Alerts in Effect
Flood WarningIssued at 09:53 Thursday 19 September 2019
...The Flood Warning continues for the following rivers in
Des Plaines River near Russell affecting Lake County
Des Plaines River near Gurnee affecting Lake County
Des Plaines River at Lincolnshire affecting Lake County
Des Plaines River near Des Plaines affecting Cook County
Fox River at Montgomery affecting Kane and Kendall Counties
Fox River at Algonquin Lock & Dam tailwater affecting Kane and
The following forecasts are based on observed precipitation as well
as forecast precipitation 24-48 hours into the future.
The Flood Warning continues for
The Des Plaines River near Des Plaines, or from Palatine Road in
Prospect Heights downstream to Irving Park Road in Chicago.
* until Saturday afternoon.
* At 945 AM Thursday the stage was 16.4 feet.
* Flood stage is 15.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by
Hydrologic OutlookIssued at 13:06 Thursday 19 September 2019
A slow-moving frontal system moving into the area by late this
weekend has the potential to produce heavy rainfall across the
area. Rainfall may lead to flooding, especially if occuring in
the Des Plaines, Fox, and Rock River Basins where recent heavy
rainfall has caused elevated water levels.
This flood potential exists from late this weekend through at
least early next week.
Over the last week, 2 to 6 inches of rainfall has occurred across
portions of far northern Illinois and southern Wisconsin, with
5 to 10 inches over the last two weeks. This wet weather has
contributed to elevated soil moisture and water levels.
Heavy rainfall is possible late this weekend as a cold front moves
into the area and interacts with moisture from the remnants of
Tropical Storm Imelda, which has recently moved inland over
southeast Texas. One to three inches of rainfall is possible
across portions of the region, but exact location and amounts of
rainfall are uncertain at this time. If heavy rainfall occurs,
rises on area rivers would be possible, including the possibility
of flooding if heavy rainfall occurs in areas with already
elevated water levels.
This outlook means that elevated water levels and potential
impacts are possible, but not yet certain. Persons should closely
monitor forecasts including the possibility of flood watches,
warnings, and advisories.