A Colorado woman and her three young daughters were killed on Tuesday when their car was swept into a stream by flash floods in a national forest in south-central Wyoming, authorities said. The woman’s husband, 39-year-old Alex Constantinides, who survived after escaping the family’s submerged van and scrambling to safety, was treated at a local hospital, Wyoming Highway Patrol Sgt. Stephen Townsend said. Killed in the flood were Laurel Constantinides, 39, and her children: Lucia, 2; Zoey, 5; and Hanna, 8, all of Colorado Springs.