The Atlantic basin includes the northern Atlantic Ocean, Caribbean Sea and Gulf of America, as the Gulf of Mexico is now known in the U.S. per an order from President Trump. NOAA and the National Hurricane Center are now using Gulf of America on its maps and in its advisories.

Hurricane Erin exploded in strength to a Category 5 storm in the Caribbean on Saturday, rapidly powering up from a tropical storm in a single day, the National Hurricane Center said.

Most long-term models predict Erin will curl away from Florida. Those projections often are unreliable more than a week out, and the hurricane center warned that doubt remains in the forecast. In the four- and five- day range, track forecasts have an average error of about 150 to 215 miles, forecasters said.