Severe Storm Outlook Narrative (AC)
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936
ACUS11 KWNS 282330
SWOMCD
SPC MCD 282330
TXZ000-290100-

Mesoscale Discussion 0359
NWS Storm Prediction Center Norman OK
0630 PM CDT Tue Mar 28 2017

Areas affected...Portions of southwest TX

Concerning...Severe Thunderstorm Watch 94...

Valid 282330Z - 290100Z

The severe weather threat for Severe Thunderstorm Watch 94
continues.

SUMMARY...The risk for severe storms continues across Watch 94.

DISCUSSION...The leading edge of strong ascent (marked by a shield
of midlevel clouds from high-based convection over the Trans-Pecos
region) will continue overtaking the western extent of Gulf moisture
within the next few hours. A line of strong to severe storms will
likely develop from parts of the Permian Basin vicinity to the Rio
Grande River vicinity, along a Pacific front overtaking a dryline
analyzed from Howard County to Brewster Country. East of the
dryline, moderate to strong instability amid 40-60 kt of effective
shear will support robust updrafts capable of severe winds and large
hail. Sufficient line-orthogonal low-level shear -- intensifying
into the evening hours -- may support line-embedded meso-vortices
yielding pockets of enhanced wind damage. A few supercell storms may
evolve ahead of the developing line across eastern parts of the
Permian Basin, capable of severe hail and wind.

..Cohen.. 03/28/2017

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

ATTN...WFO...EWX...SJT...MAF...

LAT...LON   29840236 30310243 31840169 32720136 32810086 32200072
            31780048 31100050 30520099 29810173 29840236




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