TULSA, Oklahoma - The forecast led several communities to cancel Christmas parades this weekend. The Tulsa and Catoosa Christmas parades have been postponed a week. 

Organizers say the threat of a winter storm bearing down on Oklahoma prompted them to postpone it to December 15, 2018. It will take place at 1 p.m.

The Tulsa parade involves a lot of police officers and city employees to block off the route - and many also get called for snow removal - and extra patrols.

Some of the floats were finished and others were still being put together in a ballroom at the Tulsa Convention Center. The decision to delay the parade takes the pressure off to get everything ready right now, but it's a huge job to reschedule all of the people involved - 10 marching bands just to start.

The sponsor says it will be the same parade, same route, just one week later.

"There's a lot of city resources that are needed because of the forecast. So just so those resources can take care of Tulsa, take care of the residents of Tulsa, we're delaying the Tulsa Christmas Parade back to December 15th, 1 p.m.," said Paul Ross, American Waste Control vice president.

The city has already started scheduling their people for the new parade time - and the parade sponsors are hoping the weather next week - is better than the forecast for this one.

The City of Catoosa says it has rescheduled its parade for December 15th at 2 p.m. 

"While trying to remain hopeful that the weather would not interfere with the parade the Catoosa Chamber realizes that they must be mindful of the safety and well-being of everyone involved. The Breakfast with Santa at the Catoosa Public Library has been cancelled at this time as well," the city posted on its Facebook page.

The Owasso, Sand Springs, Sapulpa and Collinsville Christmas parades have been canceled. 

According to a news release from the City of Owasso, "This decision has not made hastily nor lightly, the Christmas Parade is something we look forward to each year with great anticipation, however, our first priority is to ensure the safety of the parade participants as well as the spectators and citizens."