#EAS for Sioux, #NE; #Converse, #WY; #Niobrara, #WY: National Weather Service: SEVERE THUNDERSTORM WARNING in effect for this area until 9:15 PM MDT for DESTRUCTIVE 80 mph winds. Take shelter in a sturdy building, away from windows. Flying debris may be deadly to those caught without shelter. Source: NWS Cheyenne WY** DO NOT RELY ON THIS FEED FOR LIFE SAFETY, SEEK OUT OFFICIAL SOURCES ***