Scientists have discovered that many flood maps may underestimate serious risks due to hidden changes in river channels.
The Des Plaines River has seen near-record flooding in northwest suburban Des Plaines, and officials fear levels could reach major flood stage this weekend with more rain in the forecast.
Areas near the Des Plaines River from just east of O’Hare Airport north to the Wisconsin border were under a flood warning due to the river’s rising levels.
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