Tropical Climatology
June
July
August
September
October
November
Tropical cyclones are primarily a feature of tropical and subtropical waters. In the North Atlantic, they occur during the summer and fall months, known as the hurricane season. Depending on the time of year, tropical systems originate in different parts of the North Atlantic. Hurricanes can strike anywhere along the U.S. eastern seaboard, the Gulf of Mexico, the Hawaiian Islands and, rarely, the southern California coast. Other regions that are susceptible to tropical systems include the Pacific, Caribbean, and Gulf of Mexico coast of Mexico. The Bay of Campeche is often the site of early season formation (June and July). The entire Caribbean is at risk throughout the six month season.


During June, tropical cyclones can form in the Gulf of Mexico, the western Caribbean, and off the SE Coast of the United States.








During July, tropical cyclones can form in the Gulf of Mexico, off the SE Coast, and directly E of the Lesser Antilles. Not many cyclones form in the Caribbean.








During August, the season really picks up and cyclones can form off the coast of Africa to the Lesser Antilles, off the Eastern Seaboard, in the Gulf of Mexico, and a few scattered about in the Caribbean.








During the most active month...September, tropical cyclones can form everywhere south of 40N. September 10th marks the peak of the hurricane season.








During October, the Atlantic begins to quiet down. Cyclones can form in the Gulf of Mexico, the NW Caribbean, east of the Lesser Antilles, and scattered about south of 35N.








During November, very few tropical cyclones form. They can form in the southern Gulf of Mexico, the NW Caribbean, and E and NE of Peurto Rico.


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PC Weather Products.
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