Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
233 AM CDT Tue Jul 21 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-220745-
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-
233 AM CDT Tue Jul 21 2026 /333 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...

  Limited Thunderstorm Risk ending by daybreak.
  High Swim Risk Lake Michigan Beaches this evening.

DISCUSSION...

A thunderstorm may develop prior to daybreak and produce damaging
hail. Most areas will be dry.

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 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.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the east at around 30 mph.

$$

Hazard Report Provided By forecast.weather.gov