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Emergency Management Agency  

April-May 2013 Lake County Flood Impact Information


​This page contains links to documents, maps, and other information that was produced and compiled by Lake County partner organizations. This information was and continues to be used to support the overall response to and recovery from the devastating floods of April and May, 2013. These documents should not be used to determine actual flood extents or damage, but may be helpful in indicating areas where flood impacts are likely to have occurred. Questions about the material on this page should be directed to the Lake County Emergency Management Agency at 847-377-7100.


Estimated Inundation Maps

Overall County Impact Map - (For News Conference 4/18/2013)

Upper Fox River estimated inundation map

Chain O'Lakes estimated inundation map

Lower Fox River estimated inundation map

Thanks to the Lake County Stormwater Management Commission, the GIS/Mapping Division of the Lake County Information Technology Department, and the many partner agencies and organizations that have made these maps possible.


Aerial Photography

Multiple aerial photographs were captured by the Illinois Wing of the Civil Air Patrol, the official auxiliary of the United States Air Force, on behalf of Lake County and its many communities. These photographs were captured on Sunday, April 21, 2013. This was about 24 hours before the Fox River and Chain O'Lakes in western Lake County reached crest (maximum flood), about 24 hours after the Des Plaines River in central Lake County reached crest, and more than 24 hours AFTER the North Branch of the Chicago River system, including the Skokie River, had receded to near normal levels.

Unaltered photos may be used or republished, ONLY with appropriate attribution to the Illinois Wing of the Civil Air Patrol.

The Lake County Mapping Department produced a KML file that provides pin-point map links to the photos, based on the location of the aircraft at the time when each photo was taken. The map can be found here:

Google Map of Aerial Photos -


The aerial photographs are also available from a flickr website, which can be found here:

Flickr Aerial Photo albums -


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