The forecast appears rain-free for the next couple days and that should allow Chicago-area flooding to gradually recede – some spots much faster than others, depending upon upstream flow/runoff. Major flooding should improve to Moderate levels today at Des Plaines on the Des Plaines River and Major flooding on the Illinois will improve somewhat today at Morris and Ottawa, but continue to rise at LaSalle. Flood Warnings have been dropped at quickly-receding Coal City on the Mazon River, Wilmington on the Kankakee and Milford on Sugar Creek. Belvidere on the Kishwaukee River and Bolingbrook on the East Branch of the DuPage River are expected to fall below flood later today.
River segments under Flood Warnings/Advisories at 7AM this Wednesday morning were depicted in light green on the headlined map. Following are latest Hydrologic River Stages/Flood Forecasts issued by the Chicago National Weather Service:
Hydrologic Summary
National Weather Service Chicago/Romeoville IL
730 AM CDT Wed May 20 2020
Location Flood Stage Time 24-hr Flood
Stage Today Change Forecast
North Branch Chicago River
Chicago (Pulaski Road 18.0 15.81 07 AM Wed -0.94
Des Plaines River
Russell 7.0 8.88 06 AM Wed 0.20 MINOR
Gurnee 7.0 9.81 06 AM Wed 0.04 MODERATE
Lincolnshire 12.5 14.93 07 AM Wed -0.32 MODERATE
Des Plaines 15.0 18.83 07 AM Wed -0.80 MAJOR
River Forest 16.0 16.59 07 AM Wed -0.59 MINOR
Riverside 7.5 8.76 07 AM Wed -0.45 MODERATE
Fox River
Algonquin Lock & Dam t 9.5 11.14 06 AM Wed 0.01 MODERATE
Montgomery 13.5 13.70 07 AM Wed -0.36 MINOR
Dayton 12.0 13.62 07 AM Wed -3.08 MODERATE
East Branch Du Page River
Bolingbrook 19.5 19.27 06 AM Wed -1.45 MINOR
West Branch Du Page River
Warrenville 11.5 10.37 07 AM Wed -1.50
Du Page River
Plainfield 12.0 10.99 07 AM Wed -2.11
Shorewood 6.5 6.98 07 AM Wed -1.95 MINOR
Iroquois River
Rensselaer 12.0 11.39 06 AM Wed -0.42 ADVISORY
Foresman 18.0 16.35 07 AM Wed 0.23 ADVISORY
Chebanse 16.0 14.87 07 AM Wed -0.01 ADVISORY
Iroquois 18.0 17.19 07 AM Wed 0.12 ADVISORY
Sugar Creek
Milford 18.0 17.46 07 AM Wed -2.52
Kankakee River
Dunns Bridge 10.0 9.17 07 AM Wed 0.29 ADVISORY
Kouts 11.0 10.14 07 AM Wed 0.11 ADVISORY
Shelby 10.5 11.32 07 AM Wed -0.26 MINOR
Momence 5.0 5.55 07 AM Wed -0.68 MINOR
Wilmington 6.5 6.21 07 AM Wed -1.07
Thorn Creek
Thornton 10.0 5.89 06 AM Wed -2.94
Little Calumet River
Dyer 12.0 4.36 07 AM Wed -1.34
Munster (H 12.0 10.38 07 AM Wed -2.02
South Holland 16.5 12.04 07 AM Wed -2.27
Mazon River
Coal City 12.0 8.72 07 AM Wed -7.56
Vermilion River
Pontiac 14.0 15.26 07 AM Wed -1.36 MODERATE
Leonore 16.0 19.68 07 AM Wed -3.24 MINOR
Upper Illinois River
Morris 16.0 22.07 07 AM Wed -2.70 MAJOR
Ottawa 463.0 470.93 06 AM Wed -1.45 MAJOR
La Salle 20.0 33.02 07 AM Wed 0.93 MAJOR
S Branch Kishwaukee River
DeKalb 10.0 5.91 07 AM Wed -1.42
Kishwaukee River
Belvidere 9.0 9.17 06 AM Wed -1.33 MINOR
Perryville 12.0 14.92 06 AM Wed -0.02 MINOR
Pecatonica River
Shirland 12.0 10.87 07 AM Wed 0.28
Rock River
Rockton 10.0 7.01 06 AM Wed 0.08
Latham Park 9.0 7.18 06 AM Wed 0.04
Rockford (Auburn Stree 6.0 3.19 07 AM Wed 0.01
Byron 13.0 12.50 07 AM Wed -0.47
Dixon 16.0 14.42 06 AM Wed -0.28 ADVISORY
