Regional Weather Summary
Issued by NWS Quad Cities, IA IL

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AWUS83 KDVN 200011

Weather Summary
National Weather Service Quad Cities IA IL
711 PM CDT Tue Sep 19 2017

High pressure stretching from northern Quebec southwest towards
the Great Lakes provided our region with mostly sunny skies
Tuesday evening. Daytime high temperatures as of 7 PM were in the
upper 70s to lower 80s.

A warm front in place across central Illinois and northern
Missouri will begin lifting northward overnight, allowing
unseasonably warm and humid air to build over the region. Isolated
showers and thunderstorms will be possible as the front passes,
mainly west of the Mississippi River. Overnight low temperatures
will drop into middle to upper 60s. Lingering showers and
thunderstorms will weaken Wednesday morning, allowing skies to
become partly to mostly sunny by the afternoon. A cold front will
approach the region from the west during the afternoon, and will
produce scattered showers and thunderstorms. Some of these storms
may become strong during the evening, and will be capable of
producing large hail and damaging winds. High temperatures will
range from the middle 80s over Highway 20, to near 90 over west
central Illinois.

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