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Mesoscale Discussion 547 |
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Mesoscale Discussion 0547
NWS Storm Prediction Center Norman OK
0614 PM CDT Sun May 05 2019
Areas affected...west Texas
Concerning...Severe Thunderstorm Watch 132...133...
Valid 052314Z - 060045Z
The severe weather threat for Severe Thunderstorm Watch 132, 133
continues.
SUMMARY...Isolated supercells capable of producing very large hail,
locally damaging wind gusts and isolated tornadoes will persist next
few hours.
DISCUSSION...Early this evening isolated storms that developed along
the dryline have matured across west Texas with several supercells
in progress. The atmosphere in this region is strongly unstable with
2000-3000 J/kg MLCAPE, steep mid level lapse rates and
effective-bulk shear of 40-50 kt. The Lubbock VWP adjusted for
southeast winds south of the outflow boundary indicate sufficient
0-1 km storm relative helicity for low-level mesocyclones, and
further enlargement of the hodograph is likely as the low-level jet
increases. These factors along with unimpeded moist inflow suggest
the supercell south of Lubbock might remain capable of producing
occasional tornadoes during the next hour. With time, storm and
outflow boundary interactions may contribute to some upscale growth
to lines and clusters as activity develops east.
..Dial.. 05/05/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...SJT...LUB...AMA...MAF...
LAT...LON 30390369 32370286 33790256 35540247 36320205 36540074
35080021 32360073 29930256 30390369
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