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ACUS11 KWNS 240450
SWOMCD
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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