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1979 Atlantic hurricane season

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Through Mississippi and Cuba

The most intense tropical cyclone of the season was Hurricane David. It moved across the Lesser Antilles in late August, with the worst hit islands being Dominica and Martinique. The storm then strengthened further and struck Dominican Republic as a Category 5 hurricane. David was the strongest and deadliest tropical cyclone to make landfall in that country since 1930. In Dominican Republic alone, the system caused approximately 1,000 deaths and $1 billion in damage. Later, David brought wind damage, tornadoes, and flooding to portions of the East Coast of the United States. Overall, the storm resulted in 2,078 deaths and $1.54 billion in damage. Hurricane Frederic brought destruction to the Gulf Coast of the United States, especially in Alabama and Mississippi.

Tropical Storm Elena brought flooding to the Greater Houston area, with five deaths and about $10 million in damage. However, little impact was reported elsewhere. Hurricane Henri remained offshore in the Gulf of Mexico and disrupted efforts to stop the Ixtoc I oil spill. Henri also caused flooding in portions of Mexico. In mid and late-September, a tropical depression caused flooding in the Southern United States, especially Texas. Four deaths were reported, two in Texas and two in Kentucky. Toward the end of October, a brief hurricane force subtropical storm struck Newfoundland, but left little impact. Other than Tropical Depression One and the tropical depression that brought flooding to the Southern United States in mid and late-September, none of the other depressions caused significant effects of land. Collectively, the tropical cyclones of the season resulted in $4.07 billion in damage and at least 2,149 deaths.

Seasonal summary

The Atlantic hurricane season officially began on June 1, 1979. Although 26 tropical systems were observed, only 16 reached the level of tropical or subtropical depression, and nine of them reached tropical storm intensity, which is slightly below the 1950-2000 average of 9.6 named storms per season. Of the nine tropical storms, five of them strengthened into a hurricane, which is also slightly below average. Two of the five hurricanes became major hurricanes, which is Category 3 or greater on the Saffir–Simpson hurricane wind scale. Collectively, the cyclones of the 1979 Atlantic hurricane season caused at least 2,149 fatalities and $4.07 billion in damage. Despite their intensities, Tropical Depression One and an unnumbered one in September also caused deaths. Additionally, the former inflicted about $27 million in damage from severe flooding in Jamaica. The last storm of the season, an unnumbered tropical depression, dissipated on November 15, about 15 days before the official end of hurricane season on November 30.

Tropical cyclogenesis began in June, with three tropical depressions, one of which strengthened into Tropical Storm Ana. A total of four systems formed in the month of July, including Hurricane Bob and Tropical Storm Claudette. Activity briefly halted after Tropical Depression Six dissipated on August 6 and lasted until Hurricane David developed on August 25. There were four other tropical cyclones that month, including Hurricane Frederic and Tropical Storm Elena. In September, six systems developed, with the named storms of the month being hurricane Gloria and Henri. October was slightly less active, with four tropical cyclones, one of which was an unnamed subtropical storm. Two additional tropical depressions developed in November, the second of which dissipated on November 15.

The season's activity was reflected with an accumulated cyclone energy (ACE) rating of 93. 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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