647 SXUS73 KDMX 051657 RERDMX RECORD EVENT REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1055 AM CST MON DEC 05 2005 ...RECORD LOW TEMPERATURE SET AT MASON CITY...OTTUMWA AND WATERLOO... SITE MORNING LOW PREVIOUS RECORD MASON CITY -7 -5 IN 1977 OTTUMWA -5 2 IN 1977 WATERLOO -16 -3 IN 1992 THE COOPERATIVE WEATHER STATION IN ATLANTIC REPORTED A LOW TEMPERATURE THIS MORNING OF -14. THIS BREAKS THEIR PREVIOUS RECORD OF -8 IN 1898. $$ BF