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1974 Atlantic hurricane season

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The first system, an unnamed tropical storm, developed over the Bay of Campeche on June 22 and dissipated by June 26. The most intense storm of the season was Hurricane Carmen, which struck the Yucatán Peninsula at Category 4 intensity and Louisiana at Category 3 intensity. Carmen caused about $162 million in damage, mostly in Louisiana, and 12 deaths. Also highly notable was Hurricane Fifi, the deadliest Atlantic hurricane since the 1900 Galveston hurricane, which dropped torrential rain in Central America, especially Honduras. The hurricane left more than $1.8 billion in damage and at least 8,210 fatalities. In August, poor weather conditions produced by Tropical Storm Alma caused a plane crash in Venezuela, which killed 49 people. Alma caused two additional deaths in Trinidad. Collectively, the tropical cyclones of this year resulted in at least 8,277 deaths and just under $2 billion in damage.


Season summary

The hurricane season officially began on June 1, with the first tropical cyclone developing on June 22. A total of 16 tropical and subtropical cyclones formed, with 13 of them intensifying into nameable storm systems. This was above the 1950–2000 average of 9.6 named storms. Four of these reached hurricane status, below the 1950–2000 average of 5.9. Furthermore, two storms reached major hurricane status; near the 1950–2000 average of 2.3. Collectively, the cyclones of this season caused at least 8,277 deaths and just under $2 billion in damage. The Atlantic hurricane season officially ended on November 30, with the final cyclone dissipating on November 12.

Similar to the previous two seasons, much of the tropics were dominated by extensive upper-level westerlies and colder than normal sea surface temperatures, producing unfavorable conditions, though to a lesser extent than in 1972 and 1973. Wind shear generated by the westerlies covered a smaller area, while sea surface temperatures in the tropics were generally above the threshold for tropical cyclogenesis. All named storms developed in regions with ocean temperatures exceeding 80 °F (27 °C).

Tropical cyclogenesis began in June, with an unnamed tropical storm developing over the Bay of Campeche on June 22. Two cyclones formed in July – an unnamed tropical storm followed by a tropical depression. August featured five systems, including Alma, Becky, Carmen, a subtropical storm, and a tropical depression. September tied August as the most active month, with Dolly, Elaine, Fifi, Gertrude, and a tropical depression forming. Subtropical Storm Four and an unnumbered subtropical storm developed in October. The unnumbered subtropical storm would be the season's final system, when it dissipated on October 20.

The season's activity was reflected with an accumulated cyclone energy (ACE) rating of 61. ACE is a metric used to express the energy used by a tropical cyclone during its lifetime. Therefore, a storm with a longer duration will have high values of ACE. It is only calculated at six-hour increments in which specific tropical and subtropical systems are either at or above sustained wind speeds of 39 mph (63 km/h), which is the threshold for tropical storm intensity.

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