Why some hurricanes linger while other storms die quickly

In this Sept. 10, 2017, photo, waves crash over a seawall at the mouth of the Miami River from Biscayne Bay, Fla., as Hurricane Irma passes by in Miami. Rising sea levels and fierce storms have failed to stop relentless population growth along U.S. coasts in recent years, a new Associated Press analysis shows. The latest punishing hurricanes scored bull’s-eyes on two of the country’s fastest growing regions: coastal Texas around Houston and resort areas of southwest Florida. (AP Photo/Wilfredo Lee)

WASHINGTON (AP) – This hurricane season is showing how wild and varied storms’ life cycles can be.

Most seem to be tracked for days while others appear to pop out of nowhere. And some just sit around.

Studies show about four out of five major hurricanes start off Africa. Forecasters for days watched Harvey, Irma, Jose, Lee and now Maria make steady marches west off Africa before they got named.

They need favorable winds, warm water and moist air to get stronger.

Some get strong immediately while others intensify over the Caribbean or the Gulf of Mexico. Some even don’t get their acts together until they cross over the Pacific.



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