Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
328 AM CDT Sat Jun 13 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-140830-
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-
328 AM CDT Sat Jun 13 2026 /428 AM EDT Sat Jun 13 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.
     Level 1 of 5 Large Hail Risk...up to quarter size.
  Limited Flooding Risk.

DISCUSSION...

Scattered thunderstorms are possible late this afternoon into
tonight. A few of the thunderstorms may become severe, mainly
during this evening.

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

Sunday...
  High Swim Risk Indiana Lake Michigan Beaches.
Tuesday...
  Limited Thunderstorm Risk.
Wednesday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk...with an associated:
     Level 2 of 5 Severe Thunderstorm Risk.
Thursday and Friday...
  Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 40 mph.

$$

Flood Statement
National Weather Service Chicago IL
945 PM CDT Fri Jun 12 2026

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

  Little Calumet River at Munster (Hohman Avenue) affecting Cook
  and Lake IN Counties.

For the Little Calumet River...including Munster (Hohman Avenue)...
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 Saturday afternoon.

&&

ILC031-INC089-132045-
/O.EXT.KLOT.FL.W.0037.000000T0000Z-260614T0916Z/
/LCMI3.1.ER.260612T0930Z.260613T1200Z.260614T0316Z.NO/
945 PM CDT Fri Jun 12 2026

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY SUNDAY MORNING...

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

* WHERE...Little Calumet River from IN-912 in Hammond downstream to
  confluence with Thorn Creek in South Holland, including the
  Munster (Hohman Avenue) gauge.

* WHEN...Until early Sunday morning.

* IMPACTS...At 12.5 feet, Most areas outside of the levee-protected
  area are inundated in Hammond and Munster.

* ADDITIONAL DETAILS...
  - At 9:00 PM CDT Friday the stage was 12.9 feet.
  - Forecast...The river is expected to rise to a crest of 13.4
    feet tomorrow morning. It will then fall below flood stage
    late tomorrow evening.
  - Flood stage is 12.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4163 8756 4159 8740 4153 8743 4157 8758


$$

Ratzer

Hazard Report Provided By forecast.weather.gov