A polar cold front had moved south across Iowa during the afternoon of the 3rd and early morning of the 4th.  A shallow layer of cold air was in place over Iowa.  At the same time, a wave formed along the front in Kansas and lifted northeast across Missouri during the day in response to a strong short wave aloft.  A southwest flow of warm and moist air flowed over the top of the cold air at the surface.  The result was an area of freezing rain with embedded thunderstorms and some hail.  Icing was a problem north of U.S. Highway 20.  Though the ground temperatures were warm enough that it was not a major travel problem, exposed objects collected ice rapidly.  Ice accretions of one quarter to one third of an inch were common across the area.  The ice caused some minor problems with downed tree branches and spotty power outages, but nothing serious.

Ice Storm in BLACK HAWK, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in BUTLER, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in HANCOCK, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in HAMILTON, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in CERRO GORDO, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in CALHOUN, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in EMMET, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in FRANKLIN, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in GRUNDY, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in WRIGHT, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in WORTH, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in BREMER, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in WEBSTER, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in WINNEBAGO, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in HUMBOLDT, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in KOSSUTH, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in PALO ALTO, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in HARDIN, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in POCAHONTAS, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Ice Storm in SAC, IOWA
From 04-APR-03 08:00:00 to 04-APR-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.