Hazard Report Provided By forecast.weather.gov

Coastal Hazard Message
National Weather Service Chicago IL
343 PM CDT Sat Aug 1 2026

ILZ006-103-104-020445-
/O.CON.KLOT.BH.S.0010.000000T0000Z-260803T1400Z/
Lake IL-Northern Cook-Central Cook-
343 PM CDT Sat Aug 1 2026

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY
MORNING...

* WHAT...High wave action and dangerous currents expected at Lake
  Michigan beaches. Waves 6 to 9 ft expected.

* WHERE...Lake IL, Northern Cook and Central Cook Counties.

* WHEN...Through Monday morning.

* IMPACTS...Swimming conditions will be life threatening,
  especially for inexperienced swimmers. For information on swim
  advisories or bans at Chicago beaches: www. cpdbeaches. com.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.

&&

$$

Flood Statement
National Weather Service Chicago IL
744 PM CDT Sat Aug 1 2026

ILC031-197-INC089-020445-
/O.CON.KLOT.FA.W.0016.000000T0000Z-260802T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cook IL-Will IL-Lake IN-
744 PM CDT Sat Aug 1 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT THIS EVENING...

* WHAT...Flooding caused by earlier excessive rainfall continues.

* WHERE...Southeastern Cook County in northeastern Illinois...
  Central Will County in northeastern Illinois...
  Northwestern Lake IN County in northwestern Indiana...

* WHEN...Until 1145 PM CDT.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
  may occur in poor drainage and urban areas. Underpasses may be
  flooded. Roads and streets may be flooded.

* ADDITIONAL DETAILS...
  - At 739 PM CDT, Doppler radar and automated rain gauges indicated
    that very heavy rainfall occurred across the warned area earlier.
    Up to 3 inches of rain fell in the past 3 to 6 hours.
  - Some locations that will experience flooding include...
    Hammond, Gary, Tinley Park, Calumet City, Chicago Heights, East
    Chicago, Lansing, Oak Forest, Harvey, Highland, Munster, Dolton,
    Park Forest, Homewood, Matteson, Mokena, Frankfort, and South
    Holland.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Warning means flooding is imminent or may already be
occurring. Persons along rivers, creeks, and other waterways should
take immediate precautions to protect life and property.

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4156 8782 4169 8740 4167 8738 4166 8739
      4166 8740 4165 8738 4164 8737 4164 8729
      4162 8730 4155 8749 4147 8765 4147 8774
      4143 8782 4143 8790 4147 8790 4155 8785


$$

Ogorek

Flood Advisory
National Weather Service Chicago IL
700 PM CDT Sat Aug 1 2026

ILC031-043-197-INC089-020600-
/O.NEW.KLOT.FA.Y.0079.260802T0000Z-260802T0600Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cook IL-DuPage IL-Will IL-Lake IN-
700 PM CDT Sat Aug 1 2026

...FLOOD ADVISORY IN EFFECT UNTIL 1 AM CDT SUNDAY...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Southeastern Cook County in northeastern Illinois...
  Southeastern DuPage County in northeastern Illinois...
  Will County in northeastern Illinois...
  Northern Lake IN County in northwestern Indiana...

* WHEN...Until 100 AM CDT.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
  may occur in poor drainage and urban areas. Underpasses may be
  flooded. Roads and streets may be flooded.

* ADDITIONAL DETAILS...
  - At 656 PM CDT, Doppler radar and automated rain gauges indicated
    light to moderate rain occurring in areas where heavy rainfall
    occurred earlier. Minor flooding is ongoing or expected to begin
    shortly in the advisory area.
  - Some locations that will experience flooding include...
    Chicago, Joliet, Hammond, Gary, Bolingbrook, Orland Park, Tinley
    Park, Oak Lawn, Romeoville, Plainfield, Calumet City,
    Merrillville, Woodridge, Chicago Heights, Roseland, Chicago Lawn,
    Englewood, and South Shore.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Advisory means minor flooding along waterways and other poor
drainage areas is imminent or may already be occurring. Persons in
the advisory area should use caution and avoid flood waters.

&&

LAT...LON 4161 8826 4175 8804 4177 8755 4175 8753
      4172 8752 4172 8750 4169 8746 4169 8741
      4168 8738 4166 8740 4164 8737 4164 8722
      4159 8722 4136 8753 4135 8825


$$

Ogorek

Flood Warning
National Weather Service Chicago IL
450 PM CDT Sat Aug 1 2026

...The National Weather Service in Chicago has issued a Flood Warning
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 South Holland, 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 Sunday morning at 700 AM CDT.

&&

ILC031-INC089-021200-
/O.NEW.KLOT.FL.W.0066.260801T2230Z-260802T1200Z/
/LCMI3.1.ER.260801T2230Z.260802T0000Z.260802T0600Z.NO/
450 PM CDT Sat Aug 1 2026

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

* WHAT...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 Sunday morning.

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

* ADDITIONAL DETAILS...
  - At 4:00 PM CDT Saturday the stage was 11.5 feet.
  - Forecast...The river is expected to rise above flood stage late
    this afternoon to a crest of 12.5 feet this evening. It will then
    fall below flood stage just after midnight tonight.
  - Flood stage is 12.0 feet.
  - http://www.weather.gov/safety/flood

&&

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


$$

Yack

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
324 PM CDT Sat Aug 1 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-022030-
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-
324 PM CDT Sat Aug 1 2026 /424 PM EDT Sat Aug 1 2026/

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

.DAY ONE...Tonight.

Weather hazards expected...

  Elevated Flooding Risk.
  Limited Thunderstorm Risk.
  High Swim Risk Lake Michigan Beaches.

DISCUSSION...

Periods of rain, heavy at times, will continue through this
evening and may lead to localized flooding. A few thunderstorms
are also possible but severe weather is not expected.

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

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

Sunday into Monday Morning...
  High Swim Risk Lake Michigan Beaches.
Wednesday through Friday...
  Limited Thunderstorm Risk.

DISCUSSION...

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

.SPOTTER INFORMATION STATEMENT...

  Spotters activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the west-northwest around 10 to 20 mph.

$$

Flood Warning
National Weather Service Chicago IL
244 PM CDT Sat Aug 1 2026

...The National Weather Service in Chicago has issued a Flood Warning
for the following rivers in Illinois...

  Thorn Creek at Thornton affecting Cook County.

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 Sunday morning at 900 AM CDT.

&&

ILC031-021400-
/O.NEW.KLOT.FL.W.0065.260801T2036Z-260802T1400Z/
/THNI2.1.ER.260801T2036Z.260802T0000Z.260802T0800Z.NO/
244 PM CDT Sat Aug 1 2026

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

* WHAT...Minor flooding is forecast.

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

* WHEN...Until Sunday morning.

* IMPACTS...At 9.0 feet, Water begins to be diverted through Thorn
  Creek Diversion Tunnel.

* ADDITIONAL DETAILS...
  - At 2:15 PM CDT Saturday the stage was 8.6 feet.
  - Forecast...The river is expected to rise above flood stage late
    this afternoon to a crest of 10.0 feet this evening. It will then
    fall below flood stage late tonight.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

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


$$

Yack

Hazard Report Provided By forecast.weather.gov