Minnesota's Lake Ice-Out Status as of May 4, 2007

The definition of lake ice-out varies from lake to lake, and individual to individual. For some, ice-out occurs only when the lake is completely free of ice. For others, ice-out is defined as the moment when navigation is possible from point A to point B. And yet for others, ice-out is when 90 percent of the lake is ice free. Due to the variable definitions of this rather subjective observation, the State Climatology Office attempts to contact the same individuals each year to maintain a consistent record. The table below will depict 2007 information obtained from this informal poll. The table is updated on Mondays. Here is a description of how lake ice melts.

On clear days, it is possbile to discern ice-covered lakes from satellite imagery. A satellite image from 11:32 AM, Thursday, April 12 shows that lakes south of a line from Alexandria to Hinckley are mostly free of ice (see: latest satellite image).

With the last stubborn ice leaving Rainy Lake and Saganaga on May 4th, all lakes in Minnesota are now free of ice.

Historical averages and extremes have been calculated for lakes in highlighted in green.

Name County Status
Bronson Kittson out 4-22
Cormorant Becker out 4-25
Detroit Becker out 4-21
Red (Lower) Beltrami out 4-29
Sallie Becker out 4-21
North Central
Name County Status
Bemidji Beltrami out 4-27
Kabetogama St. Louis out 4-30
L. of the Woods LOW out 5-3
Leech Cass out 4-25
Pokegama Itasca out 4-25
Rainy Kooch. out 5-4
Winnibigoshish Cass/Itas. out 4-27
Name County Status
Fall Lake out 4-25
Greenwood Cook out 5-3
Gunflint Lake out 5-1
Island St. Louis out 4-27
Saganaga Cook out 5-4
Shagawa St. Louis out 4-26
Snowbank Lake out 4-29
Sturgeon St. Louis out 4-26
Vermilion St. Louis out 4-29
Wolf Lake out 4-26
West Central
Name County Status
Artichoke Big Stone out 3-30
Big Stone Big Stone out 3-30
Blanche Ottertail out 4-19
Minnewaska Pope out 4-2
Osakis Todd out 4-19
Ottertail Ottertail out 4-23
Traverse Traverse out 3-30
West Battle Ottertail out 4-21
Name County Status
Fish Trap Morrison out 4-18
Green Kandiyo. out 4-11
Gull Cass out 4-22
East Central
Name County Status
Big Sandy Aitkin out 4-22
Calhoun Hennepin out 3-29
Forest Washing. out 3-31
Gervias Ramsey out 3-27
Harriet Hennepin out 3-28
Kohlman Ramsey out 3-26
Knife Kanabec out 4-18
Medicine Hennepin out 3-30
Mille Lacs M. Lacs out 4-28
Minnetonka Hennepin out 4-3
Phalen Ramsey out 3-27
Rush Chisago out 4-11
Waconia Carver out 4-1
White Bear Ramsey out 3-31
Name County Status
Bingham Cottonwood out 3-26
Lime Murray out 3-27
Okabena Nobles out 3-26
Sarah Murray out 3-27
Shetek Murray out 3-26
South Central
Name County Status
Albert Lea Freeborn out 3-26
Budd Martin out 3-27
Clear Waseca out 3-27
Fountain Freeborn out 3-27
Loon Waseca out 3-26
Sakatah Le Seuer out 3-26
Shields Rice out 3-26
Swan Nicollet out 3-24
Tetonka Le Sueur out 3-28
Name County Status
Cannon Rice out 3-26
Pepin Wabasha out 3-24
Zumbro Olmsted out 3-26


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URL: http://climate.umn.edu/doc/ice_out/ice_out_status_07.htm
Last modified: May 4, 2007