476 SXUS73 KFSD 151820 RERSUX RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1220 PM CST SUN JAN 15 2006 ...RECORD HIGH TEMPERATURE BROKEN AT SIOUX CITY IOWA... AT 1220 PM CST THE TEMPERATURE AT SIOUX GATEWAY AIRPORT IN SIOUX CITY IOWA HIT 55 DEGREES. THIS BREAKS THE RECORD HIGH FOR THE DATE OF 54 DEGREES SET IN 1986 AND AGAIN IN 2000. $$