2nd Anniversary of the Great Storm of Oct 26, 2010

Only two years ago a record-setting storm crossed the state. It was a strong, winter-type mid-latitude cyclone that encompassed much of the USA landscape, with a central low pressure core that passed directly across northern Minnesota. A number of weather observers reported new low barometric pressure readings, including 28.36 inches at Duluth, 28.23 inches at International Falls, and a statewide record of just 28.21 inches at Bigfork, MN (Itasca County), equivalent to a Category 3 hurricane. With such low pressure came extreme winds. Wind gusts of 60-65 mph were reported from any locations in the state, as well as in Wisconsin and Ontario, Canada. Wind-driven waves reached 26 feet at Campbell’s Point on the northeast side (Canada) of Lake Superior. Fortunately all shipping on the lake had found safe port or harbor. In satellite image of the Earth that day, this storm was the single largest atmospheric disturbance visible, dwarfing Typhoon Chaba in the Western Pacific in scale.

Record amounts of rainfall and snowfall were reported as well from this storm. Some of the record amounts of precipitation included:

3.49 inches at Two Harbors, 3.11 inches at Brainerd, 2.94 inches at Duluth AP, 2.91 inches at Cloquet, 2.79 inches at Moose Lake, 2.62 inches at Hibbing, 2.42 inches at Brimson, 2.02 inches at Mahnomen, and 2.00 inches at Thorhult. Some of the snowfall amounts included 5.0 inches at Brimson, 7 inches at Island Lake, and 7.7 inches at Duluth and Two Harbors.