321 WWUS73 KFSD 291238 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 738 AM CDT Mon Jun 29 2026 IAZ012>014-020>022-031-032-NEZ014-SDZ071-292300- /O.CON.KFSD.XH.W.0001.000000T0000Z-260630T0200Z/ Sioux-O'Brien-Clay-Plymouth-Cherokee-Buena Vista-Woodbury-Ida- Dakota-Union- Including the cities of Sioux City, Jefferson, Orange City, Hull, Sanborn, Storm Lake, Beresford, Holstein, Alcester, Elk Point, Ida Grove, South Sioux City, Cherokee, Sioux Center, Sheldon, Spencer, Le Mars, Hartley, North Sioux City, Hawarden, Battle Creek, and Rock Valley 738 AM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. 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. && $$ SDZ039-054-055-060-061-065-068-292300- /O.EXA.KFSD.HT.Y.0002.260629T1800Z-260630T0200Z/ Kingsbury-Miner-Lake-Hanson-McCook-Hutchinson-Bon Homme- Including the cities of Bridgewater, Lake Preston, Freeman, Tyndall, Parkston, Canistota, Clayton, Arlington, Scotland, De Smet, Salem, Montrose, Menno, Emery, Alexandria, Howard, Avon, Tabor, Tripp, Springfield, Madison, and Orland 738 AM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM CDT THIS EVENING... * WHAT...Heat index values up to 103 expected. * WHERE...Portions of east central and southeast South Dakota. * WHEN...From 1 PM this afternoon to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ IAZ001>003-NEZ013-SDZ062-066-067-069-070-292300- /O.CON.KFSD.HT.Y.0002.000000T0000Z-260630T0200Z/ Lyon-Osceola-Dickinson-Dixon-Minnehaha-Turner-Lincoln-Yankton-Clay- Including the cities of Parker, Vermillion, Rock Rapids, Centerville, Inwood, Yankton, Arnolds Park, Sioux Falls, Tea, Allen, Ponca, Sibley, Milford, Irene, Larchwood, Harrisburg, Lennox, Wakefield, Canton, Spirit Lake, Chancellor, Viborg, Hurley, George, and Marion 738 AM CDT Mon Jun 29 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Heat index values up to 104. * WHERE...Portions of northwest Iowa, northeast Nebraska, and southeast South Dakota. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. 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. Monitor the latest forecasts and warnings for updates. && $$ MNZ071-072-080-081-089-090-097-098-SDZ040-056-292300- /O.CON.KFSD.HT.Y.0002.260629T1800Z-260630T0200Z/ Lincoln-Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock- Brookings-Moody- Including the cities of Jackson, Brookings, Hendricks, Slayton, Worthington, Flandreau, Mountain Lake, Ivanhoe, Lake Benton, Lakefield, Pipestone, Marshall, Fulda, Luverne, Windom, and Tyler 738 AM CDT Mon Jun 29 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM CDT THIS EVENING... * WHAT...Heat index values up to 104 expected. * WHERE...Portions of southwest Minnesota and east central South Dakota. * WHEN...From 1 PM this afternoon to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ Weisser