Ida downs New Orleans power on deadly path through Louisiana

Bourbon Street is near empty ahead of Hurricane Ida in New Orleans, Sunday, Aug. 29, 2021. (David Grunfeld/The Advocate via AP)

Cars drive through flood waters along route 90 as outer bands of Hurricane Ida arrive Sunday, Aug. 29, 2021, in Gulfport, Miss. (AP Photo/Steve Helber)

A man passes by a section of roof that was blown off of a building in the French Quarter by Hurricane Ida winds, Sunday, Aug. 29, 2021, in New Orleans. (AP Photo/Eric Gay)

A utility worker photographs waves as they slam against a sea wall at the city marina as outer bands of Hurricane Ida arrive Sunday, Aug. 29, 2021, in Bay Saint Louis, Miss. (AP Photo/Steve Helber)

A person walks through the French Quarter ahead of Hurricane Ida on August 29, 2021 in New Orleans, Louisiana. Residents of New Orleans continue to prepare as the outer bands of the hurricane begin to cut across the city. Ida is expected to make landfall as a Category 4 storm later today. (Brandon Bell/Getty Images/TNS)

A man takes pictures of high waves along the shore of Lake Pontchartrain as Hurricane Ida nears, Sunday, Aug. 29, 2021, in New Orleans. (AP Photo/Gerald Herbert)

NEW ORLEANS — Hurricane Ida knocked out power to all of New Orleans and inundated coastal Louisiana communities on a deadly path through the Gulf Coast that was still unfolding and promised more destruction.