Colin Davis and I chased an HP supercell near the St. Louis area, starting the day in Litchfield, IL. The storm exhibited strong rotation, and produced at least one tornado while we were repositioning.
A powerful early winter storm system was responsible for the 3rd largest tornado outbreak in Illinois history on Saturday, December 1st 2018. I followed one cyclic tornado from west of Jackonville, IL to Beardstown, IL as it produced 4 or 5 separate tornadoes, one of which struck the town of Beardstown. I later saw a distant tornado at dusk near Kilbourne, IL and a final lightning illuminated tornado near Decatur from the same supercell that had devastated the town of Taylorv