What does the Sahara Desert in Africa have to do with hurricanes in the Atlantic, Gulf of Mexico, and Eastern Pacific Ocean?
Hurricane Harvey: Boat rescue traffic on the flooded Jimmy Johnson Road in Port Arthur, Texas, on August 30.
According the
Wikipedia, these are the costliest Atlantic hurricanes.
Costliest Atlantic hurricanes
Name |
Nominal damage (Billions USD) |
Season |
classification at peak intensity |
Areas affected |
Katrina |
$125.0 |
2005 |
Category 5 hurricane |
- Louisiana
- Mississippi
- The Bahamas
- United States Gulf Coast
- South Florida
- Northeast
- Eastern Canada
|
Harvey |
$125.0 |
2017 |
Category 4 hurricane |
- Texas
- Louisiana
- South America
- Central America
- The Caribbean
- Yucatan Peninsula
|
Maria |
$91.6 |
2017 |
Category 5 hurricane |
- Puerto Rico
- Lesser Antilles
- Greater Antilles
- Caribbean Sea
- Eastern United States
|
Sandy |
$68.7 |
2012 |
Category 3 hurricane |
- The Caribbean
- United States East Coast
- Eastern Canada
|
Irma |
$64.8 |
2017 |
Category 5 hurricane |
- Lesser Antilles
- Greater Antilles
- Caribbean Sea
- Eastern United States
|
Credit: Courtesy of Kenny Chesney
Description: The wreckage of Hurricanes Irma and Maria left a tangle of colorful debris but very little remained of what people called their homes.
Sent in by: Ebie McFarland ebie@ebmediapr.com
The thing that these hurricanes have in common, in addition to their massive destruction, is that they began on the west coast of Africa.
You might think this sounds a little crazy because hurricanes are very wet and deserts are very dry, but if it weren’t for this huge, hot, dry region in North Africa, we would see far fewer hurricanes in the United States. The Sahara Desert is massive, covering 10 percent of the continent of Africa. It would be the largest desert on Earth, but based strictly on rainfall amounts, the continent of Antarctica qualifies as a desert and is even larger. Still, rainfall in the Sahara is very infrequent; some areas may not get rain for years and the average total rainfall is less than three inches per year. While not the largest or driest of the deserts, the Sahara has a major influence on weather across the Western Hemisphere.
All North Atlantic and Eastern North Pacific hurricanes
(at least Category 1 on the Saffir-Simpson Hurricane Scale). Note how many originate at the edge of Africa’s West Coast, where the desert meets the green forests to the south. (NOAA)
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