UpdateJune 21st, 2013 at 4:17 pm by Chad Evans under Chad's WLFI Weather Blog
Nice cold pool has formed with Illinois MCS today, causing it to surge south & southwest greatly (all of the widespread rainfall created a massive of area of rain-cooled air amidst lots of heat, so as the heat rises, the cold pool air surges out to replace theh space). Though it will gradually collapse as it encounters more capping issues (CINH), some storms will be possible this evening on it outflow boundary with the best potential in our northwestern & northern counties.
We will see how well the storms can solidify & hopefully some drier areas will get rainfall.
Otherwise, its leftover convective debri (cloudiness) will be with us, giving us a partly to mostly cloudy sky.
From here on out through Wednesday, spotty storms will be a daily occurrence, it appears. More widespread, organized storms are possible Wednesday evening-night with perhaps some rain lingering into Thursday morning.