Headline:
Flood Warning issued June 22 at 3:07AM CDT until June 22 at 6:15AM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Immediate
Effective:
June 22, 2026 - 1:07am
Expires:
June 22, 2026 - 4:15am
Description:
* WHAT...Flooding caused by excessive rainfall continues.
* WHERE...Portions of northeast Illinois, including the following
county, Cook and northwest Indiana, including the following
counties, Lake IN and Porter.
* WHEN...Until 615 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 301 AM CDT, Doppler radar indicated that the rainfall was
ending across the warned area. In spite of this, runoff from
the 2 and 2.5 inches of rain that fell acorss the area on
Sunday has caused significant rises on area rivers and
creeks, with several gauges indicating that flooding is
ongoing. This is particularly the case along the portions of
the Little Calumet, Thorn Creek, Butterfield Creek, Deer
Creek, Lansing Ditch and Hart Ditch.
- Some locations that will experience flooding include...
Chicago, Hammond, Gary, Tinley Park, Calumet City, Portage,
Merrillville, Valparaiso, Chicago Heights, Roseland, East
Chicago, Schererville, Hobart, Lansing, Oak Forest, Harvey,
Highland, Blue Island, Munster and Dolton.
- http://www.weather.gov/safety/flood
Instruction:
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.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Area Description:
Cook, IL; Lake, IN; Porter, IN
Forcast Office:
NWS Chicago IL
Sender: