National Weather Service United States Department of Commerce

Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Overview

A line of severe thunderstorms formed across southern Minnesota and produced damaging wind along and just south of Interstate 90 in southeast Minnesota.  Wind gusts reached 60-70 mph from just southwest of Rochester, MN to near Preston, MN.

As the storms moved into far northeast Iowa and western Wisconsin they were weakening but still produced gusts of 35 to 50 mph in many locations.

In addition, additional storms formed later that same night, into the morning hours of Friday August 19th, which brought several more inches of rain to parts of the region.  Some spots received 2-5" of rain which led to additional street and flash flooding.

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Radar loop between 4-7 p.m. on August 18, 2016
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