Tropical Storm Allison Tropical storm (SSHWS/NWS) Tropical Storm Allison near peak intensity on June 5 Formed June 4, 2001 Dissipated June 20, 2001 (Extratropical after June 18) Highest winds 1-minute sustained: 60 mph (95 km/h) Lowest pressure 1000 mbar (hPa); 29.53 inHg Fatalities 41 direct, 14 indirect Damage $8.5 billion (2001 USD) Areas affected Texas, Louisiana, Mississippi, Alabama, Georgia, Florida, South Carolina, North Carolina, Virginia, District of Columbia, Maryland, Delaware, Pennsylvania, New York, New Jersey, Rhode Island, Massachusetts Part of the 2001 Atlantic hurricane season