"This is an agonizing time for the people of the Gulf Coast,"
He asked Americans to be prudent in their consumption of energy, but called the hurricane a "temporary disruption" to gasoline supplies. "Don't buy gas if you don't need it," the president said.
"We're united in our determination to help the good people who have been effected by this hurricane," Mr. Bush said.
The president will fly to Mobile, Ala., then survey the Alabama and Mississippi coast by helicopter before visiting some sites on the ground in Mississippi Friday. He then plans to go to New Orleans for an aerial tour, said White House press secretary Scott McClellan.
"Tomorrow's visit is another way for the president to show the nation's support and compassion for the victims and our appreciation for those who are helping with the ongoing rescue and recovery efforts," McClellan said. "It is an opportunity for the president to get a firsthand, up close look at the response and recovery efforts and to hear from those on the ground."
Meantime, House and Senate Republican aides that Congress was reconvening from its summer recess late Thursday or Friday to pass emergency legislation for victims of Hurricane Katrina.
Ron Bonjean, spokesman for House Speaker J. Dennis Hastert, R-Ill., said Republicans had contacted Democrats about bringing the House back on Friday at noon to pass the emergency bill.
Congress had been scheduled to reconvene next week after a long summer break, Democratic Leader Harry Reid earlier Thursday urged majority Republicans to drop plans to debate legislation repealing the estate tax in favor of hurricane-related relief.
"Given the tragic and devastating events along the Gulf Coast, members of the Senate would have great difficulty explaining why we were debating the estate tax during our first days back when we know hundreds of thousands of families are suffering," he wrote Majority Leader Bill Frist.
The White House has not yet sent lawmakers a request for funding for hurricane-related costs. Amy Call, a spokeswoman for Frist, said the GOP would bring up relief measures as quickly as possible. "Certainly our first priority is Katrina," she said.
CBS News has learned that the amount of the request will likely be $10.5 billion, with $10 billion for FEMA and $500 million for the Defense Department.
Mr. Bush earlier acknowledged the frustration of people who need food, water and shelter and are desperate for the federal government's massive relief effort to kick into high gear.
Already under criticism for his long vacation during wartime, the president moved quickly once returning to Washington to assert visible control over the relief effort, CBS News correspondent Bill Plante reports for the Early Show. Remembering that his father took a hit when people thought he didn't respond to Hurricane Andrew quickly enough, Mr. Bush set up a roster of eight U.S. ships, about 11,000 National Guard troops and units of the Army Corps of Engineers to assist hurricane recovery.
"I fully understand people wanting things to have happened yesterday," Mr. Bush said in a live interview in the Roosevelt Room of the White House with ABC. "I understand the anxiety of people on the ground. ... So there is frustration. But I want people to know there's a lot of help coming."
Mr. Bush also urged a crackdown on looting and crime that has spread throughout New Orleans.
"I think there ought to be zero tolerance of people breaking the law during an emergency such as this — whether it be looting, or price gouging at the gasoline pump, or taking advantage of charitable giving or insurance fraud," Mr. Bush said. "And I've made that clear to our attorney general. The citizens ought to be working together."