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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

Late on the night of July 11 into the morning of July 12, multiple waves of thunderstorms moved across southern Wisconsin and northeast Illinois.  With summertime moisture at its maximum, the storms produced copious rainfall rates.  Given the training nature over the same location, substantial rainfall amounts resulted.  This brought flash flooding by daybreak on July 12 that continued through that entire day and into the next night.  In addition, river flooding became a major problem and continues, especially on the Des Plaines and Fox Rivers.  For more on the rivers, visit our AHPS page.

Radar Loop

 

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