Subj : MESO: Mesoscale Discussion 0452
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Tue Apr 04 2023 11:47:29

ACUS11 KWNS 041147
SWOMCD
SPC MCD 041146=20
SDZ000-041215-

Mesoscale Discussion 0452
NWS Storm Prediction Center Norman OK
0646 AM CDT Tue Apr 04 2023

Areas affected...southwest into central SD

Concerning...Heavy snow=20

Valid 041146Z - 041215Z

SUMMARY...Heavy snowfall rates (1-2 inches per hour) will continue
into the mid morning aided by frontogenesis centered around 650 mb.

DISCUSSION...Radar mosaic during the past few hours has shown a
persistent band of heavier reflectivity from Fall River county
northeastward into Haakon and Stanley counties.  The higher
reflectivity (25-35 dBZ) is co-located with ZDR values near 0 and
likely indicates heavy snow.  Recent NWS Rapid City observations
indicate snowfall rates to the northwest of the heaviest rates were
ranging 1 to 1.5 inches per hour.=20=20

The latest short-term model guidance shows (06z run of the NAM)
shows frontogenetic forcing persisting within this
southwest-northeast oriented corridor through 15z (9am MDT).  The
model data indicates the frontogenesis will slowly move north and
roughly extend from near Rapid City east-northeastward towards
Aberdeen by 8am MDT.

...Smith.. 04/04/2023

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!7ZgQg9ZUe7XjfbVYVsCj7370j2V9a5UpXFvBylqZoo7tX2yAkUb1vmKSAyOyijB6F4LmKK2Ri=
FdSR6x6OIk_b0GSfP0$  for graphic product...

ATTN...WFO...ABR...UNR...

LAT...LON   44110287 44870138 44920090 44750069 44490076 43110329
            43120350 43240358 44110287=20


=3D =3D =3D
To unsubscribe from WX-STORM and you already have a login, go to
https://lists.illinois.edu and use the "Unsubscribe" link.  Otherwise email
Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

--- SBBSecho 3.14-Linux
 * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)

.