The threat of severe weather has left New Orleans Mardi Gras traditions at risk, with parades being shortened or canceled, warnings issued over flying debris and officials urging extreme caution

Thousands of revelers in outlandish costumes will fill the streets of New Orleans as the city celebrates Mardi Gras Day.

Mardi Gras gives people the opportunity to celebrate before the Lenten season, where people become more disciplined and give up habits for 40 days.