Subj : MESO: Mesoscale Discussion 0487
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Wed Apr 05 2023 18:02:43

ACUS11 KWNS 051802
SWOMCD
SPC MCD 051802=20
NDZ000-052200-

Mesoscale Discussion 0487
NWS Storm Prediction Center Norman OK
0102 PM CDT Wed Apr 05 2023

Areas affected...Portions of central and eastern North Dakota

Concerning...Blizzard=20

Valid 051802Z - 052200Z

SUMMARY...Localized blizzard conditions are expected across portions
of central and eastern North Dakota through the remainder of the
afternoon.

DISCUSSION...On the backside of a deep/vertically stacked
low-pressure system centered over the Upper MS Valley, surface
observations and regional VWP data show strong deep-layer
northwesterly winds overspreading North Dakota this afternoon.
During the next couple of hours, strengthening winds (around 40 kt
in the boundary layer) will support frequent gusts upwards of 35-40
mph. These gusts, combined with sufficiently cold surface
temperatures and ongoing light/moderate snow (and antecedent
snowpack) will favor localized blizzard conditions through the
remainder of the afternoon. Blowing snow model output suggests that
35+ mph gusts will support blizzard conditions in rural areas, with
localized blizzard conditions also possible in more urbanized
areas/towns with frequent gusts of 40+ mph.

...Weinman.. 04/05/2023

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!-K_jOfSFq9lWWumhkRcvPcx7rMBqEbt6ud5rK26ZbMuORLDEygYeOZDg8WUXp74pxUZF8c2On=
JlvxGhhuC2VzeeW4pA$  for graphic product...

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

LAT...LON   47840097 48480124 49050125 49120034 49109896 48909848
            48449827 47829799 46759751 46189732 45969767 45969832
            46019971 46380016 47070054 47840097=20


=3D =3D =3D
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