767 SXUS73 KFSD 092011 RERSUX RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 311 PM CDT MON MAY 9 2011 ...RECORD HIGH TEMPERATURE BROKEN AT SIOUX CITY IOWA... AT 307 PM CDT THE TEMPERATURE AT SIOUX GATEWAY AIRPORT IN SIOUX CITY IOWA HIT 93 DEGREES. THIS BREAKS THE RECORD HIGH FOR THE DATE SET IN 2001 AND 1928. $$ SHEEHAN