ACUS11 KWNS 190109
SWOMCD
SPC MCD 190109=20
MSZ000-ARZ000-LAZ000-190315-

Mesoscale Discussion 1953
NWS Storm Prediction Center Norman OK
0809 PM CDT Sun Aug 18 2024

Areas affected...Northeast Louisiana into portions of
west-central/southwest Mississippi

Concerning...Severe Thunderstorm Watch 637...

Valid 190109Z - 190315Z

The severe weather threat for Severe Thunderstorm Watch 637
continues.

SUMMARY...Damaging winds are possible with a line of convection
moving south-southeastward into portions of central Mississippi and
northeast Louisiana.

DISCUSSION...An line of convection has organized along outflow from
earlier storms in central/southeast Arkansas. The 00Z observed
sounding from Jackson, MS, showed 2000+ MLCAPE with minimal MLCIN
and 34 kts effective shear. Though some diurnal cooling will occur,
the overall organization of the cold pool should allow strong to
severe storms to continue for another 2-3 hours. Damaging winds will
likely be the main threat given the transition to a linear mode. It
is possible this line of storms could approach the southern edge of
WW 637 before 03Z. Depending on convective trends, this may warrant
an extension in area and/or time of WW 637.

..Wendt.. 08/19/2024

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8U5CXsY_FrismZtWcnoJSKNL8KR4LDExlqg3AG1eIjUVwHNzLki1632lYq5I5-3dWqBrKV44y= A24os9yWNQMpN9zcko$ for graphic product...

ATTN...WFO...JAN...LZK...SHV...

LAT...LON 33239231 33359188 33599098 33699045 32548989 31948994
31779061 31809145 31859195 31979204 32139206 33239231=20


=3D =3D =3D
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