Today is a party in New Orleans. It is Fat Tuesday. We take a live look over Bourbon Street where it's mostly quiet right now but will be a much different story later today. And the city is taking no chances when it comes to security.

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

Mardi Gras is all about having these moments. This city is like nowhere else in the country right now,” said Kendall Calyen, 41, marveling at the 200-year-old tradition unfolding before his eyes. Thousands of revelers adorned in beads and outlandish costumes were filling the streets as New Orleans prepared to celebrate just ahead of severe storms.