The Spanish Town Mardi Gras parade plans to roll on time at noon Saturday despite forecasts of heavy rain most of the day, parade organizers said.

"A little bit of rain will not stop us," said Bill Brumfield, president of the Society for the Preservation of Lagniappe in Louisiana (SPLL), which puts on the parade. "That's Louisiana liquid sunshine."

The parade will only delay — not cancel — for dangerous weather, Brumfield said, which would include tornado threats or severe lightning. However, forecasters say that's unlikely.

"We do expect a couple of thunderstorms, but not widespread," said Danielle Manning, a meteorologist in the National Weather Service's Slidell office. "One or two of them could become severe, but it's a very marginal threat."

However, Manning said to expect bands of rain from sunrise Saturday until Sunday evening. She said there will be some breaks in the rain, but when that could happen is not clear. 

The Spanish Town Mardi Gras parade has never been canceled, though in 2011 and 2012 organizers did adjust for severe weather, rolling early because of a fast-moving thunderstorm and tornado watch, and then the following year delaying because of heavy storms.

"I wish we had a day like today tomorrow, but we'll see what we get," Brumfield said Friday afternoon, when it was sunny and almost 75 degrees. "Most Louisiana folks (can deal) with the rain."

He said he hasn't heard from any floats or krewes who have dropped out yet because of the weather. 

"It doesn't appear to have scared them off," Brumfield said. "If you're there at noon, you can roll with us."

The parade, with a theme of "Game of Thongs," is following a longer route this year, a plan designed to help spread out the crowd and improve safety.

Follow Grace Toohey on Twitter, @grace_2e.