Subj : MESO: Mesoscale Discussion 2053
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Wed Dec 21 2022 16:05:10

ACUS11 KWNS 211605
SWOMCD
SPC MCD 211604=20
WYZ000-211800-

Mesoscale Discussion 2053
NWS Storm Prediction Center Norman OK
1004 AM CST Wed Dec 21 2022

Areas affected...Portions of central and northwest Wyoming

Concerning...Snow Squall=20

Valid 211604Z - 211800Z

SUMMARY...Snow squalls are ongoing across northwest Wyoming and are
expected to persist as the front moves south through the day.

DISCUSSION...Several west-east oriented snow bands have developed in
the vicinity of a surface front across northwest Wyoming. The snow
bands south of the surface front are developing amid strong
low-level convergence and weak instability (50-100 J/kg MLCAPE per
SPC mesoanalysis). Bands north of the front are developing amid more
elevated instability and frontogenetical forcing. Nonetheless, these
bands are expected to persist through the day as the front drifts
southward.=20

While winds of 20-25 mph and moderate to heavy snow are leading to
some visibility restrictions south of the front, the greater
visibility restrictions are being observed north of the front.
Expect this trend to continue as temperatures plummet to -10 to -20F
and northerly winds develop amid falling snow. This arctic airmass
and drier snow should support greater visibility restriction.

...Bentley.. 12/21/2022

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!6XIi0OQRBeh9Vc8I29glHVDWBGBqErOpzMYagV8uARkqDVKGm_Aalb7GqoXQZswHQoDDGGrtP=
j-cHXYE8et3tBoQffQ$  for graphic product...

ATTN...WFO...UNR...CYS...BYZ...RIW...

LAT...LON   41781012 42011098 43521096 44330994 44720865 44920676
            44370640 43460553 42340579 41880779 41781012=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)

.