An estimated $28.3 trillion worth of homes, businesses and infrastructure in the 18 Atlantic coastal states are vulnerable to hurricane strikes.
'The season has the potential to be extremely active, and could be the most active since 2010'.
An average hurricane season in the Atlantic, which runs from June 1 to November 30, produces 12 named storms, of which six become hurricanes, including three major hurricanes.
First, the Atlantic has already produced six named storms - that means we've reached half the total named storms during an average season yet we are just now entering the busy period. The agency's expected number of five to nine hurricanes overall is unchanged.
The storm was moving west at 20 kilometers per hour and packing maximum sustained winds of 100 kilometers per hour. There is now almost unanimous consensus between governmental, private, and scholarly prognosticators that the current season's activity will end up above average. "This is, in part, because the chance of El Niño forming, which tends to prevent storms from strengthening, has dropped significantly from May".
El Nino is an ocean warming trend that typically reduces hurricanes in the Atlantic, Gulf of Mexico and Caribbean Sea but boosts storms in the eastern Pacific.
The second landfall "will be much stronger than the first one", churning up waves up to five meters high, said Alberto Hernandez, an official with Mexico's National Meteorological Service.
In 1953, the U.S. began using only female names for storms.
All the available prediction models are pointing to a more active season than they did in May, Bell added, urging people in the region to prepare emergency kits and supplies.
Now a tropical storm, Franklin is predicted to reach hurricane strength later Wednesday or early Thursday when it makes landfall in Mexico.
While the Atlantic has produced six named storms, these have been short lived, weak cyclones, nearly all of which were minimal tropical storms.