Where's Tabitha? http://www.spc.noaa.gov/products/md/md0234.html Mesoscale Discussion 0234 NWS Storm Prediction Center Norman OK 0452 AM CDT Fri Apr 13 2018 Areas affected...the southwest quarter of South Dakota and vicinity Concerning...Heavy snow Valid 130952Z - 131545Z SUMMARY...Snowfall rates locally in excess of 1"/hr near the Black Hills should expand eastward with time across a larger portion of the southwest South Dakota Vicinity...... http://www.spc.noaa.gov/products/md/mcd0234.gif