Intense Frontogenetically Enhanced Snow
April 22 to 23, 2013
Snow started at 3:15 PM CST then became very heavy at 3:30 PM. A strong frontogenetically enhanced snow band dumped 7.0 inches in two hours from 3:30 PM to 5:30 PM at this observer's (DAK) location. Snow flake sizes frequently exceeded 1 inch diameter and briefly 3 inches diameter. Snow intensity decreased after 5:45 PM and continued as light to moderate snow through the evening, becoming very light after 12 AM, then flurries after 4:30 AM, ending 5:30 AM.
Heaviest snow fell from central Duluth to west Duluth and Proctor and also northwest out to the National Weather Service Office and Duluth International Airport. The area described received 8 to 12 inches total for the storm. The intensity of the snow dropped temperatures quickly from around 37 degrees at the start of the storm to near freezing. Some specific snow totals include DAK 11.3 and DLH 8.8.
Storm images compliments of the National Centers for Environmental Information
3:57 PM CST (2157 UTC) April 22, 2013
4:30 PM CST (2230 UTC) February 22, 2013