Whats left of the thunderstorms that produced golf ball sized hail in St. Louis is now moving in our direction. It continues to weaken, and clearing skies are developing across a good chunk of Illinois and Southern Indiana. The key question yesterday was instability, and that question has been answered. Dew points are currently in the mid 60's across the region, with even higher dew points to the west.
The cold front is beginning to push into far western Illinois. This will be the energy that sets off a round of showers and thunderstorms which will quickly become severe. (The latest SPC map is below)
And in fact the Storm Prediction Center has issued a mesoscale discussion for most of Illinois and far Western Indiana. (Latest Map below) A WATCH may soon be issued for this area...
More soon...
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