Tropical Storm in Pennsylvania
Every tropical storm event the National Weather Service has filed in Pennsylvania, year by year, with the most significant episodes. A tropical cyclone with sustained winds of 34 to 63 knots (39 to 73 mph).
The most significant on the map
The most significant tropical storm episodes in Pennsylvania.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 55
- Deaths
- 1
- Injuries
- 0
- Damage
- $3.7 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Tropical Storm and Storm Surge in Pennsylvania, August 27 to 30, 2011Irene produced heavy flooding rain, tropical storm force wind gusts with hundreds of thousands of outages, moderate tidal flooding along the Delaware River and one flooding related death in Eastern Pennsylvania over the weekend of August 27th and 28th.
- Tornadoes and Tropical Storm in Pennsylvania, August 4, 2020Tropical Storm Isaias brought high winds, heavy rain, several tornadoes, and coastal flooding to the mid-Atlantic region, becoming the most impactful tropical cyclone to impact most of the region since Sandy in 2012.
- Tropical Storm and Storm Surge in Pennsylvania, September 6, 2008Tropical Storm Hanna brought heavy rain throughout eastern Pennsylvania and strong winds in southeastern Pennsylvania as well as some minor tidal flooding along the lower Delaware River on the 6th.
- Tropical Storm in Pennsylvania, September 18 to 19, 2003Hurricane Isabel came ashore around midday on September 18th between Cape Hatteras and Cape Lookout, North Carolina.
More
Tropical Storm everywhereEvery kind of event in Pennsylvania
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.