WGN-TV Chief Meteorologist Tom Skilling and the WGN Weather Center staff provide daily coverage of weather in the Chicago area.

The tops of Tuesday evening’s thunderheads featuring mammatus cloud beneath the anvil

|

Thunderstorms walloped sections of the Chicago area Tuesday evening. Doppler radar
scanned cloud tops—like the one pictured here and photographed and sent to us by
Brett Smith---as high as 48,000 ft. Final rainfall reached 1.40” near Wilmington in
south suburban Will County and 1.90” in just 90 minutes in sections of Kendall County.
Brett also captured the mammatus cloud on the underside of the storm’s anvil
overhang. Great job Brett—and MANY THANKS for sharing these shots with us!

Tom Skilling

090308_CIMG0646.jpg

090308_2CIMG0657.jpg
Photos courtesy of Brett Smith