As Southern California braces for a storm heading our way, officials are warning residents of the potential for tornadoes. Dr. Ariel Cohen, a lead meteorologist with the National Weather Service, shares what the public can do in case a tornado forms amid the storm. For a timeline on when the system is expected to arrive, click here: http://4.nbcla.com/0idu4FI | NBC LA

At least one tornado was confirmed in Arkansas on Saturday as severe weather blasts through the midsection of the country — and a surge of cold air is coming in right behind it that’s expected to bring the first frost and freeze alerts of the season to the Midwest and Appalachia. Meteorologist Andrew Kozak has your latest weather forecast. | CBS News