847 WWUS73 KFSD 290542 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 1242 AM CDT Mon Jun 29 2026 IAZ012>014-020>022-031-032-NEZ014-SDZ071-291900- /O.UPG.KFSD.HT.Y.0002.000000T0000Z-260630T0200Z/ /O.NEW.KFSD.XH.W.0001.260629T0542Z-260630T0200Z/ Sioux-O'Brien-Clay-Plymouth-Cherokee-Buena Vista-Woodbury-Ida- Dakota-Union- Including the cities of South Sioux City, Battle Creek, Elk Point, Orange City, Sioux City, Cherokee, Storm Lake, Ida Grove, Sheldon, Sioux Center, Rock Valley, Alcester, Hull, Jefferson, Le Mars, North Sioux City, Hawarden, Sanborn, Beresford, Spencer, Hartley, and Holstein 1242 AM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with heat index values up to 108. * 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. && $$ MNZ071-097-SDZ040-056-291900- /O.EXA.KFSD.HT.Y.0002.260629T1800Z-260630T0200Z/ Lincoln-Pipestone-Brookings-Moody- Including the cities of Brookings, Pipestone, Tyler, Lake Benton, Flandreau, Ivanhoe, and Hendricks 1242 AM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM CDT THIS EVENING... * WHAT...Heat index values up to 101 expected. * WHERE...In Minnesota, Lincoln and Pipestone Counties. In South Dakota, Brookings and Moody Counties. * WHEN...From 1 PM this afternoon to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ IAZ001>003-NEZ013-SDZ062-066-067-069-070-291900- /O.CON.KFSD.HT.Y.0002.000000T0000Z-260630T0200Z/ Lyon-Osceola-Dickinson-Dixon-Minnehaha-Turner-Lincoln-Yankton-Clay- Including the cities of Harrisburg, Larchwood, Marion, Lennox, Wakefield, Vermillion, Centerville, Rock Rapids, Hurley, Viborg, Allen, George, Inwood, Spirit Lake, Arnolds Park, Ponca, Yankton, Irene, Parker, Sibley, Milford, Sioux Falls, Canton, Tea, and Chancellor 1242 AM CDT Mon Jun 29 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Heat index values 100 to 105 expected. * 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. && $$ MNZ072-080-081-089-090-098-291900- /O.CON.KFSD.HT.Y.0002.260629T1800Z-260630T0200Z/ Lyon-Murray-Cottonwood-Nobles-Jackson-Rock- Including the cities of Worthington, Mountain Lake, Slayton, Fulda, Luverne, Lakefield, Jackson, Windom, and Marshall 1242 AM CDT Mon Jun 29 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM CDT THIS EVENING... * WHAT...Heat index values up to 103 expected. * WHERE...A portion of southwest Minnesota. * WHEN...From 1 PM this afternoon to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ Samet