Hurricane Jose upgraded to Category 4 storm, takes aim at islands battered by Irma

Hurricane Irma and Jose

CAIBARIEN, Cuba — Hurricane Jose has now become an extremely dangerous Category 4 hurricane, threatening Caribbean islands already devastated by Hurricane Irma.

Jose now has top sustained winds of 150 mph (240 kph) and as it moves toward the northern leeward islands at a speedy 18 mph.

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A Tropical Storm Watch has been issued for St. Thomas and St. John.

The government of Antigua has issued a Tropical Storm Watch for the British Virgin Islands

The government of France has issued a Tropical Storm Warning for St. Martin and St. Barts.

The government of Sint Maarten has issued a Tropical Storm Warning as well.

This is the first time on record that the Atlantic has had two hurricanes with 150-plus mph winds at the same time, Colorado State University meteorologist Philip Klotzbach said.

In addition, Hurricane Katia in the Gulf of Mexico has maximum sustained winds of 100 mph and is expected to make landfall in Mexico early Saturday, the National Hurricane Center said.

Fluctuations in Hurricane Jose's intensity are possible for the next day or so, the National Hurricane Center said, and the storm is expected to gradually weaken after that.

Information from the Associated Press and CNN was used in this report.