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Sep 30 / USGS Newsroom

Hurricane Ike’s Effects Linger in the Great Lakes

Videos, pictures, and real-time data show damage from Ike along the Lake Michigan shore near Portage, Ind.Real Time Data

Although Hurricane Ike is long gone, its impact lingers more than a thousand miles from where it made landfall.  Runoff from tributaries dumped massive amounts of sediment into Lake Michigan, contaminating the water, compromising near-shore navigation and raising E coli bacteria to levels unsafe for swimming. 

According to Richard Whitman, a U.S. Geological Survey (USGS) expert on beach health, “The local effects that Ike had on Lake Michigan’s Indiana shoreline, water depth, and water quality have been profound.”

While assessing Ike’s impact on the lake, Whitman noted that “The velocity and height of a tributary emptying into Lake Michigan at Portage, Indiana went off the chart.  We measured a tremendous amount of sediment accumulation Near Ogden Dunes.”Lake Michigan shore

USGS scientists use high tech, state-of-the-art equipment in the lake to measure runoff, the lake’s currents, and sediment input during storms. These data are used to forecast whether a beach is unsafe for swimmers. Beaches are subject to high bacteria levels following storms.

Heavy rains from Ike significantly impacted northwestern Indiana and Chicago because the ground was already saturated by a stalled cold front.

[Via USGS]

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