Watches, Warnings & Advisories



2 products issued by NWS for: Chicago Midway Airport IL

Hazardous Weather Outlook

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.

$$



Beach Hazards Statement

Coastal Hazard Message
National Weather Service Chicago IL
233 AM CDT Tue Jul 21 2026

ILZ006-103-104-211545-
/O.NEW.KLOT.BH.S.0008.260721T2100Z-260723T0300Z/
Lake IL-Northern Cook-Central Cook-
233 AM CDT Tue Jul 21 2026

...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS AFTERNOON THROUGH
WEDNESDAY EVENING...

* WHAT...High wave action and dangerous currents at Lake Michigan
  beaches expected.

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

* WHEN...From this afternoon through Wednesday evening.

* 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.

&&

$$