Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 261659
SWOMCD
SPC MCD 261658
LAZ000-ARZ000-TXZ000-261930-

Mesoscale Discussion 0528
NWS Storm Prediction Center Norman OK
1158 AM CDT Sat May 26 2018

Areas affected...From the Sabine river across central and northern
Louisiana and far southeast Arkansas

Concerning...Severe potential...Watch unlikely

Valid 261658Z - 261930Z

Probability of Watch Issuance...5 percent

SUMMARY...Scattered storms are expected to develop this afternoon,
with isolated strong wind gusts and small hail possible.

DISCUSSION...A weak upper low currently exists over AR, with the
broader upper trough extending along the lower MS Valley. This
feature is providing cool temperatures aloft, while at the same
time, a very moist air mass continues to warm. MLCAPE values may
exceed 3000 J/kg by early afternoon, while winds aloft remain very
weak. Visible imagery currently shows an increasing CU field across
northern LA, This should favor strong pulse storms which should
generally propagate in a southerly direction through the afternoon.

..Jewell/Hart.. 05/26/2018

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

ATTN...WFO...JAN...LZK...LCH...SHV...HGX...

LAT...LON   31069460 32209313 32749245 33349215 33539183 33539141
            33259123 32829130 31949149 31249180 30909228 30609285
            30319354 30319405 30429443 30679463 31069460



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