Farther out in the Atlantic, Hurricane Jose has nearly hit Category 5 strength, with tops winds of 155 miles per hour.
Jose had winds up to 70 miles per hour, and the hurricane center said it could become a hurricane later today. In those places, storms with sustained winds between 30 and 50 kilometers per hour, and gusts of up to 80 can occur.
CNN's Leyla Santiago, in the capital of San Juan, said there were already power outages as strong winds lashed the island and the center of the storm moved just off the northeast coast.
"The system will likely end up moving inland over the northern coast of southeastern Mexico sometime late this week or this weekend", AccuWeather Hurricane Expert Dan Kottlowski said.
Irma is forecast to hit the Leeward Islands and Puerto Rico later this week.
- It's too early to tell whether it will make landfall on the USA mainland.
That's what happened to Irma on August 30, as it picked up speed in the far Eastern Atlantic and intensified.
So it's been seven years since it last happened, when hurricanes Igor, Julia, and Karl appeared simultaneously in the Atlantic in 2010.
July 31, 2017 - Tropical Storm Emily forms near the west coast of Florida and makes landfall on Anna Maria Island.
Officials in Veracruz say Katia could cause landslides and flooding. Hurricane watches were issued on Thursday for the area.
It is termed as Category 5 hurricane and the most powerful of the three hurricanes that have battered the Atlantic region.
Jose could hit some of the same small islands in the northern Lesser Antilles decimated by Irma.
Projection cone for hurricane Irma.
Irma will still be a major hurricane by that time, but whether it retains Category 5 status is still uncertain.