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SPC MD 462

SPC MD 462

[html]MD 0462 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR EXTREME SOUTHERN TEXAS
       
MD 0462 Image


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)