MD 0404 CONCERNING TORNADO WATCH 110… FOR PORTIONS OF FAR EAST TEXAS INTO CENTRAL LA
Mesoscale Discussion 0404
NWS Storm Prediction Center Norman OK
0206 PM CDT Sun Apr 02 2017
Areas affected...Portions of far east Texas into central LA
Concerning...Tornado Watch 110...
Valid 021906Z - 022000Z
The severe weather threat for Tornado Watch 110 continues.
SUMMARY...The risk for significant tornadoes is increasing across
Particularly Dangerous Situation Tornado Watch 110.
DISCUSSION...Echo tops in association with supercell clusters and
quasi-linear convective segments containing embedded supercells have
exhibited notable increasing trends per radar imagery. This activity
is intensifying within a warm advection plume preceding a midlevel
shortwave trough spreading across Texas. Pressure falls have been
increasing in magnitude within the open warm sector from parts of
the lower Sabine Valley eastward through central LA, south of a warm
front analyzed from south of Shreveport to north of Alexandria LA.
This suggests that increasing deep ascent will continue to encourage
convective sustenance/intensification. The VAD wind profile at POE
indicates a substantially curved hodograph in the lowest 3 km above
ground, with around 400 m2/s2 of 0-1-km SRH. Rotating updrafts will
remain likely as convection spreads eastward/east-northeastward
across the region. The risk for significant tornadoes is increasing,
along with damaging winds and severe hail.
..Cohen.. 04/02/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...JAN...LCH...SHV...
LAT...LON 30959406 31779396 32029347 32159279 31999237 31709188
31349178 31179208 30969289 30819345 30959406
from SPC Mesoscale Discussions http://bit.ly/2nLIX6g
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