June 20, 2015 – Southeast Iowa
June 20th through the 22nd looked like a decent opportunity for a three day chase. The 20th featured a belt of westerlies across the northern portion of the CONUS while a low with attendant cold front in the Dakotas was progged to drift to the southeast into the midwest. East of the front, the warm sector looked to be characterized by a moderately unstable airmass with MLCAPE approaching the 4,000 J/Kg area as temperatures were expected to be in the low 80s with low 70 dewpoints.
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