Posted at 5:25 PM on October 26, 2011
by Paul Huttner
Filed under: Land Hurricane 2010
It was a little windy last year at this time.
The October 2010 "Octobomb" or "Landicane" swept through Minnesota 1 year ago on October 26th-27th.
Record setting "Octobomb" low pressure winds up in Minnesota last October.
"At 5:13 pm on October 26th, a pressure of 955.2 mb* (28.21 inches of mercury) was observed at Big Fork, Minnesota, located in the north central part of the state. The previous record was 962.7 millibars (28.43"), set on November 10, 1998 at both Albert Lea, MN and Austin, MN."
The massive wind storm produced severe T-Storm strength wind gusts as high as 63 mph in Redwood Falls and Appleton, and gusts as high as 62 mph in the Twin Cities.
The system was unique in that two separate low pressure systems merged over Minnesota to create the deep intense record setting low. One low formed over northeast Colorado. A second low near the Black Hills in South Dakota merged with the Colorado low as they moved into Minnesota.
The merger of the two lows contributed to the intensification of the overall system.
Our quiet weather pattern this year is quite a contrast from the record setting low pressure of October 26-27 2010!
The images show the impacts of the storm in Grand Marais Harbor. The photos, taken Wednesday, show the effects of high waves and heavy surf pounding Grand Marais Harbor during the overnight and early morning hours early Wednesday.
Compare the above images with my image below taken in August.
The pounding surf took its toll on boats in Grand Marais Harbor Wednesday.
The "storm surge" also innundated the harbor breakwater at times. Check out the reference image I took below in August (of my son Luke) and the breakwater on a quieter day.
Comapre the above image with the Bryan Hansel photo from Wednesday.
As for wave heights, the western mid-lake bouy Station 45006 locatd 48NM North of Ironwood, MI. (about 50 mi SE of Grand Marais) recorded wave heights of nearly 19 feet at the height of the storm around daybreak Wednesday morning.
Waves reached at least 26 feet in eastern Lake Superior at the buoy Wednesday on Slate Island near the Ontario shore.
It is reasonable to infer that waves of at least 10 to 15+ feet pounded Grand Marais Harbor Tuesday night and Wednesday.
Pretty amazing stuff for the Land Hurricane of 2010!