Powerful storms bearing a threat of tornadoes are expected to punch through Louisiana and other parts of the South on Tuesday.

Officials are rushing to reschedule Mardi Gras celebrations and warning revelers against brining umbrellas and tents as powerful storms with a threat of tornadoes are expected to strike Louisiana and other parts of the South.

The city’s two biggest parades are set to go on with earlier start times, shorter routes, and no marching bands, New Orleans Police Superintendent Anne Kirkpatrick told reporters Monday.