Weekend System………October 9th, 2012 at 10:52 pm by Chad Evans under Chad's WLFI Weather Blog
Weekend system still looks impressive with tornadoes, wind & some hail possible from Wisconsin to Texas with Kansas, Iowa & Missouri as the bulls-eye for the best potential of widespread severe weather.
Warm front will pass through our area Saturday with a wave of some showers & storms late Saturday morning to Saturday early afternoon, followed by some sun & 60s to 70s later in the day. Saturday night looks windy with lows only in the middle 60s! Squall line to the west will be approaching. Rather than the line (most likely weakening with eastward progression), coming through in the early Sunday morning hours of 5-8 a.m., looks more like 12 a.m. to 2 a.m. time frame.
For us, dynamics are more than supportive of a damaging wind-producing QLCS squall line. PROBLEM is instability. New data is not impressive with surface or mixed layer CAPE. Looks like weakening line of storms. It may hold on long enough for the buoyancy to mixed down a few damaging wind gusts in the western half of the viewing area (Francesville to Lafayette to Crawfordsville & westward).