ACUS11 KWNS 210857
SWOMCD
SPC MCD 210856=20
TXZ000-211330-

Mesoscale Discussion 0046
NWS Storm Prediction Center Norman OK
0256 AM CST Tue Jan 21 2025

Areas affected...Portions of the Middle and Upper Texas Coast
Vicinity

Concerning...Winter mixed precipitation=20

Valid 210856Z - 211330Z

SUMMARY...A mix of sleet and light freezing rain/drizzle will remain
possible through daybreak. A gradual shift to snow (from north to
south) will also occur with time.

DISCUSSION...A mix of winter precipitation continues within and
north the Middle/Upper Texas Coast regions. Based on reported
precipitation and model sounding data, a mixture of sleet and
lighter freezing rain/drizzle is most likely. Given the presence of
steep lapse rates at cloud top (both noted in regional observed
soundings and model soundings), some convective elements are
possible and would be more efficient sleet producers. With time,
additional large-scale ascent will cool the atmospheric column such
that precipitation should continue to switch to all snow by daybreak
and beyond. Should freezing rain/drizzle linger, this is most likely
to be nearer the coast where the cold air may be shallow enough to
support it.

..Wendt.. 01/21/2025

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9PtHtFvSgkeb2QpVJU66KhJdeIJReRUmEdUcuidUIwZEh8n5X0jATAfem4jg7kpGRfOS7yDFG= QGqYH7uk7BI5zH4O2I$ for graphic product...

ATTN...WFO...HGX...CRP...EWX...

LAT...LON 28049692 27649732 27679765 27819799 28169817 29139788
29569711 30089523 30039480 29439466 28049692=20


=3D =3D =3D
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