Flood Potential Outlook
Issued by NWS Chicago, IL

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FGUS73 KLOT 190926

Hydrologic Outlook
National Weather Service Chicago IL
426 AM CDT Wed Jul 19 2017

Thunderstorms are likely overnight across far northern Illinois,
with more rounds of storms possible in this area later this week.
With the very humid air mass in place, any storms will be able to
produce heavy rainfall. While there remains fairly high
uncertainty in placement of storms within the region from
Thursday night through Saturday, there is some signal that along
and north of Interstate 88 in northern Illinois and into Wisconsin
may be the most favored. Given wet antecedent conditions over the
Des Plaines, Fox, and north branch of the Chicago River basins,
this portion of far northeast Illinois is susceptible to
additional flooding if multiple rounds of heavy rainfall were to
pan out.

Those with hydrologic concerns in that area should maintain a
close watch on the rainfall and river stage forecasts which will
become gradually more refined with time.


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