Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1128 AM CDT Sat Jul 4 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-051630-
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-
1128 AM CDT Sat Jul 4 2026 /1228 PM EDT Sat Jul 4 2026/

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

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

  Elevated Thunderstorm Risk...with an associated:
     Level 1 of 5 Damaging Wind Risk...up to 65 mph.
  Elevated Flooding Risk.

DISCUSSION...

Thunderstorms are expected again this afternoon. The strongest may
produce damaging winds especially along and south of Interstate
88. Meanwhile, torrential downpours may lead to flash flooding,
particularly around the western and southern Chicago metropolitan
area.

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

Sunday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.
Monday through Friday...
  Limited Thunderstorm Risk at times.

.SPOTTER INFORMATION STATEMENT...

  Spotters may be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the east at around 25 to 30 mph.

$$

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 455
NWS STORM PREDICTION CENTER NORMAN OK
1235 PM CDT SAT JUL 4 2026

SEVERE THUNDERSTORM WATCH 455 IS IN EFFECT UNTIL 700 PM CDT
FOR THE FOLLOWING LOCATIONS

ILC011-019-029-031-039-041-043-045-053-063-075-089-091-093-099-
105-107-113-115-123-139-143-147-155-175-179-183-197-203-
050000-
/O.NEW.KWNS.SV.A.0455.260704T1735Z-260705T0000Z/

IL
.    ILLINOIS COUNTIES INCLUDED ARE

BUREAU               CHAMPAIGN           COLES
COOK                 DE WITT             DOUGLAS
DUPAGE               EDGAR               FORD
GRUNDY               IROQUOIS            KANE
KANKAKEE             KENDALL             LA SALLE
LIVINGSTON           LOGAN               MACON
MARSHALL             MCLEAN              MOULTRIE
PEORIA               PIATT               PUTNAM
STARK                TAZEWELL            VERMILION
WILL                 WOODFORD
$$

Flood Statement
National Weather Service Chicago IL
1137 AM CDT Sat Jul 4 2026

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

  Thorn Creek at Thornton affecting Cook County.

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 late tonight.

&&

ILC031-051045-
/O.EXT.KLOT.FL.W.0050.000000T0000Z-260706T1200Z/
/THNI2.1.ER.260704T0732Z.260704T1615Z.260705T2300Z.NO/
1137 AM CDT Sat Jul 4 2026

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

* WHAT...Minor flooding is occurring and forecasted to continue.

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

* WHEN...Until Monday morning.

* IMPACTS...At 13.0 feet, Parking lots threatened at Glenwood
  Academy.

* ADDITIONAL DETAILS...
  - At 11:15 AM CDT Saturday the stage was 12.5 feet.
  - Forecast...The river appears to be cresting and is forecasted
    to fall below flood stage late Sunday. However, additional
    rainfall today may cause river levels to rise again.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

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


$$

Borchardt

Flood Watch
National Weather Service Chicago IL
939 AM CDT Sat Jul 4 2026

ILZ010>013-019>021-103>108-INZ001-042245-
/O.NEW.KLOT.FA.A.0009.260704T1800Z-260705T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lee-De Kalb-Kane-DuPage-La Salle-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern
Will-Lake IN-
Including the cities of Cicero, Plano, Minooka, Park Forest, La
Salle, Oswego, Beecher, Streator, Lombard, Yorkville, Mendota,
Wheaton, Des Plaines, Ottawa, Northbrook, Chicago, La Grange,
Channahon, Orland Park, Coal City, Hammond, Crete, Palatine,
Naperville, Manhattan, Elgin, Mokena, Sycamore, Dixon, Lemont,
Merrillville, Bolingbrook, Downers Grove, Wilmington, Oak Lawn,
Gary, DeKalb, Oak Forest, Aurora, Calumet City, Carol Stream, Oak
Park, Evanston, Joliet, Schaumburg, Plainfield, Peotone,
Marseilles, and Morris
939 AM CDT Sat Jul 4 2026

...FLOOD WATCH IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH THIS
EVENING...

* WHAT...Flooding caused by torrential downpours is possible.

* WHERE...Portions of Illinois, including the following areas,
  Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane,
  Kendall, La Salle, Lee, Northern Cook, Northern Will, Southern
  Cook and Southern Will and northwest Indiana, including the
  following area, Lake IN.

* WHEN...From 1 PM CDT this afternoon through this evening.

* IMPACTS...Flooding of streets, underpasses, basements, and
  vulnerable structures is possible. Storm drains and ditches may be
  clogged with debris, increasing the risk of flooding. This is
  especially true in the Chicago metropolitan area.

* ADDITIONAL DETAILS...
  - Parts of the Flood Watch area have picked up 3 to 6 inches of
    rain in the past 48 hours. As a result, many rivers and
    creeks in the watch area are already at bankfull and soils
    are saturated. Additional torrential downpours today may lead
    to flooding, some of which could be significant particularly
    in the Chicago metropolitan area.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means flooding is possible, but not yet certain, based
upon the latest forecasts. Persons with interests along area rivers,
creeks, and other waterways should monitor the latest forecasts and
be prepared to take action should flooding develop.

Monitor the latest forecasts and be prepared to action should
flooding develop.

&&

$$

Borchardt

Hazard Report Provided By forecast.weather.gov