NEW ORLEANS (AP) — Officials rushed to reschedule Mardi Gras celebrations and warned revelers against brining umbrellas and tents as powerful storms with a threat of tornadoes were expected to strike Louisiana and other parts of the South on Tuesday.

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.

Powerful storms with a threat of tornadoes are expected to punch through Louisiana and other parts of the South today just as costumed revelers celebrate Mardi Gras with huge parades and partying in the streets of New Orleans and other cities in the region.