462 WWUS73 KDMX 280557 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 1257 AM CDT Sun Jun 28 2026 IAZ006-007-016-017-026>028-038-039-281600- /O.UPG.KDMX.XH.A.0001.260628T1800Z-260701T0200Z/ /O.EXB.KDMX.XH.W.0001.260629T1700Z-260701T0200Z/ Winnebago-Worth-Hancock-Cerro Gordo-Franklin-Butler-Bremer-Grundy- Black Hawk- Including the cities of Cedar Falls, Britt, Garner, Northwood, Manly, Dike, Forest City, Waverly, Lake Mills, Grundy Center, Reinbeck, Clarksville, Kanawha, Mason City, Allison, Greene, Waterloo, Wellsburg, Aplington, Conrad, Dumont, Parkersburg, Hampton, Shell Rock, and Clear Lake 1257 AM CDT Sun Jun 28 2026 ...EXTREME HEAT WARNING IN EFFECT FROM NOON MONDAY TO 9 PM CDT TUESDAY... * WHAT...Dangerously hot conditions with heat index values above 100 expected. * WHERE...Northern and northeastern Iowa. * WHEN...From noon Monday to 9 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Extreme heat will persist through much of next week, potentially including the 4th of July weekend. 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. 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. && $$ IAZ004-005-015-023>025-033>037-044>050-057>062-070>075-081>086-092>097-281600- /O.CON.KDMX.XH.W.0001.260628T1800Z-260701T0200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Wright-Sac-Calhoun- Webster-Hamilton-Hardin-Crawford-Carroll-Greene-Boone-Story- Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Cass- Adair-Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas- Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis- Including the cities of Iowa Falls, Knoxville, Marshalltown, Fort Dodge, Mount Ayr, Bedford, Ames, Des Moines, Gilmore City, Boone, Clarion, Creston, Chariton, Newton, Leon, Estherville, Pomeroy, Fonda, Pocahontas, Pella, Webster City, Eldora, Humboldt, Waukee, Lenox, Humeston, Rolfe, Oskaloosa, Early, Rockwell City, Jefferson, Adel, Atlantic, Fontanelle, Lake View, Earlham, Albia, Perry, Gladbrook, Norwalk, Winterset, Stuart, Carlisle, Wall Lake, Manson, Grinnell, Greenfield, Lamoni, Audubon, Schaller, Algona, Toledo, Laurens, Adair, Seymour, Eagle Grove, Dysart, Allerton, Belmond, Emmetsburg, New Market, Guthrie Center, Indianola, Centerville, Odebolt, Corning, Denison, Panora, Corydon, Ottumwa, Lake City, Carroll, Bloomfield, Tama, Traer, Bayard, Ackley, Sac City, Osceola, Casey, and Exira 1257 AM CDT Sun Jun 28 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM CDT TUESDAY... * WHAT...Dangerously hot conditions with heat index values above 100 expected. * WHERE...Much of Iowa. * WHEN...From 1 PM this afternoon to 9 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Extreme heat will persist through much of next week, potentially including the 4th of July weekend. 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. 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. && $$ 67