Headline:
Flood Watch issued August 9 at 5:03PM CDT until August 10 at 7:00AM CDT by NWS Chicago IL
Event:
Flood Watch
Urgency:
Future
Effective:
August 9, 2026 - 3:03pm
Expires:
August 9, 2026 - 11:15pm
Description:
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of Illinois, including the following areas,
Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane,
Kankakee, Kendall, Lake IL, McHenry, Northern Cook, Northern Will,
Southern Cook and Southern Will and northwest Indiana, including
the following areas, Jasper, Lake IN, Newton and Porter.
* WHEN...From 9 PM CDT this evening through early Monday 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...
- The potential exists for repeated rounds of showers and
thunderstorms developing along a stalled surface front. Localized
rainfall rates may exceed 2 inches per hour over portions of
northeast Illinois and northwest Indiana late this evening
through tonight. Portions of the watch area received 1 to 3
inches of rainfall earlier today and will be more susceptible to
flooding with any additional heavy rainfall.
- 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:
McHenry; Lake; De Kalb; Kane; DuPage; Kendall; Grundy; Kankakee; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake; Porter; Newton; Jasper
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov