It's about 1,040 miles east of the Lesser Antilles, a collection of islands in the Caribbean Sea.
For now, Irma remains by far the greatest threat after becoming the biggest Atlantic hurricane in recorded history overnight. Katia is now in the Gulf of Mexico and is eventually expected to hit Mexico. It is now a hurricane and is packing winds of 75 miles per hour and is moving southeast at 3 miles per hour.
As of Wednesday evening, the National Hurricane Center is forecasting that the centerline of the Category 5 storm will travel over Miami, then up the east coast of Florida. The most updated forecast for the storm does not list any land hazards at this time, but said the Leeward Islands should monitor the storm's progress.
There is no concern about flooding at this point, Head said.
Below is a video of Irma's strength as the storm made landfall on St. Maarten earlier today.
CBS News' Tony Dokoupil reports from San Juan that hotels in Puerto Rico's capital had folded up their operations and stores were boarded up or completely stripped clean of supplies in anticipation of the storm's wrath.
Water and communication on the island have been cut off, Browne said.
"We have a lot of broken trees across the island", Meade said from Antigua, whose 80,000 people comprise most of the two-island nation's population. That string of islands was slammed by Irma Wednesday and the extent of the damage is not yet clear. One, Guadeloupe, has about 405,000 residents. 1 Hurricane Jose had maximum sustained wind of 90 miles per hour and may become a major hurricane Friday.
Hurricane Katia, which is still a Category 1 hurricane, is expected to strengthen Thursday night or early Friday, according to NOAA.
At 10 a.m. CDT (11 a.m. EDT/1500 UTC) the center of Hurricane Katia was located near 21.6 degrees north latitude and 94.6 degrees west longitude. And they are very different storms.