Tropical development is typically on the decline in October, but history has shown that there can still be potent hurricanes this time of year.
One of the worst October hurricanes was Mitch in 1998, which ramped up to a strong Category 5 while in the western Caribbean.
The storm spent several days wandering across Central America and dumped historic amounts of rain (as much as 75 inches) in Honduras, Guatemala and Nicaragua. The flooding was worse than catastrophic; over 19,000 lives were lost, making it the second deadliest Atlantic hurricane on record.
The only Atlantic hurricane to take more lives was the Great Hurricane of 1780, which killed well over 25,000 people from the Windward Islands to Puerto Rico and the Dominican Republic.
Hurricane Wilma in 2005 also reached full fury over the western Caribbean with sustained winds to 185 miles per hour. The storm's central pressure of 26.05 inches is the lowest ever recorded for any Atlantic hurricane.
Wilma's forward motion slowed considerably as it approached the northeastern tip of the Yucatan. Later, Wilma made landfall in South Florida as a Category 3 hurricane and caused major damage.
Then of course there was Hurricane Hazel in October 1954, which roared northward from the Caribbean, across the Bahamas, then right up the Atlantic states.
Hazel produced winds up to 100 miles per hour in Delaware, Maryland, New York and Pennsylvania, and hurricane-force gusts were reported as far north as Ontario. Hazel claimed over 1,000 lives, mostly in Haiti.
Tropical development readily occurs during the first part of October, but the frequency of these storm decreases rapidly during the second half of the month.
In September, tropical storms are liable to form anywhere in the tropical Atlantic. In October, however, storms tend to develop closer to the United States in the Gulf of Mexico, the Caribbean, and to the north of Puerto Rico, the Dominican Republic and Haiti.
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The midwestern United States will be in the crosshairs of potent thunderstorms into Saturday night.
Much of the eastern United States will continue to swelter with above-average temperatures into the end of the month.
Tropical Storm Darby, located over the Central Pacific, is expected to bring locally heavy rain and high surf to the islands this weekend.
Those looking for a break from the heat across the central United States will be in luck as a slow cooldown is in store starting this weekend.
The more than 100,000 people expected to attend the annual Glorious Goodwood festival next week will want to keep a brolly handy.
While a vast amount of dry air has dominated and will continue to impact the Atlantic basin over the next few weeks, tropical activity could spark near the west coast of Africa.
Columbus, OH (1979)
This is the first year in 101 years of record keeping at Columbus in which the temperature has not reached 90 degrees by July 23rd.
Hurricane Delores, west of Baja California, causes high surf along the Southern California coast.
Minneapolis, MN (1987)
10 inches of rain fell in 6.5 hours.