MD 2278 CONCERNING HEAVY SNOW FOR NORTH CENTRAL IOWA…SOUTHERN AND EASTERN MINNESOTA AND NORTHWESTERN WISCONSIN
Mesoscale Discussion 2278
NWS Storm Prediction Center Norman OK
0952 AM CST Sun Dec 28 2025
Areas affected...North central Iowa...southern and eastern Minnesota
and northwestern Wisconsin
Concerning...Heavy snow
Valid 281552Z - 282145Z
SUMMARY...Heavy snow, with rates near 1 inch per hour, is expected
to develop by midday in east central Minnesota and northwest
Wisconsin. Occasional blizzard conditions are expected into
southern Minnesota and northern Iowa.
DISCUSSION...Gradual erosion of a warm nose (noted in the 12z MPX
sounding) will continue through the afternoon from eastern MN into
northwest WI as a result of strengthening ascent and
cooling/saturation of profiles to the northwest of a deepening
cyclone now near the IA/MO/IL border. Near-surface cooling from
northwest-to-southeast will become more favorable for
accumulating/heavy snow from east central MN into northwest WI
within the primary deformation band, while snowfall rates will be
lower farther southwest into southern MN/northern IA. However, a
strengthening pressure gradient and rapidly falling temperatures
into the teens/single digits will result in blowing snow and
blizzard conditions (frequent gusts 35-50 mph with visibility
reduced to 1/4 mi or less) from southern MN/northern IA through the
afternoon.
..Thompson.. 12/28/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DLH...ARX...MPX...DMX...FSD...
LAT...LON 44149300 43569311 43169339 42899399 42959490 43549539
44319536 45199483 46129356 46609234 46829155 46809116
46409115 46039152 45179278 44709305 44149300
