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1967 Atlantic hurricane season

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Hurricane Beulah, the strongest storm of the season, and only major hurricane (Category 3 or above on the Saffir–Simpson scale), was also the most damaging. It caused 59 deaths and $235 million in damage (1967 USD) along its two-week-long path. Beulah formed on September 5 and soon after crossed southern Martinique into the Caribbean Sea. On the island, it dropped 18.7 in (475 mm) of rainfall in Les Anses-d'Arlet, causing severe flooding. Widespread evacuations occurred along the southern coast of the Dominican Republic due to fears of a repeat of Hurricane Inez from the previous year. After brushing the south coast of Hispaniola, the hurricane weakened and re-intensified, striking the Yucatán Peninsula and later near the United States/Mexico border. There, it caused severe river flooding, killing 34 people in the two countries.

Hurricanes Arlene and Chloe, as well as several tropical depressions, originated from tropical waves that left the coast of Africa. Chloe lasted for nearly 17 days, eventually dissipating over France after wrecking a ship offshore northern Spain, killing 14 people. Hurricane Doria co-existed with Beulah and Chloe, taking an unusual trajectory over the eastern United States; it killed three people in a boating accident offshore New Jersey. In late September, Tropical Storm Edith was a minimal storm that moved through the Lesser Antilles without serious impact. Hurricane Fern killed three people when it struck Mexico north of Tampico.

Season summary

The 1967 Atlantic hurricane season officially began on June 1, and ran through November 30. These dates historically describe the period in each year when most tropical cyclones form in the Atlantic Ocean. Tropical cyclogenesis, the process in which a tropical cyclone develops, resulted mainly from tropical waves, the Intertropical Convergence Zone (ITCZ), and decaying frontal systems. There were 30 tropical waves that exited the west coast of Africa at Dakar, Senegal; another 20 tropical disturbances originated offshore the Mid-Atlantic states, and 7 disturbances derived from cold-core lows. A total of 18 tropical depressions (tropical cyclones with maximum sustained winds of 38 mph (62 km/h) or less) formed during the season, 13 of which developed into named storms. Of those, six strengthened into hurricanes, while 1 system reached major hurricane intensity. This was the first season that non-developing tropical depressions were included into HURDAT, the National Hurricane Center—managed tropical cyclone database.

The season got off to a slow start, with the first operationally named storm, Arlene, not forming until August 28. The latency was caused by a stronger than normal ridge across the Atlantic Ocean, which suppressed convective activity across the basin and prevented the formation of strong low pressure areas. The season came to life in September, as seven tropical storms formed, including hurricanes Beulah, Chloe, and Doria. The season's overall activity was reflected with an above normal Accumulated Cyclone Energy (ACE) index of 121.7 units. ACE is, broadly speaking, a measure of the power of the hurricane multiplied by the length of time it existed, so storms that last a long time, as well as particularly strong hurricanes, such as Beulah, have high ACEs. It is only calculated for full advisories on tropical systems at or exceeding 39 mph (63 km/h), which is the threshold for tropical storm status.

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