DON'T EVER LET ANYONE TELL YOU A CATEGORY 1 STORM CAUSES LITTLE DAMAGE

CNN REPORTING:

The USGS stream gage at Belle Chasse, Louisiana, showed the Mississippi flowing upstream at 182,000 cubic feet per second, surging to 10 feet above its previous height. Average flow for the Mississippi River at Belle Chase is about 125,000 cfs, toward the Gulf of Mexico, the USGS said

  MORE HERE: BIG AND BOLD TEXT ADDED FOR EMPHASIS:

USGS: ISAAC REVERSED THE FLOW OF THE MISSISSIPPI FOR 24 HOURS!