Lyon-Osceola-Sioux-O'Brien-Clay-Plymouth-Cherokee-Buena Vista- Woodbury-Ida-Dixon-Dakota-Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Lincoln-Bon Homme-Yankton-Clay- Union- Including the cities of Ida Grove, Sioux City, Freeman, Avon, George, Rock Rapids, Hull, Rock Valley, Mitchell, Parker, Hurley, Tabor, Chancellor, Canton, Irene, North Sioux City, Canistota, Emery, Marion, Salem, Vermillion, Allen, Centerville, Larchwood, Scotland, Yankton, Beresford, Hartley, Storm Lake, Tyndall, Sibley, Sioux Falls, Corsica, Parkston, Viborg, Lennox, Holstein, Platte, Tea, Le Mars, Ponca, Armour, Orange City, Clayton, Montrose, Sheldon, Menno, Delmont, Wagner, Sioux Center, Elk Point, Cherokee, Alexandria, Hawarden, Lake Andes, Inwood, Tripp, Springfield, Alcester, Wakefield, Bridgewater, Marty, Harrisburg, Battle Creek, Jefferson, Sanborn, South Sioux City, and Spencer 201 PM CDT Mon Jun 8 2026 ...HEAT ADVISORY IN EFFECT FROM 1 PM TO 9 PM CDT TUESDAY... * WHAT...Heat index values up to 103 expected. * WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and south central and southeast South Dakota. * WHEN...From 1 PM to 9 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. &&
