"Forecasters are now predicting a higher likelihood of an above-normal season, and they increased the predicted number of named storms and major hurricanes", the agency said.
Gerry Bell, a lead seasonal hurricane forecaster with NOAA, said in an August statement that "the chance of an El Nino forming, which tends to prevent storms from strengthening, has dropped significantly from May".
Katia is moving toward the west-southwest near 3 miles per hour (6 km/h) and this general motion is expected to continue until the system makes landfall within the hurricane warning area by early Saturday, Sept. 9.
Reuters/Ricardo RojasA member of the Emergency Operations Committee (COE) monitors the trajectory of Hurricane Irma in Santo Domingo, Dominican Republic September 5, 2017.
Forecast for Jose shows it will move to the northwest intensifying into a hurricane
Irma will likely make landfall in Florida or somewhere in the southeast United States by the end of the weekend after carving a path through the Caribbean this week.
Two days of satellite imagery from NASA's Terra and NOAA's GOES East satellites showed that Hurricane Katia was starting to crawl to the coast of southeastern Mexico.
Right now, three hurricanes are spinning in the Atlantic Ocean, an unusual event that hasn't happened since 2010.
Meanwhile, the peak winds of Hurricane Katia, centered over the southwest Gulf of Mexico, had reached 100 miles per hour. Hurricane Katia is moving southwest while intensifying, and is projected to make landfall on Friday night into Saturday in the state of Veracruz as a Category 2 or 3 storm.
Two people died in a mudslide in Mexico sparked by storm Katia, and thousands were left without power as the weather front dissipated inland on Saturday, threatening to dump rains in waterlogged areas also shaken by a major quake this week. Ten inches of rain are possible in the northern Leeward Islands, from Antigua and Barbuda to Anguilla. Download the Storm Shield Weather Radio App for your iPhone or Android device and get severe weather alerts wherever you are.