CAPE CANAVERAL, Fla. -- Shuttle Endeavour will land on Wednesday -- somewhere.

STS-111

For complete coverage of Endeavour's landing attempt on Wednesday, just click here.

That was the word from NASA as bad weather on Tuesday, for the second day in a row, prevented the spaceplane from landing at the Kennedy Space Center (KSC) in Florida.

"We're disappointed," said Endeavour commander Ken "Taco" Cockrell after the decision was made not to land.

Edwards Air Force Base in California, although activated for landing Tuesday, was ruled out early because of gusting winds.

With enough supplies on board to last until Thursday, NASA flight director John Shannon has said that Wednesday will be Endeavour's final day in space and that whichever landing site has acceptable weather first will welcome the shuttle home.

Forecasts for Wednesday indicate there still is a slight chance of rainshowers at KSC. The weather at Edwards, meanwhile, is expected to be ideal.

Opportunities to land at KSC are at 10:52 a.m. EDT (1452 GMT) and 12:28 p.m. EDT (1628 GMT).

Landing times available for Edwards come at 1:58 p.m. EDT (1758 GMT), 3:34 p.m. EDT (1934 GMT) and 5:10 p.m. EDT (2110 GMT).

Officials are hopeful they can land in Florida on the first try, before the heat of the day kicks in and begins building threatening clouds over the Shuttle Landing Facility.

But if that doesn't turn out to be the case, mission managers say they will definitely bring Endeavour back to Earth to a concrete strip on the Mojave Desert northeast of Los Angeles.

The space agency would rather avoid the California landing option due to the increased risk, cost and schedule delays associated with having to ferry an orbiter back to Florida atop a 747 jumbo jet. But with Endeavour's mission already extended two days, NASA may be forced to accept those consequences.

Although there were faint glimmers of hope at times, the bleak weather picture Tuesday was fairly obvious from the moment the sun came up. When the plan for the day was radioed up to the crew, Cockrell asked flight controllers to try every trick in the book to clear the sky.

"Sounds like our best opportunity is the first one for KSC," Cockrell said.

"Taco, that's right. Just like yesterday, as the day progresses we expect the weather to degrade," replied astronaut Bill Oefelein from Mission Control in Houston.

"Well, do your anti-rain dance and keep the storms from developing or moving towards KSC and let's come home," Cockrell requested.

If anyone danced it didn't work. Rainshowers and thunderstorms began building too close to the space center and by 10:45 a.m. EDT (1445 GMT) it was clear the shuttle had to remain in space another day.

The situation is all too familiar for Cockrell, who is making his fifth spaceflight and his third as a shuttle commander.

During each of Cockrell's missions as shuttle skipper, the end of his flight was waved off twice, requiring a landing on the third day of tries.

In 1996 he wound up landing in Florida, and during a flight last year brought the shuttle home to California.

Meanwhile, the U.S. spaceflight endurance record keeps growing.

Aboard Endeavour are returning Expedition Four astronauts Dan Bursch and Carl Walz, who have been in space since December.

Tuesday was their 195th day in space, a week more than the previous record holder, Shannon Lucid, who was in space for 188 days during a 1996 stay at the Russian space station Mir.