SPC MD 68



MD 0068 CONCERNING HEAVY SNOW FOR SOUTHEAST MN…NORTHERN IA…WESTERN WI

MD 0068 Image


Mesoscale Discussion 0068
NWS Storm Prediction Center Norman OK
0120 PM CST Tue Feb 05 2019

Areas affected...Southeast MN...Northern IA...Western WI

Concerning...Heavy snow 

Valid 051920Z - 060015Z

SUMMARY...Multiple bands of heavy snow will continue to develop and
affect the discussion area this afternoon.  Snowfall rates exceeding
1 inch per hour are likely in localized areas.

DISCUSSION...Recent radar loop shows a developing band of moderate
to heavy snow developing from Brown/Nicollet counties of
south-central MN to near Eau Clair WI.  Several observation sites
within this band, including parts of the Minneapolis metro area, are
reporting moderate snow.  The expanding precipitation shield is
associated with a well-defined shortwave trough moving into NE, and
strengthening low-level warm advection indicated by local VAD
profiles.

This band is expected to slowly lift northeastward through the next
several hours, but will likely be replaced by an intensifying band
of heavy snow that is developing along the IA/MN border.  The result
will be multiple episodes of locally significant snowfall through
the afternoon across the discussion area.  Convective augmentation
of snowfall rates is likely, although lightning strikes are
uncertain.

..Hart.. 02/05/2019

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...DLH...ARX...MPX...DMX...FSD...

LAT...LON   45779151 45309050 44479069 43739247 43179428 43639526
            44939420 45779151 

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