711 

WWUS73 KDVN 291551

NPWDVN



URGENT - WEATHER MESSAGE

National Weather Service Quad Cities IA IL

1051 AM CDT Mon Jun 29 2026



IAZ063>065-067-068-076>078-087>089-098-099-ILZ015-024>026-034-035-

MOZ009-010-300000-

/O.CON.KDVN.XH.W.0001.000000T0000Z-260702T0300Z/

Iowa-Johnson-Cedar-Muscatine-Scott-Keokuk-Washington-Louisa-

Jefferson-Henry IA-Des Moines-Van Buren-Lee-Rock Island-Mercer-

Henderson-Warren-Hancock-McDonough-Scotland-Clark-

Including the cities of Burlington, Keosauqua, Moline, Fort

Madison, Tipton, Davenport, Kahoka, Mount Pleasant, Monmouth,

Carthage, Memphis, Iowa City, Bettendorf, Rock Island, Wapello,

Fairfield, Oquawka, Sigourney, Aledo, Washington, Macomb,

Marengo, and Muscatine

1051 AM CDT Mon Jun 29 2026



...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT 

WEDNESDAY...



* WHAT...Dangerously hot and humid conditions with multiple days of 

  heat index values of 100 to 110 expected, along with nighttime 

  lows not falling below the mid to upper 70s.



* WHERE...Portions of northwest and west central Illinois, east 

  central and southeast Iowa, and northeast Missouri.



* WHEN...Until 10 PM CDT Wednesday.



* IMPACTS...Heat related illnesses increase significantly during 

  extreme heat and high humidity events.



* ADDITIONAL DETAILS...The extreme heat may persist through late 

  week, but thunderstorms and associated clouds may interrupt the 

  heat at times Thursday and Friday.



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.



&&



$$



IAZ040>042-051>054-066-ILZ001-002-007-009-016>018-300000-

/O.CON.KDVN.XH.W.0001.260629T1700Z-260702T0300Z/

Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Clinton-Jo

Daviess-Stephenson-Carroll-Whiteside-Henry IL-Bureau-Putnam-

Including the cities of Geneseo, Sterling, Dubuque, Princeton,

Hennepin, Independence, Clinton, Galena, Maquoketa, Freeport,

Manchester, Anamosa, Mount Carroll, Vinton, and Cedar Rapids

1051 AM CDT Mon Jun 29 2026



...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT 

WEDNESDAY...



* WHAT...Dangerously hot and humid conditions with multiple days of 

  heat index values of 100 to 110 expected, along with nighttime 

  lows not falling below the mid to upper 70s.



* WHERE...Portions of north central and northwest Illinois and east 

  central and northeast Iowa.



* WHEN...Until 10 PM CDT Wednesday.



* IMPACTS...Heat related illnesses increase significantly during 

  extreme heat and high humidity events.



* ADDITIONAL DETAILS...The extreme heat may persist through late 

  week, but thunderstorms and associated clouds may interrupt the 

  heat at times Thursday and Friday.



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.



&&



$$



MJB