Thunderstorms became severe after 4 am the morning of August 9th. The storms developed in the vicinity of a cold frontal boundary, and produced large hail ranging from the size of quarters to the size of golf balls as they tracked to the east northeast. Locally heavy rainfall in excess of an inch also occurred, with Genoa seeing the highest rainfall total of 1.65 inches.
Click on the map below for a listing of the storm reports.
The following precipitation map illustrates the location of the heavy rainfall. Click on the image to enlarge.
The table below lists 24 hour rainfall totals greater than one half of an inch. The precipitation data is taken by National Weather Service Cooperative Observers, and automated rain gauges.
Rainfall Amount (inches)