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Another Round of Heavy Rain and Mountain Snow in California; Snow in the Great Lakes and Northeast

Another round of heavy rainfall will renew concerns for additional flash flooding and landslides in southern California around burn scars and coastal mountain ranges. A low pressure system is bringing enhanced snowfall downwind from the lower Great Lakes into the Northeast mountain ranges. Above average temperatures will challenge or break daily record high temperatures across the southern Plains. Read More >

Overview

Scattered showers and thunderstorms developed across eastern Iowa, northwest Illinois, and northeast Missouri during the afternoon and evening of Monday, September 3, as an upper level disturbance tracked across the region. One thunderstorm intensified into a supercell, and produced a few tornados as it tracked across Benton and Linn counties during the late afternoon and early evening.  Another storm produced a tornado on the west northwest side of Cedar Rapids shortly after 9 PM CDT. 

Additional Event Summaries:


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WPC Surface Fronts/Pressure Loop
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