CBS Evening News takes the next step in its legacy with CBS Evening News Plus — an extra half-hour of news to dive deeper into the stories shaping our world. Stream on CBS News 24/7: https://cbsn.ws/4hRHfKi | CBS Evening News

Nearly 30 states could be impacted with heavy snow, thick ice and brutal cold — making the storm a potentially life-threatening weather event. Meteorologist Lonnie Quinn is tracking the forecast. https://cbsn.ws/3ZqJayk | CBS Evening News

A ball girl collapsed on court at the Australian Open on Sunday in the Melbourne heat. Turkish tennis player Zeynep Sönmez stopped play and led the ball girl to safety as the crowd cheered. Sönmez later rallied for the win in the deciding set. | CBS Evening News

Tonight, Norah O'Donnell is broadcasting live from the U.S.S. Nimitz. It’s here in the Western Pacific where America’s Naval power is on full display. Guam houses three military bases, U.S. Air Force, Navy and is now a new home to 5,000 Marines. | CBS Evening News