Orlando - President Barack Obama canceled a campaign event in Florida on Monday to return to Washington ahead of Hurricane Sandy, a White House spokesman said.

A woman takes a photo at Beach 98th street on the boardwalk at Rockaway beach in the Queens borough of New York October 29, 2012.Hurricane Sandy could be the biggest storm to hit the United States mainland when it comes ashore on Monday night, bringing strong winds and dangerous flooding to the East Coast from the mid-Atlantic states to New England, forecasters said on Sunday.[Photo/Agencies]

"Due to deteriorating weather conditions in the Washington area, the president will not attend today's campaign event in Orlando. The president will return to the White House to monitor the preparations for and early response to Hurricane Sandy," White House spokesman Jay Carney said in a statement.

Sandy, a massive storm bearing down on the US East Coast, has forced the evacuation of hundreds of thousands residents.

Obama arrived in Florida on Sunday night, coming early to try to beat the storm. He was to have held a joint campaign event with former President Bill Clinton.

Hurricane Sandy is seen on the east coast of the United States in this NASA handout satellite image taken at 0715 GMT, October 29, 2012.[Photo/Agencies]