A light snow event on the 28th transitioned to freezing drizzle before ending during the early morning hours of the 29th. S.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS ARX wrote it up.
A light snow event on the 28th transitioned to freezing drizzle before ending during the early morning hours of the 29th. The freezing drizzle created icy roads and six people were injured in an accident on U.S. Highway 52 south of Decorah (Winneshiek County).
The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
Six people were injured in a two vehicle accident on U.S. Highway 52 south of Decorah. Freezing drizzle created slippery conditions across the county.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2011Every state in 2011This day in weather historyWarnings in Iowa, January 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 274218.