MIAMI (AP) -- Hurricane Bill may not hit the U.S. mainland, but it could generate dangerous conditions this weekend along the East Coast.

The storm threatens to bring significant flooding to Bermuda's coastlines and dangerous waves and riptides to the eastern U.S. coast. Bermuda has issued a tropical storm warning.

Former President Bill Clinton and his wife, Secretary of State Hillary Rodham Clinton, arrived in Bermuda on Wednesday for a 3- or 4-day getaway.

The Category 3 storm's maximum sustained winds have weakened slightly to near 120 mph. Forecasters say the hurricane is becoming less organized, but could still regain some strength. Bill is expected to start gradually weakening tomorrow.

The National Hurricane Center's five-day track shows Bill staying well out to sea and only coming close to landfall in Canada's Maritime Provinces before veering back out into the north Atlantic.

For the latest on Hurricane Bill, visit our Hurricane Web Channel.