Tropical Storm Gabrielle is expected to strengthen and become a hurricane by Sunday afternoon, Sept. 21, according to the latest advisory from the National Hurricane Center.

Gabrielle is now forecast to become a Category 2 storm, with maximum sustained winds of 105 mph.

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Forecasters continue to predict Gabrielle will stay away from Florida and the United States.

Gabrielle is the seventh named storm of the Atlantic hurricane season. Once maximum sustained winds reach 74 mph, it will be classified as a hurricane.

Here's what you should know.

Spaghetti models for Tropical Storm Gabrielle. Where will it go?

Special note about spaghetti models:

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