ZCZC SPCSWOMCD ALL
ACUS11 KWNS 240450 
SPC MCD 240450 
TXZ000-240615-

Mesoscale Discussion 0430
NWS Storm Prediction Center Norman OK
1150 PM CDT Tue Apr 23 2019

Areas affected...Parts of the Edwards Plateau

Concerning...Severe Thunderstorm Watch 97...

Valid 240450Z - 240615Z

The severe weather threat for Severe Thunderstorm Watch 97
continues.

SUMMARY...Severe hail may continue another couple of hours, along
with potential for increasing damaging winds, in association with a
supercell approaching the San Angelo vicinity through 2-3 AM CDT.

DISCUSSION...Conglomerate outflow associated with increasingly
extensive convective development has gradually advanced southward
into the Edwards Plateau region during the past few hours.  This is
providing a continuing focus for strong low-level convergence,
enhanced by modest to weak southeasterly low-level flow beneath a
possible 50 kt west-southwesterly mid-level speed maximum
propagating into/through the region.

This configuration is contributing to moderately strong easterly
storm-relative inflow of moist and moderately unstable air (CAPE of
1000-1500 J/kg) into a sustained supercell emerging from southwest
Texas.  MRMS-MESH data indicates that this storm is probably still
producing severe hail.  As it progresses eastward there appears
potential for interaction with the outflow boundary that may lead to
a transition increasingly supportive of a corridor of strong wind
gusts, and eastward acceleration into the San Angelo vicinity
through 07-08Z.

..Kerr.. 04/24/2019

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

ATTN...WFO...SJT...MAF...

LAT...LON   31550187 31720124 31650030 31040035 30900105 30850184
            31080207 31550187 

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