|Mesoscale Discussion 1046|
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Mesoscale Discussion 1046
NWS Storm Prediction Center Norman OK
0545 PM CDT Thu Jun 15 2017
Areas affected...Western Oklahoma and much of the Texas Panhandle
Concerning...Severe Thunderstorm Watch 333...
Valid 152245Z - 152345Z
The severe weather threat for Severe Thunderstorm Watch 333
SUMMARY...The severe threat continues across WW 333.
DISCUSSION...Isolated-to-scattered convective activity has evolved
across WW 333 ahead of a dryline located from near DDC in
southwestern Kansas to AMA to HOB in southeastern New Mexico. A
strongly unstable pre-convective airmass - supported by very steep
tropospheric lapse rates, 60s to low 70s dewpoints, and 90s F
surface temperatures - is supporting a risk of large hail (perhaps
significant) and damaging wind gusts with this activity. Enough
deep shear exists for some storm organization (including occasional
supercell structures) although weaknesses in the low- and mid-level
kinematic fields are supporting mostly outflow dominant storms.
Some southeastward propagation of these storms is observed via radar
and satellite observations. The outflow-dominant nature of these
storms may allow for localized linear segments to develop as these
storms propagate southeastward over the next 1-2 hours, perhaps
enhancing the existing damaging wind potential with this activity.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 37030014 37099903 37049827 36819807 36219834 34909897
33719993 33160022 32980104 32930218 33000281 33090299
33860274 35400202 36190118 37030014
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