May 12, 2013 Lingering Ice on Minnesota Lakes
May 16, 2009 Lingering Ice on Minnesota Lakes
acquired May 12, 2013 download large image (934 KB, JPEG, 2200x2800 - left)
acquired May 16, 2009 download large image (875 KB, JPEG, 2200x2800 - right)
Lingering Ice on Minnesota Lakes
acquired May 12, 2013 download large image (934 KB, JPEG, 2200x2800)
Lingering Ice on Minnesota Lakes
acquired May 16, 2009 download large image (875 KB, JPEG, 2200x2800)

When the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA’s Terra satellite passed over northern Minnesota on May 12, 2013, spring had transformed winter’s snowy white landscape into shades of green and brown. But several lakes remained stubbornly white. In 2013, unseasonably cool spring weather has left ice choking many of Minnesota’s lakes weeks longer than usual.

By mid-May, the lingering ice had broken or nearly broken numerous “ice-out” records. Through 2012, May 15 was the latest ice had ever persisted on Mille Lacs, the second largest lake in the state. In 2013, the lake still had ice on May 16; the median ice-free date for Mille Lacs is April 25. (Turn on the image comparison tool to see what the lake looked like in May 2009, a more typical year.)

Nearby Osakis Lake—which has ice-out records that extend back 144 years, the longest of any lake in the state—nearly broke its ice-out record as well. In 2013, Osakis went ice-free on May 13, just a day earlier than the record (which was set on May 14, 1950).

“It’s quite a contrast from last year, when we saw most lakes set record-early ice-out dates,” said Pete Boulay, Minnesota’s assistant state climatologist. “I’ve been scrambling to make sure that we get the ice-out dates nailed down and recorded accurately because this has shaped up to be a year that I suspect we will refer back to for decades.”

NASA image courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Adam Voiland.

Instrument(s): 
Terra - MODIS

Lingering Ice on Minnesota Lakes

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