Headline:
Flood Watch issued September 19 at 8:23PM CDT until September 20 at 7:00AM CDT by NWS Chicago IL
Event:
Flood Watch
Urgency:
Future
Effective:
September 19, 2026 - 6:23pm
Expires:
September 20, 2026 - 2:30am
Description:
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Illinois, including the following areas, Boone,
Central Cook, De Kalb, DuPage, Kane, Kendall, Lake IL, Lee,
McHenry, Northern Cook, Northern Will, Ogle, Southern Cook and
Winnebago and northwest Indiana, including the following areas,
Lake IN and Porter.
* WHEN...Until 7 AM CDT Sunday.
* 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...
- Another round of showers and thunderstorms is expected late this
evening and overnight. Swaths of heavy to very heavy rainfall
with 2+ inch per hour rainfall rates are likely to occur within
the watch area and may result in areas of flash flooding and
cause rapid rises on area rivers, creeks, and streams.
- 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:
Winnebago; Boone; McHenry; Lake; Ogle; Lee; De Kalb; Kane; DuPage; Kendall; Northern Cook; Central Cook; Southern Cook; Northern Will; Lake; Porter
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov