Tropical Storm in Delaware
Every tropical storm event the National Weather Service has filed in Delaware, 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 Delaware.
- 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
- 20
- Deaths
- 0
- Injuries
- 0
- Damage
- $18 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Tornado and Tropical Storm in Delaware, August 27 to 30, 2011Hurricane Irene produced heavy flooding rain, widespread tropical storm force wind gusts, a confirmed tornado near Lewes in Sussex County, moderate to severe coastal flooding and beach erosion and caused two flooding related deaths, forced evacuations near the coast over the…
- Tropical Storm and Storm Surge in Delaware, September 18 to 20, 2003Tropical Storm Isabel caused tidal flooding up Delaware Bay, heavy rain and strong power outage producing winds. Isabel made landfall as a hurricane near Drum Inlet, North Carolina around 100 p.m. EDT on the 18th and weakened as it tracked farther inland.
- Tornadoes and Tropical Storm in Delaware, 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 Delaware, September 6, 2008Tropical Storm Hanna brought heavy rain and strong winds in Delaware and some minor tidal flooding in Delaware Bay on the 6th. Rain moved into the region during the morning, fell heavy at times in the afternoon and ended during the early evening.
- Tropical Storm and Flash Flooding in Delaware, July 10, 2020Tropical Storm Fay moved northward along the coasts of Delaware and New Jersey on the afternoon and evening of July 10. The storm produced rainfall totals up to 4 to 7 inches in Delaware, with the highest totals occurring in the southeastern part of the state.
- Tropical Storm in Delaware, July 13, 1996A weakening Tropical Storm Bertha passed across the state on July 13th. Hurricane Bertha made landfall near Wilmington North Carolina close to 5 p.m. EDT on the 12th and moved northnortheast overnight. At 11 p.m. EDT it was 100 miles southwest of Norfolk, at 3 a.m.
More
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.