|Mesoscale Discussion 1036|
< Previous MD Next MD >
Mesoscale Discussion 1036
NWS Storm Prediction Center Norman OK
0756 PM CDT Wed Jun 14 2017
Areas affected...Portions of west/northwest TX into southwestern OK
Concerning...Severe Thunderstorm Watch 331...
Valid 150056Z - 150230Z
The severe weather threat for Severe Thunderstorm Watch 331
SUMMARY...An isolated large hail and damaging wind threat continues
across WW 331 this evening.
DISCUSSION...Isolated thunderstorms initiated across west TX this
afternoon along a dryline, and quickly became severe with strong
instability and sufficient deep-layer shear present across this
region. Subsequent evolution of thunderstorms over the past several
hours has tended towards several splitting supercells and small
bowing clusters. One such cluster moved across the Midland/Odessa TX
area, producing measured 64 mph winds and 1.5-2 inch diameter hail.
00Z sounding from Midland TX shows strong MLCAPE around 2250 J/kg,
which will easily support ongoing thunderstorms. Although a weakness
in the mid-level flow is noted around 700 mb, strengthening winds
from 600 mb to the tropopause is supporting around 45 kt of 0-6 km
shear. Ongoing multicell clusters and isolated supercells will
continue to pose a large hail and damaging wind threat for at least
the next several hours. By late evening, increasing convective
inhibition owing to the loss of daytime heating should result in the
weakening of ongoing convection. The severe threat across northern
portions of WW 331 remains conditional, and recent visible satellite
imagery indicates a general lessening of the cumulus field with
northeastward extent (into southwestern OK). Still, a left-split
supercell over Kent County TX as of 0055Z may pose an isolated
severe threat as it moves northeastward.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 30150333 31660334 35409992 35429863 34169863 30000252
Top/All Mesoscale Discussions/Forecast Products/Home