Unsettled Weather in the Southeast and West; Unseasonably Hot in the North-Central U.S.; Coastal Impacts Along the East Coast

Thunderstorms and heavy rainfall may produce isolated flash flooding along the southeast Atlantic coast the next several days. Showers and thunderstorms persist across portions of the Great Basin, Pacific Northwest, and northern Rockies. Unseasonably hot temperatures continue for much of the Plains and Midwest. High surf, dangerous rip currents, and coastal flooding continue along the East Coast. Read More >

A Spring Snowstorm For The Record Books

On May 10, 1990, eastern Wisconsin experienced its latest snowstorm on record. The snow was very wet and heavy, and unfortunately it occurred when most trees and other plants had just leafed out for the new season. As a result, thousands of trees and tree branches came down under the weight of the heavy snow. Many power-lines snapped as the trees/branches came down.

Below is a rough plot of the snow amounts along with a 6-inch contour line.

Below is a Storm Data event narrative for the snowstorm. Click on the image for a larger version.

For the meteorology wonks out there...

Below are maps at 850/700/500mb at 7 PM May 9th, 1 AM May 10th and 7 AM May 10th. Clearly, this was an energetic system that was deepening rapidly. We have a saying in the office, "Upper low, look out below."