Hazard Report Provided By forecast.weather.gov
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 326 AM CDT Mon Jul 6 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-070830- 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 AM CDT Mon Jul 6 2026 /426 AM EDT Mon Jul 6 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 this afternoon. DISCUSSION... Isolated to widely scattered showers and thunderstorms are expected near and south of a Paxton, IL to Rensselaer, IN line this afternoon. No severe weather is expected. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Wednesday Night through Saturday... Limited Thunderstorm Risk. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the southwest around 25 to 30 mph. $$
Flood Statement
National Weather Service Chicago IL
745 PM CDT Sun Jul 5 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Thorn Creek at Thornton affecting Cook County.
...The Flood Warning continues for the following rivers in Indiana...
Illinois...
Little Calumet River at Munster (Hohman Avenue) affecting Cook
and Lake IN Counties.
For the Thorn Creek...including Thornton...Minor flooding is
forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based on observed precipitation as well as
forecast precipitation 24 hours into the future. Changes to the
rainfall forecast, or any additional rainfall after 24 hours, may
cause changes to these river forecasts.
Additional information is available at www.weather.gov.
The next statement will be issued by Monday afternoon.
&&
ILC031-061845-
/O.EXT.KLOT.FL.W.0050.000000T0000Z-260707T0300Z/
/THNI2.1.ER.260704T0732Z.260704T1845Z.260707T0032Z.NO/
745 PM CDT Sun Jul 5 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE TOMORROW EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Thorn Creek from Near Glenwood downstream to confluence
with Little Calumet River, including the Thornton gauge.
* WHEN...Until late tomorrow evening.
* IMPACTS...At 13.0 feet, Parking lots threatened at Glenwood
Academy.
* ADDITIONAL DETAILS...
- At 7:15 PM CDT Sunday the stage was 12.6 feet.
- Recent Activity...The river appears to have crested and has
started a gradual fall.
- Forecast...The river is expected to continue a gradual fall.
- Flood stage is 9.0 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4161 8760 4158 8754 4151 8760 4154 8767
$$
Flood Statement
National Weather Service Chicago IL
745 PM CDT Sun Jul 5 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Thorn Creek at Thornton affecting Cook County.
...The Flood Warning continues for the following rivers in Indiana...
Illinois...
Little Calumet River at Munster (Hohman Avenue) affecting Cook
and Lake IN Counties.
For the Thorn Creek...including Thornton...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 Monday afternoon.
&&
ILC031-INC089-061800-
/O.CON.KLOT.FL.W.0055.000000T0000Z-260706T1800Z/
/LCMI3.1.ER.260704T2333Z.260705T0145Z.260706T1200Z.NO/
745 PM CDT Sun Jul 5 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY TOMORROW AFTERNOON...
* 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 tomorrow afternoon.
* IMPACTS...At 12.5 feet, Most areas outside of the levee-protected
area are inundated in Hammond and Munster.
* ADDITIONAL DETAILS...
- At 7:00 PM CDT Sunday the stage was 12.5 feet.
- Recent Activity...The river has maintained a near steady
state.
- Forecast...The river is expected to crest at 12.5 feet and
will begin a gradual fall through the overnight.
- Flood stage is 12.0 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4163 8756 4159 8740 4153 8743 4157 8758
$$
DK
Hazard Report Provided By forecast.weather.gov