


Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
967 FLUS43 KLOT 030830 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 330 AM CDT Thu Jul 3 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-040830- 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- 330 AM CDT Thu Jul 3 2025 /430 AM EDT Thu Jul 3 2025/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Today and Tonight. Weather hazards expected... Limited Thunderstorm Risk DISCUSSION... Isolated thunderstorms are possible this afternoon and evening, the strongest of which could produce locally gusty winds. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Friday and Saturday... Limited Excessive Heat Risk. Saturday Night... Limited Thunderstorm Risk. Sunday... Limited Thunderstorm Risk. Limited Flooding Risk. Tuesday and Wednesday... Limited Thunderstorm Risk. DISCUSSION... Heat indices of 95 to 100 degrees are expected Friday and Saturday. Shower and thunderstorm chances will increase Saturday night and Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is unlikely through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the southeast around 20 mph. $$ LMZ740>745-040830- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 330 AM CDT Thu Jul 3 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Today and Tonight. Weather hazards expected... Limited Thunderstorm Risk. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Saturday... Hazardous conditions for small craft are possible. Limited Thunderstorm Risk overnight. Sunday... Limited Thunderstorm Risk. Tuesday and Wednesday... Limited Thunderstorm Risk. $$ Carlaw Visit us at www.weather.gov/chicago