NEW ORLEANS  — Heavy rains from Tropical Storm Lee were falling in southern Louisiana and pelting the Gulf Coast on Saturday as the storm's center trudged slowly toward land, where businesses were already beginning to suffer on what would normally be a bustling holiday weekend. The storm was expected to drop 10 to 15 inches of rain across southern Louisiana.

No injuries or deaths had been reported as of early Saturday afternoon, though power was knocked out to at least 35,000 people and officials were still cautiously watching levees and water pumps around the low-lying region.

AP Photo/Bill Haber

A man guides a truck through the flood waters caused by Tropical Storm Lee in New Orleans, Saturday. Heavy rains from Tropical Storm Lee were falling in southern Louisiana and pelting the Gulf Coast on Saturday as the storm's center trudged slowly toward land.

Tropical storm warning flags were flying from Alabama to Texas and flash flood warnings extended along the Alabama coast into the Florida Panhandle. The storm's slow forward movement meant that its rain clouds would have more time to disgorge themselves on any cities in their path.

The National Hurricane Center said Lee's center was about 45 miles (72 km) southwest of Morgan City, moving north at 6 mph (9 kph) with maximum sustained winds of 60 mph (97 kph).

Forecasters expected the storm to fluctuate in strength through the day, though it was not expected to reach hurricane strength. Its surge was pegged at 4 feet high above normal sea level in Shell Beach, and 2 feet as far east as Pascagoula, Miss.

Lee has confounded forecasters since it began developing at midweek and pulled another surprise overnight Friday by coming out of a virtual stall and moving north toward the central Louisiana coast.

In New Orleans, sporadic downpours caused some street flooding in low-lying areas early Saturday, but pumps were sucking up the water and sending it into Lake Pontchartrain. Lee's surge so far had not penetrated levees along the coast, said National Weather Service forecaster Robert Ricks in Slidell, La.

Tornado warnings were issued overnight in Louisiana and south Mississippi but Ricks said there were no confirmed touchdowns. So far, damage appeared confined to downed power lines and trees.

But he cautioned Lee's impact would continue to be felt.

"In a storm like this, tornadoes can flash up for a few seconds or a minute and be gone. We expect more sightings on Saturday," Ricks said.

Ricks said Lee probably had reached its maximum intensity and was unlikely to become a hurricane as it pushes ashore.

Earlier it appeared Lee was on track to pass directly through the New Orleans area, but its overnight move caused forecasters to shift its projected track farther to the west. Heavy rain could pelt the Baton Rouge and New Orleans area for the next 36 hours.

Entergy, a major utility in the region, reported more than 35,000 customers without power, mostly in the New Orleans area and along the coast. There were scattered outages well inland into central Louisiana and Mississippi.

Lee was the first named storm to make landfall in Louisiana since Hurricane Gustav, which struck on Labor Day in 2008.

Gustav provided a major test of rebuilt levee protection in New Orleans, where billions of federal dollars were spent after levees failed during Hurricane Katrina and flooded an estimated 80 percent of the city.

On Saturday, levees were holding, though sandbagging had been done in some places as a precaution.

Gusty winds whipped through the downtown area, but bridges, including the 24-mile-long Lake Pontchartrain Causeway, remained open to traffic.

In coastal Mississippi, Hancock County emergency management director Brian Adams said rainfall early Saturday from the storm has "come in spurts ... heavy at one time, less at others."

Adams said streets in low-lying areas of the county are under a voluntary evacuation.

"We've got a lot of street flooding in those areas ... nothing in houses yet."

Though local officials urged residents to prepare for the worst, Lee appeared to be a holiday weekend annoyance for many people. Some didn't expect the tropical storm to live up to the legacy of killer hurricanes like Betsy, Camille and Katrina.

"It's a lot of rain. It's nothing, nothing to Katrina," said Malcolm James, 59, a federal investigator in New Orleans who lost his home after levees broke during Katrina in August 2005 and had to be airlifted by helicopter.

The storm was washing out Labor Day weekend festivities, with cancelations of parades and other events in Orange Beach and Gulf Shores, Ala. In Louisiana, programming was canceled at state parks and historic sites in the southern part of the state.