ZCZC SPCSWOMCD ALL
ACUS11 KWNS 051925 
SPC MCD 051925 
LAZ000-TXZ000-052130-

Mesoscale Discussion 0989
NWS Storm Prediction Center Norman OK
0225 PM CDT Wed Jun 05 2019

Areas affected...southeast Texas and southwest Louisiana

Concerning...Severe potential...Watch unlikely 

Valid 051925Z - 052130Z

Probability of Watch Issuance...20 percent

SUMMARY...A couple of brief tornadoes are possible this afternoon
and early evening over the southeast Texas and southwest Louisiana
coast. A ww will probably not be necessary unless convective and
mesoscale trends begin to suggest a more robust threat.

DISCUSSION...This afternoon an area of low pressure with tropical
characteristics has moved inland to just west of the Houston
Galveston area. East of the center of circulation, a moist boundary
layer with dewpoints in the low 70s have spread inland, but
widespread clouds and showers are resulting in moist adiabatic lapse
rates and limiting MLCAPE to below 500 J/kg. Nevertheless, a few
stronger storms with supercell characteristics remain offshore, and
a couple of these have moved inland before weakening. VWP from
Houston has shown an increase in low-level shear near the coast with
veering profiles and 0-1 km storm relative helicity around 200 m2/s2
for north-moving storms. This environment will continue to support
mini supercells developing within the convergence bands offshore
before spreading inland and weakening. In the process a couple of
brief tornadoes will remain possible, mainly within a few miles of
the coast.

..Dial/Hart.. 06/05/2019

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...LCH...HGX...

LAT...LON   28729508 29269561 30059506 30289335 29519298 29149423
            28729508 

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