How strong were the winds of Hurricane Ida? So strong they made the Mississippi River flow backwards.
According to the U.S. Geological Survey, the storm created a 'negative flow' at the point where the river empties into the Gulf of Mexico - sending the water backwards for about two hours.
A similar phenomena happened during Hurricane Katrina in 2005 and Hurricane Isaac in 2012.
Which is scarier to deal with - a hurricane or a tornado?