Cook County, IL
To view the watches and warnings information that we have available you will need to select your city, county, or state first.
Enter City, State or Zip Code to Select a Location from the List
Click to view enlarged map

The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: Cook County, IL
« View county list

Flood Advisory
831 PM CST Mon Feb 19 2018

The National Weather Service in Chicago has issued a
* Flood Advisory for
The Little Calumet River at South Holland.
* until Wednesday morning.
* At 730 PM Monday the stage was 9.8 feet.
* Action stage is 15.0 feet.
* Flood stage is 16.5 feet.
* Forecast...The river will rise to near 15.5 feet by early Wednesday
* Impact...At 15.0 feet...Water enters Veterans Park.


LAT...LON 4158 8760 4161 8767 4167 8762 4164 8755


Flood Advisory
846 PM CST Mon Feb 19 2018

The Flood Advisory continues for
The North Branch Chicago River at Chicago Albany Ave
* until Wednesday evening.
* At 800 PM Monday the stage was 2.1 feet.
* Action stage is 5.0 feet.
* Flood stage is 7.0 feet.
* Forecast...The river will rise to near 5.9 feet by early Wednesday


LAT...LON 4198 8767 4194 8765 4189 8771 4194 8774
4196 8781 4203 8775


Flood Warning
833 PM CST Mon Feb 19 2018

The National Weather Service in Chicago has issued a

* Flood Warning for
The Thorn Creek at Thornton.
* from Tuesday afternoon to Thursday morning.
* At 730 PM Monday the stage was 6.1 feet.
* Flood stage is 10.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by Tuesday afternoon and continue
to rise to near 11.1 feet by Wednesday morning.The river will fall
below flood stage by early Thursday morning.


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


Flood Watch
DuPage-Cook-La Salle-Kendall-Grundy-Will-Kankakee-Livingston-
Iroquois-Ford-Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Wheaton, Chicago, Ottawa, Oswego, Morris,
Joliet, Kankakee, Pontiac, Watseka, Paxton, Gary, Valparaiso,
Morocco, Rensselaer, and Fowler
345 PM CST Mon Feb 19 2018 /445 PM EST Mon Feb 19 2018/


The Flood Watch continues for

* Portions of Illinois and Indiana, including the following
areas, in Illinois, Cook, DuPage, Ford, Grundy, Iroquois,
Kankakee, Kendall, La Salle, Livingston, and Will. In Indiana,
Benton, Jasper, Lake IN, Newton, and Porter.

* Through late Tuesday night.

* Multiple rounds of showers and some thunderstorms are expected
tonight, Tuesday, and into portions of Tuesday night. Widespread
rainfall amounts of one and a half to four inches are expected
with isolated higher totals possible.

* The ground remains frozen, therefore much of the rain will
result in rapid runoff. In addition, some snow remains over
areas north of I-80 and melting of this snow will compound
runoff from heavy rainfall. Ice jam break up is also a concern.
Expect rises on area rivers and streams that may result in


A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.



National Weather Service

Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."
Weather Alerts by Type
Avalanche Warning
Avalanche Watch
Blizzard Warning
Coastal Flood Advisory
Coastal Flood Warning
Dense Fog Advisory
Flash Flood Watch
Flood Advisory
Flood Warning
Flood Watch
Freeze Warning
Freeze Watch
Frost Advisory
Hard Freeze Warning
High Surf Advisory
High Wind Warning
Hydrologic Statement
Lake Wind Advisory
Rip Current Statement
Special Weather Statement
Wind Advisory
Wind Chill Advisory
Wind Chill Warning
Winter Storm Warning
Winter Weather Advisory
Additional Severe Weather Maps
Severe Outlook Today
Severe Outlook Today
WSI's Severe Outlook Map displays current Watches, Warnings and Advisories via County Fill colors.
Severe Outlook Tomorrow
Severe Outlook Tomorrow
WSI's Severe Outlook Forecast Map displaying projected Watches, Warnings and Advisories.
The THUNDERcast map shows areas of probability for regional or national thunderstorms for the current day.
1Km Storm Watch
1Km Storm Watch
The 1Km map allows you to view 1 kilometer (km) resolution radar imagery both nationally and regionally.
Metro Storm Watch
Metro Storm Watch
The Metro map allows you to view 1 kilometer (km) resolution radar imagery.