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SPC MD 20

MD 0020 CONCERNING HEAVY SNOW FOR NORTHEAST NE…SOUTHEAST SD…SOUTHERN MN

MD 0020 Image


Mesoscale Discussion 0020
NWS Storm Prediction Center Norman OK
0602 AM CST Tue Jan 03 2023

Areas affected...Northeast NE...Southeast SD...Southern MN

Concerning...Heavy snow 

Valid 031202Z - 031800Z

SUMMARY...An area of snow, with snowfall rates peaking in the 1 to 2
inches per hour range will continue in northern Nebraska. The
heavier bands will gradually develop northeastward across
southeastern South Dakota and southern Minnesota this morning.

DISCUSSION...Latest mosaic radar over the central and northern
Plains, shows a large area of precipitation from parts of
west-central Nebraska extending east-northeastward across northern
Nebraska into southeast South Dakota and northwest Iowa. Surface
temperatures are generally below freezing across Nebraska, where
most of the precipitation is in the form of snow. At upper levels, a
low is located over southern Nebraska with strong divergence present
from northeastern Nebraska into southern Minnesota. This, combined
with strong low-level convergence, will signal an area of enhanced
lift along and to the northwest of the upper low track. As a result,
isentropic lift will become maximized over the next few hours and
snowfall rates could exceed one inch per hour. A few lightning
strikes will be possible within the heavier bands. As the
upper-level low moves northeastward, heavy snow will develop
northeastward from parts of northeast Nebraska into southeastern
South Dakota and southern Minnesota early this morning.

..Broyles/Edwards.. 01/03/2023

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

ATTN...WFO...JKL...LMK...OHX...PAH...MEG...

LAT...LON   36188516 36648479 37158476 37398496 37538538 37608595
            37578652 37488698 37388750 37308779 37118817 36808841
            36488847 36368846 36048816 36008730 36008628 36028564
            36188516 

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