


Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
275 FLUS43 KLOT 030217 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 917 PM CDT Wed Jul 2 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-040230- 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- 917 PM CDT Wed Jul 2 2025 /1017 PM EDT Wed Jul 2 2025/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thursday... Limited Thunderstorm Risk...with an associated: Level 1 of 5 Severe Thunderstorm Risk. Friday and Saturday... Limited Excessive Heat Risk. Saturday Evening through Monday... Limited Thunderstorm Risk. DISCUSSION... Isolated gusty thunderstorms are possible Thursday afternoon and evening. Increasing heat and humidity is expected for the holiday weekend with periodic thunderstorm chances returning late Saturday into early next week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$ LMZ740>745-040230- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 917 PM CDT Wed Jul 2 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thursday... Limited Thunderstorm Risk...with an associated: Level 1 of 5 Severe Thunderstorm Risk. Saturday and Sunday... Limited Thunderstorm Risk. $$ - Izzi Visit us at www.weather.gov/chicago