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Mesoscale Discussion 562 |
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Mesoscale Discussion 0562
NWS Storm Prediction Center Norman OK
1020 PM CDT Sun Apr 24 2022
Areas affected...West-central Texas
Concerning...Severe Thunderstorm Watch 154...
Valid 250320Z - 250500Z
CORRECTED WORDING
The severe weather threat for Severe Thunderstorm Watch 154
continues.
SUMMARY...A severe threat will likely continue across parts of
west-central Texas over the next few hours. Large hail and wind
damage will be the primary hazards. The severe threat should
gradually become more isolated late this evening. New watch issuance
appears unlikely.
DISCUSSION...The latest high-resolution radar from Del Rio has a
small cluster of severe thunderstorms about 70 statute miles
southwest of San Angelo. The storms are located along an
east-to-west front where low-level convergence is maximized. Surface
dewpoints in the lower 60s F to the south of the boundary are
contributing to moderate instability, with the RAP estimating MLCAPE
in the 2000 to 2500 J/kg range. In addition, an upper-level trough
is evident on water vapor imagery over the southern Rockies
extending southward into far West Texas. Large-scale ascent and
moderate deep-layer shear associated with the trough will support
continued thunderstorm development over parts of west-central Texas
late this evening. The deep-layer shear combined with steep
mid-level lapse rates will support large hail with storms that can
maintain supercell structure. Wind damage will also be possible, but
any threat should gradually become more isolated late this evening.
..Broyles.. 04/25/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...EWX...SJT...
LAT...LON 31070098 30660145 30120149 29860129 29750098 29870049
30359999 30829977 31260045 31070098
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