1974 Atlantic hurricane season

In August, poor weather conditions produced by Tropical Storm Alma caused a plane crash in Venezuela, which killed 49 people.

[3] 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.

However, by the following day, convection associated with the depression began weakening after an upper low pressure trough intensified over the eastern United States.

The remnants of the depression brought mostly light rainfall to East Coast states, with a peak total of 7.2 in (180 mm) in Avon Park, Florida.

Accelerating northeastward, the subtropical storm strengthened slightly further before making landfall near Clearwater, Florida, just after 06:00 UTC with winds of 50 mph (85 km/h).

After exiting Florida, the cyclone quickly began extratropical later that day, with the remnants dissipating offshore North Carolina on June 27.

Overall, approximately $24.8 million in damage occurred in Florida, with roughly half of that total incurred to beaches, bridges, drainage systems, roads, sewers, and utilities.

Around 12:00 UTC on August 14, the system peaked with maximum sustained winds of 60 mph (95 km/h) and a minimum barometric pressure of 992 mbar (29.3 inHg),[3] based on ship observations.

[6] Later that day, the cyclone curved east-northeastward and accelerated,[3] while its circulation became increasingly ill-defined, resembling that of a front, near Sable Island at about 00:00 UTC on August 15.

Steered rapidly west by an abnormally strong subtropical ridge, the depression intensified into Tropical Storm Alma by noon UTC the next day.

Early on August 14, Alma made landfall in Trinidad as a minimal tropical storm, becoming the southernmost-landfalling system on the island in 41 years.

[13] Alma left heavy damage in Trinidad, amounting to approximately $5 million,[14] making it the most destructive cyclone of the 20th century on the island at that time.

[16] Alma's heavy rainfall was responsible for a plane crash on Isla Margarita off the Venezuelan coast, killing the 49 people on board.

[18] The National Hurricane Center first began monitoring an area of shower and thunderstorm activity northeast of the Leeward Islands on August 20.

The disturbance tracked northwest, and both ships observations and satellite imagery indicated the formation of a tropical depression by 12:00 UTC on August 26; at the time, it was centered about 440 mi (710 km) south-southwest of Bermuda.

[21] Early on August 30, the system intensified into a Category 3,[3] and by 12:00 UTC, the storm attained its peak intensity with maximum sustained winds of 115 mph (185 km/h) and a minimum barometric pressure 977 mbar (28.9 inHg), based on observations by a reconnaissance aircraft.

[3] Carmen emerged into the Bay of Campeche late on September 3 and almost immediately executed a turn toward the north in response to falling pressures over the Southern United States.

[3][6] The cyclone steadily re-intensified over the Gulf of Mexico,[3] and a reconnaissance aircraft into the storm around 00:00 UTC on September 8 found that maximum winds had again increased to 150 mph (240 km/h).

As Carmen approaching the coastline of Louisiana, radar indicated the presence of drier air entering the eastern semicircle of the circulation,[6] and the cyclone moved ashore south of Morgan City with winds of 120 mph (195 km/h).

It turned northwest and then west-northwest after landfall and was last monitored as a tropical depression southeast of Waco, Texas, at 06:00 UTC on September 10.

The disturbance drifted west-northwest while steadily organizing, and a ship report around 18:00 UTC on September 2 indicated the formation of a tropical depression about 395 mi (635 km) south-southwest of Bermuda.

The storm recurved northeast ahead of an approaching trough and transitioned into an extratropical cyclone by 12:00 UTC on September 5 offshore the coastline of Nova Scotia.

The newly-formed cyclone moved northwest for several days, maintaining its status as a tropical depression despite the absence of a closed low-level circulation in several reconnaissance missions.

Steered northeast by an approaching trough, Elaine interacted with a cold front and transitioned into an extratropical cyclone by 00:00 UTC on September 14 over the northern Atlantic.

Maintaining hurricane intensity, Fifi brushed the northern coast of Honduras before making landfall in Belize with winds of 105 mph (165 km/h) the following day.

[28] The storm traveled in an arcuate path offshore Mexico and intensified into a Category 2 hurricane before making landfall in Sinaloa on September 24 and then quickly dissipating.

[30] While moving westward along the north coast of Honduras, Fifi lashed the country with strong winds and torrential, unrelenting rainfall.

The system moved west-northwest and steadily coalesced, organizing into a tropical depression by 12:00 UTC on September 27 about 985 mi (1,585 km) east-southeast of Barbados.

Peaking with sustained winds of 50 mph (85 km/h), the system veered northward and then northeastward,[3] but nonetheless caused heavy rainfall and coastal flooding on land in Florida.

The storm and a stationary high pressure system over the Eastern United States resulted in strong winds and rough seas along the coast of Florida for several days, especially on October 6.

Satellite imagery of Hurricane Carmen approaching the Gulf Coast of the United States