Weather Alerts for Naperville

Issued by the National Weather Service

Flood Watch  FLOOD WATCH   Flood Watch
NAPERVILLE

Areas Affected:
Lake - Lee - De Kalb - Kane - DuPage - Kendall - Northern Cook - Central Cook - Southern Cook - Northern Will - Lake - Porter
Effective: Fri, 9/18 9:49pm Updated: Sat, 9/19 3:02am Urgency: Future
Expires: Sat, 9/19 6:00am Severity:  Severe  Certainty: Possible

 
Details:
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of Illinois, including the following areas,
Central Cook, De Kalb, DuPage, Kane, Kendall, Lake IL, Lee,
Northern Cook, Northern Will and Southern Cook and northwest
Indiana, including the following areas, Lake IN and Porter.

* WHEN...From 4 AM CDT Saturday through Saturday afternoon.

* 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 late tonight through Saturday morning
may produce widespread rainfall rates up to 2 inches per hour
that could lead to flash flooding, particularly over urban areas.

Additional thunderstorms Saturday evening into early Sunday
morning have the potential to produce torrential rainfall that
results in flash flooding, though the exact placement of this
rainfall remains unclear. A second Flood Watch for flash flooding
may be needed during this period.
- http://www.weather.gov/safety/flood

Information:
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.