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Home Return to list Heat Advisory 0007 Issued by the Davenport / Quad Cities Forecast Office
Action: New Issued At: 2026-08-10 13:57:53 393 WWUS73 KDVN 101857 NPWDVN URGENT - WEATHER MESSAGE National Weather Service Quad Cities IA IL 157 PM CDT Mon Aug 10 2026 IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-110300- /O.NEW.KDVN.HT.Y.0007.260811T1700Z-260812T0100Z/ Jefferson-Henry IA-Des Moines-Van Buren-Lee-Henderson-Warren- Hancock-McDonough-Scotland-Clark- Including the cities of Keosauqua, Burlington, Monmouth, Kahoka, Oquawka, Macomb, Mount Pleasant, Carthage, Memphis, Fairfield, and Fort Madison 157 PM CDT Mon Aug 10 2026 ...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT TUESDAY... * WHAT...Heat index values of 100 to 105 expected. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas. 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. 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. && $$ Action: Continued Issued At: 2026-08-10 19:19:32 417 WWUS73 KDVN 110019 NPWDVN URGENT - WEATHER MESSAGE National Weather Service Quad Cities IA IL 719 PM CDT Mon Aug 10 2026 IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-110830- /O.CON.KDVN.HT.Y.0007.260811T1700Z-260812T0100Z/ Jefferson-Henry IA-Des Moines-Van Buren-Lee-Henderson-Warren- Hancock-McDonough-Scotland-Clark- Including the cities of Carthage, Memphis, Fairfield, Macomb, Kahoka, Mount Pleasant, Fort Madison, Burlington, Oquawka, Keosauqua, and Monmouth 719 PM CDT Mon Aug 10 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT TUESDAY... * WHAT...Heat index values of 100 to 105 expected. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ Action: Continued Issued At: 2026-08-11 03:13:46 856 WWUS73 KDVN 110813 NPWDVN URGENT - WEATHER MESSAGE National Weather Service Quad Cities IA IL 313 AM CDT Tue Aug 11 2026 IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-111830- /O.CON.KDVN.HT.Y.0007.260811T1700Z-260812T0100Z/ Jefferson-Henry IA-Des Moines-Van Buren-Lee-Henderson-Warren- Hancock-McDonough-Scotland-Clark- Including the cities of Mount Pleasant, Fort Madison, Keosauqua, Burlington, Oquawka, Carthage, Fairfield, Macomb, Monmouth, Memphis, and Kahoka 313 AM CDT Tue Aug 11 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING... * WHAT...Heat index values of 100 to 105 expected. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...From noon today to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas. Thunderstorms and storm outflow may also interrupt the high heat at times. 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. 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. && $$ 12 Action: Continued Issued At: 2026-08-11 11:29:16 330 WWUS73 KDVN 111629 NPWDVN URGENT - WEATHER MESSAGE National Weather Service Quad Cities IA IL 1129 AM CDT Tue Aug 11 2026 IAZ076>078-ILZ024-120030- /O.EXA.KDVN.HT.Y.0007.260811T1700Z-260812T0100Z/ Keokuk-Washington-Louisa-Mercer- Including the cities of Wapello, Aledo, Sigourney, and Washington 1129 AM CDT Tue Aug 11 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index values of 100 to 105 expected. * WHERE...In Illinois, Mercer County. In Iowa, Keokuk, Louisa, and Washington Counties. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas. Thunderstorms and storm outflow may also interrupt the high heat at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-120030- /O.CON.KDVN.HT.Y.0007.260811T1700Z-260812T0100Z/ Jefferson-Henry IA-Des Moines-Van Buren-Lee-Henderson-Warren- Hancock-McDonough-Scotland-Clark- Including the cities of Fairfield, Burlington, Fort Madison, Macomb, Mount Pleasant, Monmouth, Memphis, Keosauqua, Kahoka, Oquawka, and Carthage 1129 AM CDT Tue Aug 11 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index values up to 105 expected. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas. Thunderstorms and storm outflow may also interrupt the high heat at times. 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. 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. && $$ Action: Area Extended Issued At: 2026-08-11 11:29:16 330 WWUS73 KDVN 111629 NPWDVN URGENT - WEATHER MESSAGE National Weather Service Quad Cities IA IL 1129 AM CDT Tue Aug 11 2026 IAZ076>078-ILZ024-120030- /O.EXA.KDVN.HT.Y.0007.260811T1700Z-260812T0100Z/ Keokuk-Washington-Louisa-Mercer- Including the cities of Wapello, Aledo, Sigourney, and Washington 1129 AM CDT Tue Aug 11 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index values of 100 to 105 expected. * WHERE...In Illinois, Mercer County. In Iowa, Keokuk, Louisa, and Washington Counties. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas. Thunderstorms and storm outflow may also interrupt the high heat at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-120030- /O.CON.KDVN.HT.Y.0007.260811T1700Z-260812T0100Z/ Jefferson-Henry IA-Des Moines-Van Buren-Lee-Henderson-Warren- Hancock-McDonough-Scotland-Clark- Including the cities of Fairfield, Burlington, Fort Madison, Macomb, Mount Pleasant, Monmouth, Memphis, Keosauqua, Kahoka, Oquawka, and Carthage 1129 AM CDT Tue Aug 11 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index values up to 105 expected. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas. Thunderstorms and storm outflow may also interrupt the high heat at times. 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. 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. && $$ Action: Expired Issued At: 2026-08-11 19:46:27 275 WWUS73 KDVN 120046 NPWDVN URGENT - WEATHER MESSAGE National Weather Service Quad Cities IA IL 746 PM CDT Tue Aug 11 2026 IAZ076>078-087>089-098-099-ILZ024>026-034-035-MOZ009-010-120200- /O.EXP.KDVN.HT.Y.0007.000000T0000Z-260812T0100Z/ Keokuk-Washington-Louisa-Jefferson-Henry IA-Des Moines-Van Buren- Lee-Mercer-Henderson-Warren-Hancock-McDonough-Scotland-Clark- Including the cities of Washington, Wapello, Fairfield, Kahoka, Keosauqua, Carthage, Fort Madison, Mount Pleasant, Aledo, Monmouth, Oquawka, Sigourney, Burlington, Macomb, and Memphis 746 PM CDT Tue Aug 11 2026 ...HEAT ADVISORY WILL EXPIRE AT 8 PM CDT THIS EVENING... Heat index readings are expected to continue to decrease to below 100 degrees through the evening hours today. Thus, the heat threat has ended, and the Heat Advisory will be allowed to expire. $$ JTS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||