SPC MD 462
SPC MD 462
[html]MD 0462 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR EXTREME SOUTHERN TEXAS
Mesoscale Discussion 0462
NWS Storm Prediction Center Norman OK
0627 PM CDT Tue Apr 12 2022
Areas affected...extreme southern Texas
Concerning...Severe potential...Watch unlikely
Valid 122327Z - 130100Z
Probability of Watch Issuance...5 percent
SUMMARY...A cluster of storms moving out of northern Mexico may clip
portions of extreme south Texas before they move eastward into the
Gulf.
DISCUSSION...Evening radar imagery showed a cluster storms moving
out of northern Mexico along the south Texas Border. Likely driven
by weak height falls within a southern stream shortwave trough,
these storms may pose a risk for large hail and damaging winds as
they move east northeast over the next couple of hours. Deep gulf
moisture (dewpoints in the 70s F) and steep mid-level lapse rates
are supporting 4000 J/kg of MLCAPE, though weak CINH likely remains
owing to warm temperatures aloft. 35-45 kts of effective shear may
support storm organization and severe potential before storms move
east over the Gulf. While it is uncertain if these storms or any
development on the fringes may impact far south Texas, the expected
coverage should remain below that for the need of a weather watch.
..Lyons/Hart.. 04/12/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...BRO...
LAT...LON 25829713 25819742 25919777 25999830 26129860 26299873
26449861 26469815 26469776 26419723 26219710 26019709
25929710 25829713
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Source: SPC MD 462 (http://ht**://www.spc.noaa.gov/products/md/md0462.html)