Hoiatused, Johnson Dam

Heat Advisory issued July 17 at 1:49AM MDT until July 19 at 9:00PM MDT by NWS Rapid City SD * WHAT...Peak afternoon heat index values of 95 to 105. * WHERE...Portions of northwestern, south central, and southwestern South Dakota and northeast Wyoming. * WHEN...Until 9 PM MDT /10 PM CDT/ Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.