Hazard Report Provided By forecast.weather.gov

Coastal Hazard Message
National Weather Service Chicago IL
332 AM CDT Fri Jul 31 2026

ILZ006-103-104-311645-
/O.NEW.KLOT.BH.S.0010.260801T0800Z-260803T1400Z/
Lake IL-Northern Cook-Central Cook-
332 AM CDT Fri Jul 31 2026

...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING...

* WHAT...High wave action and dangerous currents expected at Lake
  Michigan beaches. Waves 6 to 9 feet expected.

* WHERE...Lake IL, Northern Cook and Central Cook Counties.

* WHEN...From late tonight through Monday morning.

* IMPACTS...Swimming conditions will be life threatening,
  especially for inexperienced swimmers. For information on swim
  advisories or bans at Chicago beaches: www. cpdbeaches. com.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.

&&

$$

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
341 AM CDT Fri Jul 31 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-010845-
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-
341 AM CDT Fri Jul 31 2026 /441 AM EDT Fri Jul 31 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...with an associated:
     Level 1 of 5 Damaging Wind Risk...up to 60 mph.
  Elevated Flooding Risk.
  High Swim Risk Illinois Lake Michigan Beaches late.

DISCUSSION...

There will be a chance of thunderstorms this afternoon and
tonight. A few of these storms may approach severe limits
southwest of a Rochelle to Kankakee line. Heavy rain may lead to
localized flooding.

High waves will create dangerous swimming conditions at Illinois
Lake Michigan beaches late tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
  Elevated Flooding Risk.
  Limited Thunderstorm Risk.
  High Swim Risk Lake Michigan Beaches.
Sunday...
  High Swim Risk Lake Michigan Beaches.
Wednesday and Thursday...
  Limited Thunderstorm Risk.

DISCUSSION...

There will be a chance of thunderstorms Saturday. Severe
thunderstorms are not expected.

High waves will create dangerous swimming conditions at Lake
Michigan beaches through Monday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 30 to 40 mph.

$$

Hazard Report Provided By forecast.weather.gov