A sign from the Hurricane Katrina era seven years ago. (Wikimedia Commons)

UPDATE: The Washington Post reports that a curfew will be issued in New Orleans following flooding and power outages.

Multiple streets have been flooded or closed in the city.

Four arrests have been made in looting incidents Tuesday night.

Gov. Bobby Jindal also said that a levee may be intentionally breached to relieve the swelling in the flooded Plaquemines Parish. 

Hurricane Isaac continued to hit Louisiana with hard rains and heavy winds Wednesday, with the biggest threat of flooding looming from central Louisiana to the Florida panhandle, according to USA Today.

Winds have reached 75 mph, the storm located about 45 miles from New Orleans on this, the seventh anniversary of Hurricane Katrina.

The levees set up from Hurricane Katrina have held the storm so far, The New York Times reports, but the longer the storm stays, the harder it will be for those levees to hold.

In Plaquemines Parish, 50 miles southeast of New Orleans, water spilled over a levee.  

There was a 12-foot storm surge there late Tuesday night that registered as one of the highest surges of the hurricane so far.

Though Isaac's center is miles from New Orleans, 60-mph winds could be felt there along with heavy sheets of rain.  

The Washington Post reported that officials closed the city's floodgates, meaning to prevent storm surges from entering the city.

Read more of Neon Tommy's Hurricane Isaac coverage here.

Reach Executive Producer Michael Juliani here; follow him on Twitter here.