&sq=&lang=&file=File:Subtropical_Storm_One_on_June_24,_1974_at_0800z.png) The subtropical storm on June 24 off the west coast of Florida | |
| Meteorological history | |
|---|---|
| Formed | June 22, 1974 |
| Extratropical | June 25, 1974 |
| Dissipated | June 27, 1974 |
| Subtropical storm | |
| 1-minute sustained (SSHWS/NWS) | |
| Highest winds | 65 mph (100 km/h) |
| Lowest pressure | 1000 mbar (hPa); 29.53 inHg |
| Overall effects | |
| Fatalities | 3 direct |
| Damage | $10 million (1974 USD) |
| Areas affected | Southeastern United States, especially Florida |
| IBTrACS | |
Part of the 1974 Atlantic hurricane season | |
Subtropical Storm One was a short-lived subtropical cyclone that brought copious amounts of rainfall to central Florida in late June 1974. The storm originated in an area of convection that detached from a tropical depression over the southwestern Gulf of Mexico on June 24. A new area of low pressure developed underneath the convection and the system began to intensify. Later that day, the storm had become sufficiently organized to be classified as a subtropical depression. Early on June 25, it made landfall near Clearwater, Florida with winds of 50 mph (85 km/h) and later attained its peak intensity over eastern Florida with winds of 65 mph (100 km/h). After reemerging into the Atlantic Ocean, the system began to weaken as it underwent an extratropical transition. The storm ultimately dissipated off the coast of North Carolina early on June 26.
Despite its relatively weak strength, the system produced nearly 12 in (300 mm) of rain around Tampa, Florida, and the National Hurricane Center reported upwards of 20 in (510 mm) nearby. Around Lake Okeechobee, precipitation totals of 7 in (180 mm) were common. The heavy rainfall led to moderate flooding across the state. One tornado was confirmed to have touched down in association with the cyclone. Three people drowned as a result of the storm and damage amounted to $10 million (1974 USD, $61.8 million in 2009 USD).