MD 0024 CONCERNING HEAVY SNOW FOR PARTS OF SOUTHEASTERN MN AND WESTERN WI
Mesoscale Discussion 0024
NWS Storm Prediction Center Norman OK
0123 PM CST Tue Jan 03 2023
Areas affected...Parts of southeastern MN and western WI
Concerning...Heavy snow
Valid 031923Z - 032330Z
SUMMARY...A band of heavy snow with rates up to 1 in/hr will
continue spreading northeastward across parts of southeastern MN
into western WI this afternoon.
DISCUSSION...Water-vapor imagery shows a closed mid-level low moving
slowly northeastward over eastern NE, with strong DCVA overspreading
a low-level baroclinic zone across MN and WI. The resulting
isentropic ascent/frontogenetic forcing is leading to a band of
heavy snow across parts of southeastern MN. Deep, saturated
thermodynamic profiles with strong ascent in the dendritic growth
zone should continue favoring heavy snowfall rates across
southeastern MN into western WI this afternoon. Snowfall rates up to
1 in/hr are expected with this snow band. Further south over
southern MN, warmer temperatures at 850 mb are yielding mixed winter
precipitation given sufficiently cold surface temperatures.
..Supinie/Weinman.. 01/03/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...GRB...DLH...ARX...MPX...
LAT...LON 44369208 44509353 44699496 44979543 45409548 45849374
46109226 46079129 45579060 44959029 44569098 44369208
