Headline:
Flood Watch issued September 19 at 3:57PM CDT until September 20 at 7:00AM CDT by NWS Chicago IL
Event:
Flood Watch
Urgency:
Future
Effective:
September 19, 2026 - 1:57pm
Expires:
September 19, 2026 - 10:00pm
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...Through early Sunday morning.
* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas. Roads and streets may
be flooded.
* ADDITIONAL DETAILS...
- Showers and thunderstorms, some with torrential rainfall with
hourly rates around 2 inches per hour, are expected to redevelop
across the watch area this evening and overnight. Repeated rounds
of heavy rainfall may result in areas of flash flooding and rapid
rises on area rivers.
- 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