Category 4 major hurricane (SSHWS/NWS) | |
Satellite image of Dora on September 5
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Formed | August 28, 1964 |
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Dissipated | September 14, 1964 |
Highest winds |
1-minute sustained: 130 mph (215 km/h) |
Lowest pressure | 942 mbar (hPa); 27.82 inHg |
Fatalities | 5 total |
Damage | $250 million (1964 USD) |
Areas affected | Leeward Islands, Bermuda, Florida, Alabama, Georgia, The Carolinas, Virginia, Maryland, Delaware, Northeastern United States, Atlantic Canada |
Part of the 1964 Atlantic hurricane season |
Hurricane Dora was first tropical cyclone on record to make landfall over the First Coast of Florida. The sixth tropical storm and second hurricane of the 1964 season, Dora developed from a tropical wave near the coast of Senegal on August 28. After a reconnaissance aircraft flight on September 1, the depression was upgraded to Tropical Storm Dora. It then curved northeastward and continued to strengthen. By early on September 3, Dora became a Category 1 hurricane. Six hours later, the storm reached Category 2 intensity. Intensification slowed somewhat, though Dora became a Category 3 on September 5. Deepening further, the storm peaked as a Category 4 with maximum sustained winds of 130 mph (215 km/h) early the following day. At 18:00 UTC on September 6, Dora weakened to a Category 3 hurricane, then a Category 2 hurricane while curving westward early the following day.
Later on September 7, Dora re-strengthened into a Category 3 hurricane. Approaching the east coast of Florida, Dora's motion became erratic, making a few cyclonic loops. Around 04:00 UTC on September 10, the hurricane made landfall near St. Augustine, Florida, with winds of 115 mph (185 km/h). Two hours later, Dora weakened to a Category 2 hurricane. However, deterioration then slowed, with the hurricane falling to tropical storm intensity over Jefferson County on September 11. Dora then briefly drifted over southwestern Georgia, until turned east-northeastward late the next day. Early on September 14, the storm re-emerged into the Atlantic Ocean near Cape Hatteras, North Carolina, and transitioned into an extratropical cyclone several hours later. The remnants of Dora moved rapidly northeastward and dissipated offshore Newfoundland early on September 16.
Along the coast, tides reached up to 10 ft (3.0 m) above mean sea level. Strong winds lashed North Florida, with sustained wind of 125 mph (205 km/h) observed in St. Augustine. In Jacksonville, approximately 156,000 customers were left without electricity, while about 19% of phones in Duval County were out of service. Much of the damage in the Jacksonville area occurred to older buildings and those located in coastal areas. Additionally, sections of the city experienced wind-induced river flooding in the vicinity of the St. Johns River. Heavy rainfall damaged many unharvested crops and inundated numerous of roads and bridges, isolated some communities for several days. Throughout Florida, 74 dwellings were flattened and 9,374 received damage, while 14 mobile homes were destroyed and 218 others suffered severe impact. About 50 farm buildings and 423 small businesses were severely damaged or demolished. Three deaths and at least $230 million in damage occurred. In Georgia, the storm damaged about 1,135 homes and obliterated five others. Additionally, 18 trailers suffered major impact, while 43 small businesses were destroyed or experienced severe damage. There was one death in the state and at least $9 million in damage. A few other states were affected by the storm, though impact there was much lesser. One death occurred in Virginia. Overall, Dora caused $280 million in damage and five deaths.