Mesoscale Discussion 1756
NWS Storm Prediction Center Norman OK
0541 AM CDT Mon Oct 26 2020
Areas affected...TX Panhandle...Western/Central
OK...South-Central/Southeast KS
Concerning...Winter mixed precipitation
Valid 261041Z - 261445Z
SUMMARY...Mixed winter precipitation, including sleet, will continue
for the next several hours from the southern TX Panhandle through
western/central OK and into south-central KS. Lightning and
relatively high precipitation may occur within the stronger cells.
DISCUSSION...Regional radar imagery has shown an increase in
precipitation coverage over the last few hours. This increase is
likely the result of persistent isentropic ascent across the shallow
front as well as strengthening large-scale ascent attendant to an
approaching shortwave trough. Thus far, a predominantly banded
precipitation structure has been observed, but radar trends across
the east-central and southeast TX Panhandle suggest a transition to
a more uniform precipitation shield may be occurring. Elevated
instability has contributed to lightning within a few of these
bands, particularly on the leading edge of the precipitation
(currently from SNK northeastward through TUL and into far southeast
KS).
Given the expectation for continued ascent across the front and the
radar trends suggesting higher precipitation coverage, the potential
for freezing rain and sleet will continue from the southern TX
Panhandle across western/central OK into south-central/southeast KS.
Modest instability will contribute to occasionally stronger
convection capable of lightning and relatively high precipitation
rates throughout the morning.
..Mosier.. 10/26/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...TSA...ICT...OUN...DDC...LUB...AMA...
LAT...LON 35210211 37039936 37999711 36859597 35389806 33900070
33120218 35210211
Read morefrom SPC Forecast Products http://www.spc.noaa.gov/products/md/md1756.html
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