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Tropical Storm Humberto is forecast to strengthen into a major hurricane over the weekend.

A second system, Invest 94L, is expected to become a tropical depression near the Bahamas.

Forecasters are monitoring a potential interaction between Humberto and Invest 94L, known as the Fujiwhara effect.

Tropical Storm Humberto is forecast to strengthen and become a hurricane in a day or so and a major hurricane over the weekend, the National Hurricane Center reported in its latest Sept. 25 update. Invest 94L , also in the Atlantic, is expected to become a tropical depression soon.

Hurricane Gabrielle has weakened and is moving east toward Europe as a post-tropical cyclone. Swells from Gabrielle are affecting the U.S East Coast, including Florida, with life-threaten

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