A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.
A rare and deadly winter storm descended across the southern U.S. on Tuesday, leaving some record-setting snow totals and halting travel for millions of Americans in Louisiana, Texas and Florida.
The map released by the US Drought Monitor on Thursday showed that more than 33 percent of the US and Puerto Rico were in drought.
After a record-breaking Gulf Coast storm, cities like New Orleans and Pensacola, Florida, have had more snow this winter than Omaha, Des Moines and New York.