The National Weather Service (NWS) in Sterling, Virginia, has issued a tornado warning for northwestern Charles County in southern Maryland, effective until 3:15 PM EDT today. At 2:41 PM EDT ...

Officials in eastern Tennessee say two people were killed when severe storms with a possible tornado moved through the region.

Colorado hospitalist Jason Persoff, MD, uses plenty of technology when he chases storms in hopes of seeing a tornado. He checks sophisticated forecasting models and uses a high-quality radar app.