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ACUS11 KWNS 061810
SWOMCD
SPC MCD 061809
LAZ000-TXZ000-ARZ000-061945-
Mesoscale Discussion 0264
NWS Storm Prediction Center Norman OK
0109 PM CDT Sat Apr 06 2019
Areas affected...Central/Southeast/East TX
Concerning...Tornado Watch 38...
Valid 061809Z - 061945Z
The severe weather threat for Tornado Watch 38 continues.
SUMMARY...Threat for all severe hazards, including tornadoes,
continues across central, southeast, and east TX.
DISCUSSION...Warm-air advection continues to promote thunderstorm
development across the warm frontal zone extending from central TX
into western/northwestern LA. This frontal zone currently remains
fairly diffuse, but the ongoing precipitation coupled with daytime
heating and continue low-level moisture advection should allow the
front to sharpen over the next few hours. Presently, the sharpest
portion of the frontal zone extends from Milam County
eastward-northeastward to Sabine County (delineated fairly well by
the 70 deg F isotherm).
Elevated thunderstorms continue along north of this boundary with
steep mid-level lapse rates and strong vertical shear supporting
updrafts and occasionally instances of hail and/or strong wind
gusts.
Threat for more surface-based convective will increase over the next
several hours as low-level moisture advection continues and forcing
for ascent persists. Low- to mid-level southerly winds are expected
to increase during this time as well. These factors will lead to a
higher tornado threat.
..Mosier.. 04/06/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...LCH...SHV...HGX...FWD...EWX...SJT...
LAT...LON 31729848 33299402 32719401 30969399 30209629 29429849
31369846 31729848
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