ZCZC SPCSWOMCD ALL
ACUS11 KWNS 100121 
SPC MCD 100121 
TXZ000-OKZ000-100415-

Mesoscale Discussion 0354
NWS Storm Prediction Center Norman OK
0821 PM CDT Fri Apr 09 2021

Areas affected...parts of north Texas

Concerning...Severe Thunderstorm Watch 82...

Valid 100121Z - 100415Z

The severe weather threat for Severe Thunderstorm Watch 82
continues.

SUMMARY...Sporadic cells capable of large hail remain possible
within WW 82. A squall line is expected to back build southwestward
along the front later this evening, with damaging wind potential
into north Texas.

DISCUSSION...The 00Z FWD sounding shows strong instability, with
very steep lapse rates aloft and around 3500 J/kg MLCAPE. The
hodograph is mostly straightline, supporting splitting cells in the
Dallas area.

A strong cold front is currently surging southeast across southern
OK and into northwest TX. A squall line is taking shape over
southern OK, and further back building is expected as the strong
convergence interacts with the more unstable air mass south of the
Red River. Therefore, in addition to a hail threat in the short
term, a damaging wind threat may take shape over the next several
hours. It is difficult to determine how far southwest the squall
line will build, but portions of the I-35 corridor may be at risk
this evening.

..Jewell.. 04/10/2021

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

ATTN...WFO...SHV...TSA...FWD...OUN...

LAT...LON   31449788 32719731 33449692 33959680 34149637 34099567
            33829523 32859547 31869575 31519628 31219703 31129752
            31449788 

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