442 WWUS73 KFSD 291148 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 648 AM CDT Mon Jun 29 2026 SDZ038-052-057-291300- /O.EXP.KFSD.FG.Y.0009.000000T0000Z-260629T1200Z/ Beadle-Jerauld-Brule- Including the cities of Huron, Alpena, Kimball, Wessington Springs, and Chamberlain 648 AM CDT Mon Jun 29 2026 ...DENSE FOG ADVISORY WILL EXPIRE AT 7 AM CDT THIS MORNING... Fog has lifted and is no longer reducing visibility below 1 mile. $$ IAZ012>014-020>022-031-032-NEZ014-SDZ071-292300- /O.CON.KFSD.XH.W.0001.000000T0000Z-260630T0200Z/ Sioux-O'Brien-Clay-Plymouth-Cherokee-Buena Vista-Woodbury-Ida- Dakota-Union- Including the cities of Le Mars, Ida Grove, Hawarden, North Sioux City, Hartley, Jefferson, Holstein, Hull, Beresford, Cherokee, Battle Creek, South Sioux City, Rock Valley, Storm Lake, Sanborn, Sioux Center, Elk Point, Sheldon, Alcester, Orange City, Sioux City, and Spencer 648 AM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with heat index values up to 108. * WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ 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 Viborg, Hurley, Canton, Milford, Wakefield, Inwood, Rock Rapids, Sioux Falls, Harrisburg, Tea, Irene, Marion, Ponca, Chancellor, Larchwood, George, Yankton, Allen, Lennox, Spirit Lake, Vermillion, Parker, Sibley, Arnolds Park, and Centerville 648 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. && $$ MNZ071-072-080-081-089-090-097-098-SDZ040-056-292300- /O.CON.KFSD.HT.Y.0002.260629T1800Z-260630T0200Z/ Lincoln-Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock- Brookings-Moody- Including the cities of Flandreau, Ivanhoe, Tyler, Brookings, Jackson, Marshall, Hendricks, Fulda, Windom, Lakefield, Luverne, Slayton, Pipestone, Worthington, Lake Benton, and Mountain Lake 648 AM CDT Mon Jun 29 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM CDT THIS EVENING... * WHAT...Heat index values up to 104 expected. * WHERE...Portions of southwest Minnesota and east central South Dakota. * WHEN...From 1 PM this afternoon to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ Dux