FLUS43 KLOT 261625

HWOLOT



Hazardous Weather Outlook

National Weather Service Chicago/Romeoville IL

1125 AM CDT Thu Jun 26 2025



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

010-011-019-271800-

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-

1125 AM CDT Thu Jun 26 2025 /1225 PM EDT Thu Jun 26 2025/



This Hazardous Weather Outlook is for portions of north central

Illinois...northeast Illinois and northwest Indiana.



.DAY ONE...This Afternoon and Tonight.



Weather hazards expected...



  Limited Thunderstorm Risk...with an associated:

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

  Limited Flooding Risk.

  Limited Excessive Heat Risk.



DISCUSSION...



Widely scattered thunderstorms are expected to develop this 

afternoon and continue into the early evening. The strongest 

storms will be capable of producing gusty to locally damaging wind

gusts as well as heavy downpours.



Hot and humid conditions are expected today with peak afternoon 

heat indices of 100 to 105 degrees.



.DAYS TWO THROUGH SEVEN...Friday through Wednesday.



Friday and Saturday...

  Limited Thunderstorm Risk.

Sunday...

  Limited Thunderstorm Risk.

  Limited Excessive Heat Risk.

Monday...

 Limited Thunderstorm Risk.



DISCUSSION...



Periodic thunderstorm chances will continue through early next 

week.



Heat indices may exceed 100 degrees again on Sunday.



.SPOTTER INFORMATION STATEMENT...



  Spotters may be needed this afternoon and evening.



GENERAL STORM MOTION OF THE DAY:



  Moving toward the northeast at 20 to 25 mph.



$$



LMZ740>745-271800-

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-

1125 AM CDT Thu Jun 26 2025



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...This Afternoon and Tonight.



Weather hazards expected...



  Limited Thunderstorm Risk...with an associated:

     Level 1 of 5 Thunderstorm Wind Gust Risk...up to 50 knots.



.DAYS TWO THROUGH SEVEN...Friday through Wednesday.



Friday...

  Limited Thunderstorm Risk.

Sunday and Monday...

  Limited Thunderstorm Risk.



$$



- Izzi



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