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Mesoscale Discussion 390 |
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Mesoscale Discussion 0390
NWS Storm Prediction Center Norman OK
1059 PM CDT Mon Apr 08 2024
Areas affected...TX Permian Basin vicinity
Concerning...Severe potential...Watch possible
Valid 090359Z - 090630Z
Probability of Watch Issuance...60 percent
SUMMARY...Severe thunderstorm development will be possible
overnight, with a threat of large hail.
DISCUSSION...Low-level moisture continues to stream northwestward
late this evening into portions of the TX Permian Basin region.
Meanwhile, WV and IR imagery suggests that ascent related to the
deep upper-level trough over the Southwest is beginning to
overspread the region. While timing remains uncertain, storm
development will become increasingly likely overnight, especially
near/north of a southward-moving cold front. Steep midlevel lapse
rates, MUCAPE increasing into the 1000-2000 J/kg range, and
effective shear of 40+ kts will support elevated supercell
potential, with an attendant threat of large hail in the 1.5 - 2
inch diameter range.
Severe-storm coverage remains somewhat uncertain overnight and could
remain rather isolated, but eventual watch issuance is possible
given the potential for elevated supercells.
..Dean/Hart.. 04/09/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...SJT...LUB...MAF...
LAT...LON 32360300 32700297 33040291 33200177 33110124 32510060
31860073 31130112 30860168 30770276 31710295 32360300
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