10:31 P.M.August 20th, 2014 at 10:34 pm by Chad Evans under Chad's WLFI Weather Blog
Highs today varied from lower to upper 80s, depending on the extent of cloud cover & duration of cloud cover at that station. Temperatures will were held down more in the southwest due to lots of debri clouds & a few showers & t’showers. The only other t’shower in the area was in the far northeast.
Showers this evening in eastern Illinois have completely faded away, though their debri cloudiness is moving over part of the viewing area as of 10:30 p.m.
I am watching area circled for t’storm development as low level jet strengthens over the next few hours. One renegade storm has formed near St. Louis. This may be in response to LLJ, but also interaction of shortwave trough ejecting through Missouri & Iowa with the unstable airmass. There is another that will pop organized severe t’storms from South Dakota to Minnesota & Iowa overnight-tomorrow morning.
Isolated severe storms with wind/hail & locally heavy rainfall are possible, if they can really get going.