tons of water into Johnstown. -
Hurricane Agnes
This hurricane caused Pennsylvania more damage than any other state. It brought torrential downpour and flooding from the Susquehanna and Lackawanna Rivers. -
Tornado Outbreak
A string of tornadoes touched down in Western PA. The biggest was a half-mile wide. 65 people lost their lives. -
1998 Tornado Outbreak
An unusual event for this area, numerous tornadoes touched down in New York and Pennsylvania with some reaching F2 to F3 intensity. There was also a High Risk for Severe Thunderstorms, which had never been issued for the Northeastern United States and never has been since. -
Pymatuning Earthquake
The greatest earthquake in Pennsylvania's history with a magnitude of 5.2. -
Mid-Atlantic Flooding
Over 200,000 residents had to be evacuated due to floodwaters. Damage totalled over 100 million dollars. -
Hurricane Irene
This storm caused flooding, power outages, and a few deaths in Pennsylvania. Irene is ranked as the seventh costliest hurricane in United States history. -
Hurricane Sandy
Many public transportations, highways, and bridges were closed due to Hurricane Sandy. More than 1.2 million were without power and there were 14 deaths.
