Flood Warning
Status
Event Continued Active alertStart Time
Thu 04/16/2026 01:19 PM EDTEnd Time
Fri 04/17/2026 06:30 AM EDTSignificance
WarningImpacts
High impact
Locations Affected
Elgin, IL ∙ Cary, IL ∙ Williams Park, IL ∙ Carpentersville, IL ∙ Lilymoor, IL ∙ Sleepy Hollow, IL ∙ Oakwood Hills, IL ∙ Island Lake, IL ∙ McHenry, IL ∙ Fox River Grove, ILHeadline
...The Flood Warning is extended for the following rivers in
Illinois...
Fox River at Montgomery affecting Kane and Kendall Counties.
...The Flood Warning continues for the following rivers in
Illinois...
Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake
IL and McHenry Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based on observed precipitation as well as
forecast precipitation 24 hours into the future. Changes to the
rainfall forecast, or any additional rainfall after 24 hours, may
cause changes to these river forecasts.
Additional information is available at www.weather.gov.
The next statement will be issued by late tonight.
&&
Full Alert Message
Flood Statement National Weather Service Chicago IL 1219 PM CDT Thu Apr 16 2026 ...The Flood Warning is extended for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. ...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake IL and McHenry Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by late tonight. && ...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 10.5 feet, Structures threatened along Fox River Drive in East Dundee. Parking lots threatened in downtown West Dundee. Low-lying sections of Cornish Park are inundated in Algonquin. Low-lying sections of Trout Park inundated north of Elgin. At 11.0 feet, Structures threatened near Elgin Avenue and Corey Street south of East Dundee. Lincoln Avenue threatened in West Dundee. Filip Street and Fox River Drive threatened in Algonquin. Fox River Trail threatened south of downtown Elgin. At 11.5 feet, Residences threatened along Oceola Drive in Algonquin. A few residences threatened along McBridge Street in Elgin. Jayne Street and Beach Drive threatened in Algonquin. River Street threatened in East Dundee. Jerusha Avenue threatened in Elgin. Fox River Trail threatened between East Dundee and Elgin. * ADDITIONAL DETAILS... - At 11:30 AM CDT Thursday the stage was 10.3 feet. - Recent Activity...The river has continued to slowly rise to near moderate flood stage. - Forecast...The river is expected to continue a slow rise over the next several days. The river may crest near 11.5 by early next week. - Flood stage is 9.5 feet. - Flood History...This crest compares to a previous crest of 11.4 feet on 09/17/2019. - http://www.weather.gov/safety/flood && LAT...LON 4238 8829 4234 8818 4223 8813 4194 8827 4195 8838 4219 8830
Technical Header
ILC089-097-111-171030- /O.CON.KLOT.FL.W.0016.000000T0000Z-000000T0000Z/ /AFBI2.2.ER.260414T1200Z.000000T0000Z.000000T0000Z.NO/ 1219 PM CDT Thu Apr 16 2026