Mesoscale Discussion 0401
NWS Storm Prediction Center Norman OK
0944 AM CDT Sun Apr 02 2017
Areas affected...south central through southeast Texas
Concerning...Tornado Watch 108...
Valid 021444Z - 021645Z
The severe weather threat for Tornado Watch 108 continues.
SUMMARY...Threat for tornadoes will persist in ww 108 through the
morning from south central through a part of southeast TX with
greatest near-term tornado threat across that part of southeast TX
including the northern part of the Houston county warning area.
Otherwise, damaging wind and large hail are also likely with the
stronger storms.
DISCUSSION...Greatest near-term tornado threat appears to be with
discrete supercells over the northern part of the Houston county
warning area where surface-based storms are interacting with the
favorably sheared environment, and large 0-1 km hodographs exist in
vicinity of the warm front. Farther west a squall line from near
Lampasas to just east of Cotulla is advancing east at 30 kt. While
damaging wind remains the primary threat with the line, QLCS
tornadoes with embedded meso-vortices are possible as this activity
continues east. Primary zone of deeper ascent along and north of the
upper jet axis should remain well inland of the south TX coast. The
12Z raob from Corpus Christi indicates a strong cap in place which
will likely persist. While the southern portion of the line will
likely continue to affect the northern part of the Corpus Christi
CWA, current indications are that the line will struggle to develop
much farther south which should precluded the need for a WW issuance
across south TX.
..Dial.. 04/02/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...SHV...HGX...FWD...CRP...EWX...
LAT...LON 28319835 29439784 30249769 31019691 31969514 30659487
29989588 28319835
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