The feverish 2017 hurricane season doesn’t seem to be letting up: on Monday, Tropical Storm Ophelia formed in the central Atlantic and is expected to become a hurricane this week.
While the storm poses no threat to land, it could become the 10th consecutive storm to grow to hurricane strength — a streak of intense systems that will tie a record last set in the late 1800s. It comes in a season that has already produced five major hurricanes, including three ferocious Category 5 storms, and 15 named storms.
The amount of accumulated cyclone energy — a measure of the intensity and longevity of storms — is also 254 percent higher than average with seven weeks left in the season, said University of Miami Rosenstiel School of Marine and Atmospheric Science hurricane researcher Brian McNoldy.
“We had 15 named storms last year, but things got named that weren’t really things people would remember,” he said. “There’s some heavy hitters this season.”
Ophelia, located about 845 miles west-southwest of the Azores at 5 p.m., formed Monday morning from a tropical wave rolling off Africa. National Hurricane Center forecasters said Ophelia will likely become a hurricane in three days as it swirls in the Atlantic far from the U.S. coast. With weak steering currents, the storm could linger in the area until next week, McNoldy said.
Since Harvey made landfall on the Texas coast on Aug. 25 — the first major hurricane to strike the U.S. coast since Wilma in 2005 — the amount of hurricane energy has climbed steadily. The increase coincided with the historical peak in the season, between mid August and mid September, but shot up abruptly with the appearance of Irma, which pumped out 185 mph winds for nearly 40 hours straight. Irma also became the most powerful hurricane on record in the Atlantic, outside the Caribbean or Gulf of Mexico.
What’s making this season so busy is a combination of timing and luck, McNoldy said.
Sea temperatures have been warm and hurricane smothering wind shear weak, he said. This year’s storms have also largely avoided mountainous islands in the Caribbean, including Puerto Rico, Hispaniola and Cuba, that can shred storms.
“It’s just a matter of having one of those waves at the right time at the right place,” he said.
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Source: Miami Herald