Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
251 AM CDT Sat Apr 18 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-190800-
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-
251 AM CDT Sat Apr 18 2026 /351 AM EDT Sat Apr 18 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...

  Elevated Frost/Freeze Risk tonight, mainly west of Fox Valley.

DISCUSSION...

Locally sub-freezing temperatures are possible tonight, primarily
west of the Fox Valley.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
  Significant Frost and Freeze Risk, away from Chicago.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$

Flood Watch
National Weather Service Chicago IL
446 AM CDT Sat Apr 18 2026

...The Flood Watch continues for the following rivers in Indiana...

  Kankakee River at Shelby affecting Lake IN and Newton Counties.

  Kankakee River at Dunns Bridge affecting Jasper and Porter
  Counties.

For the Kankakee River...including Shelby...flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means water levels above flood stage are possible, but
not yet certain, based upon the latest forecasts. Persons along
rivers and streams in the watch area should monitor the latest
forecasts and be prepared to take action should flooding develop.

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 this evening.

&&

INZ002-011-190400-
/O.CON.KLOT.FL.A.0024.260420T0600Z-260424T0000Z/
/DBRI3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
446 AM CDT Sat Apr 18 2026

...FLOOD WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT TO THURSDAY
EVENING...

* WHAT...Flooding is possible.

* WHERE...Kankakee River from US-421 south of La Crosse downstream
  to IN-49 south of Kouts, including the Dunns Bridge gauge.

* WHEN...From late Sunday night to Thursday evening.

* IMPACTS...At 10.0 feet, Low-lying agricultural land is inundated
  near the river.

* ADDITIONAL DETAILS...
  - At 4:00 AM CDT Saturday the stage was 8.9 feet.
  - Forecast...Flood stage may be reached on Monday.
  - Flood stage is 10.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4128 8728 4132 8713 4129 8689 4121 8687
      4118 8697 4117 8725

$$

Doom

Hazard Report Provided By forecast.weather.gov