Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
326 PM CDT Tue Aug 19 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-202030-
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-
326 PM CDT Tue Aug 19 2025 /426 PM EDT Tue Aug 19 2025/

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

.DAY ONE...Tonight.

Weather hazards expected...

  Limited Fog Risk.
  High Swim Risk Lake Michigan Beaches.

DISCUSSION...

Patchy fog may locally reduce visibilities to under 1 mile at
times tonight, mainly away from the lake.

Dangerous swimming conditions will develop at area beaches
tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
  High Swim Risk Lake Michigan Beaches.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$

Flood Statement
National Weather Service Chicago IL
735 PM CDT Tue Aug 19 2025

...The Flood Warning is extended for the following rivers in
Illinois...

  East Branch Du Page River at Bolingbrook affecting Will and
  DuPage Counties.

  Du Page River at Shorewood affecting Will County.

For the East Branch Du Page River...including Bolingbrook...Minor
flooding is forecast.

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 Wednesday morning.

&&

ILC043-197-201300-
/O.EXT.KLOT.FL.W.0005.000000T0000Z-250820T1251Z/
/BOLI2.1.ER.250819T1522Z.250819T2315Z.250820T0651Z.NO/
735 PM CDT Tue Aug 19 2025

...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW MORNING...

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

* WHERE...East Branch Du Page River from Maple Avenue in Lisle
  downstream to confluence with West Branch DuPage River, including
  the Bolingbrook gauge.

* WHEN...Until tomorrow morning.

* IMPACTS...At 20.0 feet, DuPage River Greenway Trail is threatened
  east of the river near Royce Road in Bolingbrook. Trails
  threatened at Green Valley Forest Preserve near Woodridge.

* ADDITIONAL DETAILS...
  - At 6:40 PM CDT Tuesday the stage was 20.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 6:40 PM CDT Tuesday was 20.5 feet.
  - Forecast...The river is expected to fall below flood stage
    just after midnight tonight and continue falling to 15.2 feet
    Tuesday, August 26.
  - Flood stage is 20.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4180 8809 4179 8805 4170 8806 4169 8814
      4172 8817 4174 8810


$$

Hazard Report Provided By forecast.weather.gov