698 

FLUS43 KLOT 281910

HWOLOT



Hazardous Weather Outlook

National Weather Service Chicago/Romeoville IL

210 PM CDT Sun Jun 28 2026



ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-

010-011-019-291915-

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-

La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-

Northern Cook-Central Cook-Southern Cook-Northern Will-

Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-

210 PM CDT Sun Jun 28 2026 /310 PM EDT Sun Jun 28 2026/



This Hazardous Weather Outlook is for portions of north central

Illinois...northeast Illinois and northwest Indiana.



.DAY ONE...Tonight.



Weather hazards expected...



  Limited Thunderstorm Risk...with an associated:

     Level 1 of 5 Damaging Wind Risk...up to 60 mph.

     Level 1 of 5 Hail Risk...up to the size of a quarter.



DISCUSSION...



A cluster of thunderstorms may produce locally strong

wind gusts or small hail to to the size of a quarter,

primarily west of the Fox River Valley, this afternoon.



.DAYS TWO THROUGH SEVEN...Monday through Saturday.



Monday through Wednesday...

  Elevated Excessive Heat Risk.

Thursday...

  Elevated Excessive Heat Risk.

  Limited Thunderstorm Risk.

Friday and Saturday...

  Limited Thunderstorm Risk.



DISCUSSION...



Dangerous heat with afternoon heat index values over 100 degrees 

is expected tomorrow through at least Wednesday. Depending on

potential thunderstorm coverage late in the week, the dangerous

heat may persist into the weekend.



.SPOTTER INFORMATION STATEMENT...



  Spotter activation will not be necessary through tonight.



GENERAL STORM MOTION OF THE DAY:



  Moving toward the southeast at 35 mph.



$$



LMZ740>745-291915-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-

Burns Harbor to Michigan City IN-

210 PM CDT Sun Jun 28 2026



This Hazardous Weather Outlook is for portions of the Illinois

nearshore waters of Lake Michigan and the Indiana nearshore

waters of Lake Michigan.



.DAY ONE...Tonight.



Weather hazards expected...



  Limited Thunderstorm Risk  this evening.



.DAYS TWO THROUGH SEVEN...Monday through Saturday.



Monday and Tuesday...

  Hazardous conditions for small craft are likely.

Thursday through Saturday...

  Limited Thunderstorm Risk.



$$



DK



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