153 SXUS99 KDSM 042255 CCA RERDSM RECORD EVENT REPORT NATIONAL WEATHER SERVICE DES MOINES IA 550 PM CDT FRI OCT 4 2002 ...RECORD RAINFALL FOR OCTOBER 4TH IS SET IN MASON CITY... A 24 HOUR RECORD RAINFALL OF 1.39 INCHES WAS SET IN MASON CITY TODAY. THE PREVIOUS RECORD WAS 0.84 INCHES SET BACK IN 1913. WIDESPREAD SHOWER AND THUNDERSTORM ACTIVITY OCCURRED EARLY THIS MORNING ACROSS MUCH OF THE STATE WITH MODERATE TO HEAVY RAINFALL. OVER ONE INCH OF RAIN WAS OBSERVED ACROSS PORTIONS OF WEST CENTRAL...NORTHWEST...AND NORTH CENTRAL IOWA WITH LOCALIZED AMOUNTS NEAR TWO AND A HALF INCHES.