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Mesoscale Discussion 0455
NWS Storm Prediction Center Norman OK
0141 PM CDT Tue Apr 12 2022

Areas affected...portions of ND

Concerning...Blizzard 

Valid 121841Z - 122345Z

SUMMARY...Blizzard conditions will continue across much of North
Dakota into this evening. Heavy snow bands may produce rates as high
as 2-3 inches per hour at times.

DISCUSSION...Blizzard conditions will continue across western ND and
have spread eastward this afternoon into portions of central/eastern
ND. Moderate to heavy snow has been widespread and is occurring
within a zone of intense warm advection and frontogenesis around 700
mb. Persistent ascent through a deep (greater than 1200 m) dendritic
growth zone will support snowfall rates around 2-3 inches per hour
within heavy snow bands embedded within the broader precipitation
area. An intense surface pressure gradient across ND/SD associated
with a deepening surface low over NE also continue to support
northeasterly surface winds around 20-30 mph with higher gusts,
resulting in blizzard conditions and extremely poor visibility.
These conditions should persist into this evening.

..Leitman.. 04/12/2022

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

ATTN...WFO...FGF...BIS...

LAT...LON   46470033 46140177 46060218 46020270 46030299 46230350
            46520377 46780388 47100381 47480355 47770285 48160174
            48270111 48389983 48459892 48339796 48049746 47909738
            47479736 47299737 47149755 46869854 46470033