Oskaloosa.com

CNHI/Southeast Iowa

May 6, 2013

May snowstorm dubbed 'unprecedented'

KNOXVILLE — Last week's freak snowstorm is being called “unprecedented” by weather experts.

The National Weather Service in Des Moines says the storm broke records throughout the region. In Iowa, the storm broke both single-day and storm total records for May.

Here's a look at some of the records.

  • Highest May storm total: 13 inches in Osage (previous record was 10 inches in Les Mars in 1947
  • Biggest average statewide snowfall: 3.3 inches (previous record 1.2 inches in 1947)
  • Latest spring storm to produce more than a foot of snow: 5/1-3/2013 (previous record was April 20 in both 1918 and 1992)

Virtually every part of Iowa saw snow. Official totals put Ottumwa at an inch and Pella at 1.2 inches. The Oskaloosa area saw 2.5 inches of snow. Knoxville's official total was 6 inches.

The National Weather Service has put together a web page for the storm. Click here to go to it.

The below animation from the NWS shows the storm as it moved through the state.

 

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