


Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
728 FLUS43 KLOT 042331 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 631 PM CDT Fri Jul 4 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-052345- 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- 631 PM CDT Fri Jul 4 2025 /731 PM EDT Fri Jul 4 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...Saturday through Thursday. Saturday... Limited Thunderstorm Risk...with an associated: Level 1 of 5 Severe Thunderstorm Risk. Sunday... Limited Flooding Risk. Limited Thunderstorm Risk. Tuesday night through Thursday... Limited Thunderstorm Risk. DISCUSSION... Scattered thunderstorms are expected to slowly track eastward across northern Illinois late Saturday afternoon and night. Some of these storms could produce locally damaging winds and heavy rain. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$ LMZ740>745-052345- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 631 PM CDT Fri Jul 4 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Saturday... Hazardous conditions for small craft are likely. Limited Thunderstorm Risk. Sunday... Limited Thunderstorm Risk. Tuesday through Thursday... Limited Thunderstorm Risk. $$ - Izzi Visit us at www.weather.gov/chicago