Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 300438
SWOMCD
SPC MCD 300437
ARZ000-LAZ000-TXZ000-300530-

Mesoscale Discussion 0603
NWS Storm Prediction Center Norman OK
1137 PM CDT Sat Apr 29 2017

Areas affected...Northeast TX to Central AR

Concerning...Severe Thunderstorm Watch 178...

Valid 300437Z - 300530Z

The severe weather threat for Severe Thunderstorm Watch 178
continues.

SUMMARY...Severe wind gusts and hail remain possible with
thunderstorms across WW178.

DISCUSSION...Widespread convection continues across western/northern
AR late this evening reflecting the southern-most extent of
expansive, long-lived precip event that is centered over MO.
Isolated hail and gusty winds continue with the strongest storms
that are embedded along the southern flank of this MCS.  Over the
next few hours thunderstorms should increase along the cold front as
it progresses into the lower MS Valley region as large-scale forcing
for ascent appears to be approaching the I-35 corridor, per deep
convection developing from portions of the Hill Country into
northwest TX.  Convection is gradually deepening across southeast TX
and immediately behind the front over northeast TX...possibly in
response to this large-scale forcing.  For these reasons it appears
storms should increase in areal coverage after midnight across
WW178.

..Darrow.. 04/30/2017

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

ATTN...WFO...MEG...LZK...LCH...SHV...HGX...

LAT...LON   31329531 35579325 35569094 31339308 31329531



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