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Hurricane Irma gathering strength in Atlantic Ocean

While the remnants of Tropical Storm Harvey bring rain to Western Pennsylvania this weekend, meteorologists are keeping a close eye on the next storm brewing in the Atlantic Ocean.

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Hurricane Irma formed while following a course that could bring it near the eastern Caribbean Sea as a Category 4 storm by early next week. Its maximum sustained winds had increased to near 115 mph.

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Irma was moving west-northwest near 12 mph and that general motion was forecast to continue through early Friday.

Forecasters said Irma likely would become a major hurricane by Thursday night and was expected to be an extremely dangerous hurricane for the next several days.

No coastal watches or warnings were in effect.