ZCZC SPCSWOMCD ALL
ACUS11 KWNS 181851 
SPC MCD 181851 
TXZ000-182145-

Mesoscale Discussion 0123
NWS Storm Prediction Center Norman OK
1251 PM CST Thu Feb 18 2021

Areas affected...southern Val Verde ...Kinney...and Uvalde counties
in Texas

Concerning...Heavy snow 

Valid 181851Z - 182145Z

SUMMARY...A narrow band of heavy snow continues across southern Val
Verde, Kinney, and Uvalde counties in Texas. This band will
gradually weaken through the afternoon.

DISCUSSION...A band of heavy snow has become narrower, but heavy
snowfall rates remain within this corridor from Del Rio, Texas
eastward. Snowfall rates as high as 3 inches per hour have been
reported in Del Rio this morning. Frontogenesis has started to
weaken across the area, which is likely responsible for the
narrowing corridor of the heaviest snow rates. As frontogenesis
continues to weaken, snowfall rates will continue to lower, but 1+
inch per hour snowfall rates could persist through mid to late
afternoon beneath the heaviest portions of the band. The heaviest
snowfall rates will likely remain near Del Rio where significant
snowfall totals have already been reported.

..Bentley.. 02/18/2021

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...EWX...

LAT...LON   29540126 29610096 29550029 29549999 29429976 29279974
            29149986 29080018 29100044 29200073 29220095 29260103
            29540126 

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