Rory Groves and I headed southeast from the Twin Cities on U.S. 52, as northeast Iowa looked to be the best spot for severe storm development within driving range. 0-1 km helicity was impressive, but there was a substantial cap to overcome. Eventually, storms did fire immediately to our southwest, but things were really mushy looking for a while. Apparently, the lapse rate really wasn't very steep (almost as poor as moist adiabatic above 700 mb).
|Storm to our east from our perspective in New Hampton, Iowa.|
|This picture taken by Rory Groves. Backlit storms at sunset. Storm to the left becomes severe-warned, producing 3/4" hail.|
|Rory also took this picture of me filming the storm just east of New Hampton.|
|Another picture by Rory.|
|Later on, the storms produce a great lightning show after dark.|
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