September Hurricane Climatology
UPDATED August 27, 2014
By WeatherBug Meteorologists
The busiest time of the Atlantic hurricane season is just around the corner. September is prime hurricane time across the Atlantic with the climatological peak of the season occurring on September 10. On average, four storms develop during the month, which is more than any other month of the season, which runs until November 30.
By September 1, an "average" season would have already seen four named storms. Two of these would have been hurricanes, with one a major hurricane, Category 3 or higher (winds more than 111 mph). Thus far in 2014, three named storms have formed and they have all become hurricanes. None of these storms have become major hurricanes.
Development of tropical weather systems is not that much different from what`s seen during August. Tropical storms and hurricanes can occur pretty much anywhere over the open waters of the Gulf of Mexico, Caribbean Sea, and the Atlantic Ocean as far east as the Cape Verde Islands.
Clockwise flow of air around a large area of high pressure dominating the north-central Atlantic helps to carry tropical waves westward across the warm ocean waters. The westward extension of the north-central Atlantic high pressure system helps to determine whether storms will track through the Caribbean and into the Gulf, or make the turn up the U.S. East Coast or Bermuda.
Last September, four named storms formed, including the season`s only two hurricanes. Hurricane Ingrid formed on the 12th in the Gulf of Mexico, slowly strengthening as it moved around the Bay of Campeche between the Yucatan Peninsula and mainland Mexico. It eventually made landfall on September 16, and combined with Pacific Hurricane Manuel, killed 192 people. Tropical Storm Karen formed on September 27 near the Yucatan Peninsula and made its way toward the central U.S. Gulf Coast. It dissipated prior to making landfall.
The 2012 season was quite active with 19 named storms and 10 hurricanes. Of these storms, two formed in September. Hurricane Michael kicked off the month, staying across the east-central Atlantic Ocean. It was the fifth major hurricane in the satellite era to develop from a non-tropical origin. Hurricane Nadine followed, making three loops in the eastern Atlantic. It produced a wind gust to 87 mph at the Wind Power Plant on Santa Maria Island. Otherwise, it was no threat to the U.S.
Other notable hurricanes that have moved up and along the East Coast in September over the past several years include:
- Hurricane Gloria - 1985
- Hurricane Hugo - 1989
- Hurricane Bob - 1991
- Hurricane Fran - 1996
- Hurricanes Dennis and Floyd - 1999
- Hurricane Isabel - 2003
Be sure to check with WeatherBug often for the latest information on the 2014 Hurricane Season. Be sure to keep WeatherBug active to receive the latest weather in your neighborhood and get the latest updates anywhere on Twitter
What do you think of this story?
for comments or suggestions.