Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
938 PM CDT Sun Aug 2 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-040245-
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-
938 PM CDT Sun Aug 2 2026 /1038 PM EDT Sun Aug 2 2026/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

  High Swim Risk Lake Michigan Beaches.

DISCUSSION...

Dangerous swimming conditions will continue at Lake Michigan
beaches due to high waves and rip currents.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday Morning...
  High Swim Risk Lake Michigan Beaches.
Wednesday...
  Elevated Flooding Risk.
  Limited Thunderstorm Risk.
Thursday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.
Friday and Saturday...
  Limited Thunderstorm Risk.

DISCUSSION...

Dangerous swimming conditions will continue at Indiana Lake
Michigan beaches into Monday morning.

Scattered thunderstorms are possible Wednesday into Thursday.
These storms may result in locally heavy rainfall and localized
flooding.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$

Flood Statement
National Weather Service Chicago IL
830 PM CDT Sun Aug 2 2026

...The Flood Warning continues for the following rivers in
Illinois...

  Thorn Creek at Thornton affecting Cook County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.

These forecasts are based on observed precipitation as well as
forecast precipitation 24 hours into the future. Changes to the
rainfall forecast, or any additional rainfall after 24 hours, may
cause changes to these river forecasts.

Additional information is available at www.weather.gov.

The next statement will be issued by Monday afternoon.

&&

ILC031-031930-
/O.EXT.KLOT.FL.W.0065.000000T0000Z-260803T2100Z/
/THNI2.1.ER.260801T2013Z.260802T1130Z.260803T1708Z.NO/
830 PM CDT Sun Aug 2 2026

...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Thorn Creek from near Glenwood downstream to confluence
  with Little Calumet River, including the Thornton gauge.

* WHEN...Until Monday afternoon.

* IMPACTS...At 11.0 feet, 187th Street threatened in Glenwood.

* ADDITIONAL DETAILS...
  - At 8:15 PM CDT Sunday, the stage was 11.2 feet.
  - Forecast...The river has crested and is expected to fall below
    flood stage early tomorrow afternoon.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4161 8760 4158 8754 4151 8760 4154 8767


$$

Ogorek

Hazard Report Provided By forecast.weather.gov