Data: NOAA; Map: Erin Davis/Axios Visuals
The third straight La Niña winter in the U.S. is likely to cause drought to expand and deepen from California to the Plains, branching out across the Southeast, NOAA said Thursday.
How it works: Currently, water levels along certain stretches of the Mississippi River are so low that centuries-old shipwrecks are being revealed, and modern-day barge traffic is imperiled.