After a freezing winter storm shut schools, cut power and cancelled or delayed flights, the South is slowly thawing as warmer weather melts snow and ice.

Snow and ice across the U.S. South are expected to relinquish their grip only slowly as the weekend continues.

Emergency weather shelters in Portland, Oregon, are calling for volunteers amid high demand and staffing issues as a winter storm brings snow, freezing rain, ice and frigid temperatures.