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Home Return to list Areal Flood Advisory 0045 Issued by the Chicago Forecast Office
Action: New Issued At: 2026-06-21 19:57:08
574
WGUS83 KLOT 220056
FLSLOT
Flood Advisory
National Weather Service Chicago IL
756 PM CDT Sun Jun 21 2026
ILC031-INC089-220400-
/O.NEW.KLOT.FA.Y.0045.260622T0056Z-260622T0400Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cook IL-Lake IN IN-
756 PM CDT Sun Jun 21 2026
...FLOOD ADVISORY IN EFFECT UNTIL 11 PM CDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...Portions of southern Cook and northern Lake, IN counties.
* WHEN...Until 1100 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.
* ADDITIONAL DETAILS...
- At 754 PM CDT, Doppler radar and automated rain gauges
indicate around 1.5 inches of rain have fallen over the past
few hours due to persistent, steady rainfall.
- Additional rainfall amounts of 0.5 to 1 inch are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Chicago, Hammond, Gary, Tinley Park, Calumet City, Portage,
Merrillville, Chicago Heights, Roseland, East Chicago,
Schererville, Hobart, Lansing, Oak Forest, Harvey, Highland,
Blue Island, Munster, Dolton and Park Forest.
- 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 4164 8778 4172 8751 4169 8746 4170 8744
4169 8740 4167 8739 4166 8740 4165 8737
4163 8728 4164 8723 4163 8721 4162 8722
4148 8722 4147 8779
$$
Carlaw
Action: Continued Issued At: 2026-06-21 20:53:10
294
WGUS83 KLOT 220152
FLSLOT
Flood Advisory
National Weather Service Chicago IL
852 PM CDT Sun Jun 21 2026
ILC031-INC089-220400-
/O.CON.KLOT.FA.Y.0045.000000T0000Z-260622T0400Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cook IL-Lake IN IN-
852 PM CDT Sun Jun 21 2026
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 11 PM CDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall continues.
* WHERE...Portions of southern Cook and northern Lake, IN counties,
including the I-80/90/94 corridors.
* WHEN...Until 1100 PM CDT.
* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas. Underpasses may be
flooded.
* ADDITIONAL DETAILS...
- At 848 PM CDT, Doppler radar and automated rain gauges
indicate between 1.5 and 2 inches of rain have fallen over
the past few hours due to persistent, steady rainfall.
- Additional rainfall amounts up to 1 inch are expected over
the area. This additional rain will result in minor flooding.
Several area creeks and streams are at bankfull or rising to
near minor flood stage.
- Some locations that will experience flooding include...
Chicago, Hammond, Gary, Tinley Park, Calumet City, Portage,
Merrillville, Chicago Heights, Roseland, East Chicago,
Schererville, Hobart, Lansing, Oak Forest, Harvey, Highland,
Blue Island, Munster, Dolton and Park Forest.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Advisory means minor flooding along waterways and other poor
drainage areas is imminent or may already be occurring. Persons in
the advisory area should use caution and avoid flood waters.
&&
LAT...LON 4164 8778 4172 8751 4169 8746 4170 8744
4169 8740 4167 8739 4166 8740 4165 8737
4163 8728 4164 8723 4163 8721 4162 8722
4148 8722 4147 8779
$$
Carlaw
Action: Time Extended Issued At: 2026-06-21 22:41:44
253
WGUS83 KLOT 220341
FLSLOT
Flood Advisory
National Weather Service Chicago IL
1041 PM CDT Sun Jun 21 2026
ILC031-INC089-220700-
/O.EXT.KLOT.FA.Y.0045.000000T0000Z-260622T0700Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cook IL-Lake IN IN-
1041 PM CDT Sun Jun 21 2026
...FLOOD ADVISORY NOW IN EFFECT UNTIL 2 AM CDT MONDAY...
* WHAT...Flooding caused by excessive rainfall continues.
* WHERE...Portions of southern Cook and northern Lake, IN counties,
including the I-80/90/94 corridors.
* WHEN...Until 200 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.
* ADDITIONAL DETAILS...
- At 1035 PM CDT, Doppler radar and automated rain gauges
indicate between 1.5 and 2.5 inches of rain have fallen
through the day, with most of the rain falling during the
late afternoon and evening.
- Several area creeks and streams are at bankfull or rising to
near minor flood stage.
- Some locations that will experience flooding include...
South Side of Chicago, Hammond, Gary, Tinley Park, Calumet
City, Portage, Merrillville, Chicago Heights, Roseland, East
Chicago, Schererville, Hobart, Lansing, Oak Forest, Harvey,
Highland, Blue Island, Munster, Dolton and Park Forest.
- 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 4164 8778 4172 8751 4169 8746 4170 8744
4169 8740 4167 8739 4166 8740 4165 8737
4163 8728 4164 8723 4163 8721 4162 8722
4148 8722 4147 8779
$$
Kluber
Action: Cancelled Issued At: 2026-06-22 00:34:49
268
WGUS83 KLOT 220534
FLSLOT
Flood Advisory
National Weather Service Chicago IL
1234 AM CDT Mon Jun 22 2026
ILC031-INC089-220544-
/O.CAN.KLOT.FA.Y.0045.000000T0000Z-260622T0700Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cook IL-Lake IN IN-
1234 AM CDT Mon Jun 22 2026
...FLOOD ADVISORY CONVERTED TO A FLOOD WARNING...
The threat for widespread flooding has increased over the area.
Therefore the Flood Advisory has been replaced by a Flood Warning.
Please refer to that bulletin for more information.
&&
LAT...LON 4164 8778 4172 8751 4169 8746 4170 8744
4169 8740 4167 8739 4166 8740 4165 8737
4163 8728 4164 8723 4163 8721 4162 8722
4148 8722 4147 8779
$$
Birk
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