Headline:
Flood Watch issued September 20 at 10:17AM CDT until September 20 at 1:00PM CDT by NWS Chicago IL
Event:
Flood Watch
Urgency:
Future
Effective:
September 20, 2026 - 8:17am
Expires:
September 20, 2026 - 11:00am
Description:
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Illinois, including the following areas,
Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane,
Kankakee, Kendall, La Salle, Lee, Northern Cook, Northern Will,
Ogle, Southern Cook and Southern Will and northwest Indiana,
including the following areas, Lake IN and Porter.
* WHEN...Until 1 PM CDT this afternoon.
* 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...
- The threat for widespread heavy rainfall is ending. However,
continued moderate to isolated heavy rainfall may lead to a
continued localized flood threat.
- http://www.weather.gov/safety/flood
Instruction:
A Flood Watch for flash flooding means rapid-onset flooding is
possible, but not yet certain, based upon the latest forecasts. Flash
flooding is a dangerous situation. Persons with interests along area
rivers, creeks, and other waterways should monitor the latest
forecasts and be prepared to take action should flooding develop.
Area Description:
Ogle; Lee; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Kankakee; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake; Porter
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov