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Active official alertUpdated

Flood Watch for Ogle; Lee; De Kalb +13 more

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What you need to know

Effective
Ends or expires
Official severity
Severe
Official urgency
Future
Official certainty
Possible

What is happening

What: Flash flooding caused by excessive rainfall is possible. Impacts: Creeks and streams may rise out of their banks. Where: Portions of Illinois, including the following areas, De Kalb, Eastern Will, Ford, Grundy, Iroquois, Kankakee, Kendall, La Salle, Lee, Livingston, Northern Will, Ogle and Southern Will and...

What the bulletin says to do

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.

Full official description

Bulletin details

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Illinois, including the following areas, De Kalb, Eastern Will, Ford, Grundy, Iroquois, Kankakee, Kendall, La Salle, Lee, Livingston, Northern Will, Ogle and Southern Will and northwest Indiana, including the following areas, Benton, Jasper and Newton. * WHEN...From this evening through Friday morning. * IMPACTS...Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... The potential exists for repeated rounds of showers and thunderstorms developing north of a stalled surface front. Localized rainfall rates may exceed 2 inches per hour over portions of northern Illinois and northwest Indiana tonight into early Friday morning. Portions of the watch area received as much as 2 to 4 inches of rainfall over the past few days and will be more susceptible to flooding with any additional heavy rainfall. http://www.weather.gov/safety/flood

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

1 captured
  1. Alert

    Flood Watch issued August 13 at 2:08AM CDT until August 14 at 10:00AM CDT by NWS Chicago IL

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Chicago IL. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections