One product issued by NWS for: Joliet IL
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 1037 AM CDT Tue Jul 21 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-221545- 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- 1037 AM CDT Tue Jul 21 2026 /1137 AM EDT Tue Jul 21 2026/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Today and Tonight. Weather hazards expected... High Swim Risk Lake Michigan Beaches tonight. DISCUSSION... Waves will build on Lake Michigan this evening leading to a High Swim Risk. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Wednesday... High Swim Risk Lake Michigan Beaches. Saturday night and Sunday... Limited Thunderstorm Risk. DISCUSSION... A High Swim Risk will continue through early Thursday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$