KEY WEST, Fla. -- The first rain from Hurricane Dennis started falling Friday on the Florida Keys as the storm barreled toward the Gulf of Mexico, and forecasters warned that it might score a direct hit on the island chain.
The wind weakened steadily from 150 mph to about 110 mph Friday night, but was expected to gain strength as it emerged over the Florida Straits and into the southeastern Gulf of Mexico later today. Even if the eye passes to the west of the Keys, forecasters warned, hurricane-force winds extended up to 50 miles from the center, and tropical storm-force winds stretched up to 160 miles out.
Key West's streets were calmer than usual Friday, the result of an evacuation order issued a day earlier. The storm could batter the islands by evening, forecasters said. Morning breezes were expected to grow into stronger winds, joined by up to 8 inches of rain and storm surges of up to 6 feet.
Utility workers were out Friday to trim trees away from power lines, but outages were expected before day's end, said Florida Keys Electric Co-op CEO Tim Planer. Dennis began to cross Cuba on Friday afternoon, and was described as "extremely dangerous" by the National Hurricane Center in Miami. Dennis was blamed for at least five deaths in Haiti.
After passing the Keys, the storm's arms could batter Florida's west coast before the center hits the U.S. mainland around late Sunday, somewhere between the Florida Panhandle and Louisiana.
An estimated 40,000 residents and tourists were ordered out of the beachside town of Gulf Shores, Ala., on Friday, and evacuation was also requested in a flood-prone parish south of New Orleans that is home to 458,000. Mississippi officials planned an announcement later in the day.
Inland-bound traffic along the coast was already growing heavy, and hotels were filling more than 150 miles to the north.
In Florida, some gas stations had run out of fuel Friday, and cars lined up at those that still had supplies. State officials said fuel supplies and distribution were normal, and dry pumps would be restocked by today.
A hurricane warning was issued for the lower Keys. A hurricane watch was in effect for the middle and upper Keys.
Gov. Jeb Bush declared a state of emergency and cut short a Maine vacation to return to Tallahassee. Everyone in the southernmost Keys, along with all tourists and mobile home residents in the low-lying island chain, were ordered to evacuate. People snatched up bottles of water and other hurricane supplies as cars streamed out of the Keys.
Airlines reported that nearly all flights out of Key West were full and Greyhound added buses to help get thousands of people out of the area.
Dennis weakened slightly as it arrived in Cuba, but forecasters expect it to remain a major hurricane with winds of at least 111 mph when it enters the Gulf in the evening. It was unlikely to return to its most ferocious strength, however, because the sea water isn't warm enough yet, center meteorologist Chris Hennon said.
Forecasters expected a possible storm surge of up to 7 feet along the Florida's southwestern coast, and tornadoes could also form through today in the state's southern section, including the Keys. The southwestern county of Collier issued a voluntary evacuation for people living in coastal areas and on barrier islands.
At Cape Canaveral, NASA decided Friday that Dennis would be far enough west to let the space shuttle Discovery stay on its launch pad, and the liftoff of the first shuttle mission since the Columbia disaster remained on track for Wednesday.
Many in Dennis' projected path already got a wake-up call this week from a surprising Tropical Storm Cindy, which caused three deaths, knocked out power to thousands, and spawned twisters that toppled trees and caused up to $40 million damage to the Atlanta Motor Speedway.
By midday Friday, the remnants of Cindy were centered on Maryland's eastern shore, moving toward New England. Flood and flash flood watches were posted from Georgia into New England.
Four hurricanes battered Florida last year, causing more than $40 billion in damage.