Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Heavy rains of 8 to 12 inches that occurred on July 22-24 along and north of the Highway 20 corridor between Waterloo, IA and Dubuque, IA resulted in record flooding on the Maquoketa River and Lake Delhi (also called Hartwick Lake). The pressure from the record river flood levels were too much for an earthen berm on the south side of the Lake Delhi/Hartwick Lake Dam. It gave way shortly after 1 pm July 24.

48 Hour Rainfall Totals Ending ~7AM July 24

Hydrograph of the Maquoketa River Level at Manchester Highway 20

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Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

July 22-24, 2010 Heavy Rain and Flooding