ACUS11 KWNS 181510
SWOMCD
SPC MCD 181509=20
MNZ000-SDZ000-NDZ000-182015-

Mesoscale Discussion 2259
NWS Storm Prediction Center Norman OK
0909 AM CST Thu Dec 18 2025

Areas affected...The Eastern Dakotas into west and northwest
Minnesota

Concerning...Blizzard=20

Valid 181509Z - 182015Z

SUMMARY...Blizzard conditions are expected to continue across parts
of the eastern Dakotas and into parts of west/northwest MN through
early/mid afternoon.

DISCUSSION...Latest surface observations and web cams from southeast
SD northward through the Red River Valley of the north show
widespread visibility reductions to 1/4 mile or less with some areas experiencing white out conditions - especially across northeast ND
into northwest MN where moderate to heavy snowfall rates are
contributing to the visibility reductions under a developing snow
band. Heading through the afternoon, the strongest push of low-level
cold advection should migrate from the eastern Dakotas into southern MN/northern IA. Although the heaviest snowfall will likely shift
eastward into northern MN through the day, light snow and persistent
strong northerly winds will continue to support blizzard conditions
through the Red River Valley through at least mid-afternoon and
possibly until around 00z. Further south/southeast, the antecedent
snow pack is not as widespread compared to locations further north,
but a combination of light to moderate snowfall and intense surface
winds (gusting between 40-50 mph) will likely contribute to areas of
blizzard conditions into west/southwest MN.

..Moore.. 12/18/2025

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5FVNOzknPrp7I9KIUSAYrZrzRBVdqBcSKF9iijda881Uu-J1maLduK1Z6tRuekFAuZ_RltzNn= Um8P1xa-fjpp3Kez7M$ for graphic product...

ATTN...WFO...MPX...FGF...FSD...ABR...BIS...

LAT...LON 45379439 44949441 44709454 44459491 44249551 44169600
44199677 44309723 44579749 45039785 45599814 45949836
46839890 48129916 48699904 48959878 49069819 49059675
49029527 48549520 47799538 47109550 46189521 45379439=20


=3D =3D =3D
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