Storm Summary: Snowfall Amounts & Wind Gusts

   

Storm Summary
The heaviest snow, of generally 8-12 inches, was found along a line from Brainerd to Mille Lacs Lake and Hinckley in Minnesota, then east to Hayward and Park Falls in Wisconsin. Sarona and Hayward, in northern Wisconsin, bother reported 14 inches of snow.

Although the Duluth/Superior Area was missed by the heavy snow, intense winds and periods of blizzard conditions pounded the Twin Ports region through Tuesday night, March 22nd. The Duluth, Superior & Cloquet Airports reported winds gusts in the 40-50 mph range Tuesday afternoon through Wednesday Morning, reaching levels of a severe thunderstorm. Several communities in and around the Twin Ports reported power outages through Tuesday evening.

A MNDOT weather station on the Blatnik Bridge was gusting well into the 60-65 mph range through the night with a peak wind of 70 mph.  At noon on Wednesday, this station was still gusting to 60 mph.

Peak Wind Gusts
Blatnik Bridge/Duluth......70 mph 
Duluth Airport..................56 mph 
Cloquet, M
N.....................51 mph 
Superior, WI......................47 mph 
Park
Pointe/Duluth...........51 mph
Sky Harbor/Duluth...........56 mph
Two Har
bors, MN............51 mph

Grand Maris, MN.............43 mph

Silver Bay, MN.................43 mph
Maple, WI.........................50 mph
Ashland, WI.....................40 mph

Preliminary Snowfall Reports
2011 March 22-23
(Click on Image for larger Map)
 
View the List of Snowfall Reports issued by the National Weather Service in Duluth.  If you would like to submit a snowfall report, call the National Weather Service in Duluth at 218-729-6697. We appreciate any snowfall reports!
Why wasn't there more snow around Duluth?

During this storm, the Northland was situated between very dry air associated with high pressure over Canada, and low pressure with lots of moisture over Iowa. The contrast led to a sharp cut-off in snowfall. The dry air was able to push the storm track slightly further south, resulting in the heavy snow being found just a county or so further south that expected. However, even the light snowfall resulted in Blizzard conditions at times in the communities of West Duluth, Superior, Proctor and Cloquet when combined with the 50-60 mph wind gusts.

What is a Blizzard?
You can have blizzard conditions with very little falling snow. A blizzard is the combination of sustained winds or frequent gusts ≥35 mph and falling or blowing snow that reduces visibilites to less than a quarter mile for 3 hrs or longer.

 
   

 

 

 

 

images/dlh/StormSummaries/2011/stormtotals_2011march22.pdf



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