Past/Archived Weather Current and Archived Data Sources Iastate Mtarchive Data Server – GEMPAK Data NCDC HDSS Access System NOAA CLASS – Satellite Data (Will work until 5/9/18) NOAA NCDC NOMADS – Model Data NOHRSC National Snow Analyses Plymouth State Weather Center SPC Mesoscale Analysis Archive SPC Sounding Climatology Page SPC Tornado Environment Browser The Bufkit Warehouse Data Sources UCAR Mesoscale &Microscale Meteorology Laboratory (MMM) Archived Images . 2013 Tornado Event Radar Data (YYMMDD): 130528 Fenton, MI EF2 . 2015 Tornado Event Radar Data (YYMMDD): 150525 Coal City, IL EF3 . 2017 Tornado Event Radar Data (YYMMDD): 170228 Washburn, IL EF3 170429 Canton, TX EF4 170817 Kingston, MI Unrated . 2018 Tornado Event Radar Data (YYMMDD): 180628 Camp Crook, SD EF3 180719 Marshalltown/Pella, IA EF3’s .