Flood warning for portions of northern Illinois.

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Bright green areas shown above indicate flood warnings.

The National Weather Service in Chicago has issued a

* Flood Warning for Urban Areas and Small Streams in…
Northern De Kalb County in north central Illinois…
Northern Kane County in northeastern Illinois…
Southern McHenry County in northeastern Illinois…
Southern Boone County in north central Illinois…

* Until 1145 PM CDT

* At 551 PM CDT, Doppler radar indicated that thunderstorms have
produced significant rainfall amounts which will cause flooding
from excessive runoff. According to radar estimates…around two
to four and a half inches of rain have fallen. Additional rainfall
amounts of one half inch to an inch are possible through early

* Minor flooding has been reported in portions of McHenry
County…with several roads closed due to three to four inches of
water on the roadways. The runoff from that rain that has fallen
is expected to cause this flooding to persist and in some
locations to worsen…especially in low lying flood prone areas.

* Some locations that will experience flooding include…
Algonquin, Belvidere, Woodstock, Island Lake, Marengo, Genoa, Lake
In The Hills, Huntley, Hampshire, Lakewood, Oakwood Hills, Prairie
Grove, Kirkland, Kingston, Bull Valley, Holiday Hills, Trout
Valley, Fox River Valley Gardens, Crystal Lake and Cary.

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