1. Meteorological history

2. Preparations and impact

3. See also

4. References

5. External links

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 {{convert|12|in|mm|abbr=on}} of rain around Tampa, Florida, and the National Hurricane Center reported upwards of {{convert|20|in|mm|abbr=on}} nearby. Around Lake Okeechobee, precipitation totals of {{convert|7|in|mm|abbr=on}} 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, ${{Formatprice|{{Inflation|US|10000000|1974|r=0}}}} in 2009 USD).

Meteorological history

A tropical depression was situated over the southwestern Gulf of Mexico on June 22, 1974. By June 24, the depression began to weaken as it moved near the Mexican coastline, causing convective activity to move away from the center of circulation. Later that day, a new area of low pressure developed underneath the convection in the central Gulf of Mexico.^[1] It continued to mature, and around 1800 UTC, the system had become sufficiently organized to be classified as a subtropical depression.^[2] Although subtropical, the storm was operationally considered to be non-tropical,^[3] but was reassessed in a post-season analysis of the system.^[1] Upon becoming subtropical, the storm tracked rapidly towards the northeast at {{convert|24|mph|km/h|abbr=on}}. Early on June 25, the depression intensified into a subtropical storm as it neared the Florida coastline.^[2]

Preparations and impact

Following the formation of the system, the National Hurricane Center issued small craft advisories and gale warnings for most of the Florida coastline.^[3] Although it was relatively weak, the system brought torrential rainfall to parts of central Florida,^[3] with amounts of {{convert|11.38|in|mm|abbr=on}} in St. Petersburg.^[4] The National Hurricane Center reported that up to {{convert|20|in|mm|abbr=on}} fell near Tampa.^[1] In a 24-hour span, {{convert|9.54|in|mm|abbr=on}} of rain fell in Inverness.^[3] Rainfall amounts exceeding {{convert|7|in|mm|abbr=on}} covered a large area north of Tampa and totals between {{convert|5|and|7|in|mm|abbr=on}} were common west of Lake Okeechobee.^[4] Two runways at the St. Petersburg-Clearwater International Airport were submerged in flood waters during the storm.^[5]

Offshore, waves up to {{convert|4|ft|m|abbr=on}} affected coastal areas. Several vessels became stranded in the storm, resulted in many Coast Guard rescues, many by towing the ships back to shore.^[3] A tornado was reported near Fort Myers.^[6] Additionally, two waterspouts touched down near Sarasota; however, both struck unpopulated areas and left no damage.^[3] One of the two waterspouts was later confirmed as an F0 tornado with a track length of roughly {{convert|1|mi|km|abbr=on}}.^[7] Beach erosion was common along many beaches in southeastern states.^[23] The most significant erosion took place between Cedar Key and Naples where coastal flooding was reported.^[8] After moving through Florida, the subtropical storm brought gusty winds and light to moderate rainfall to Georgia, South Carolina and North Carolina.^[9] Throughout Florida, three people were killed by the storm from drowning and floods left roughly $10 million (1974 USD, ${{Formatprice|{{Inflation|US|10000000|1974|r=0}}}} in 2009 USD) in damage.^[1]

See also

• 1974 Atlantic hurricane season
• Timeline of the 1974 Atlantic hurricane season
• List of Florida hurricanes (1950–1974)

References

External links

• National Hurricane Center
• Monthly Weather Review for 1974

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