892
ACUS11 KWNS 221903
SWOMCD
SPC MCD 221903
ARZ000-TXZ000-OKZ000-222030-

Mesoscale Discussion 0894
NWS Storm Prediction Center Norman OK
0203 PM CDT Wed May 22 2024

Areas affected...Far Southeast Oklahoma...Far Northeast Texas...Much
of Arkansas

Concerning...Severe Thunderstorm Watch 284...

Valid 221903Z - 222030Z

The severe weather threat for Severe Thunderstorm Watch 284
continues.

SUMMARY...Large hail and damaging gusts remain possible from far
southeast Oklahoma and far northeast Texas across much of Arkansas.
Large hail and damaging gusts as the primary threats.

DISCUSSION...The earlier convection across northwestern AR weakened
as it moved into central portions of the state, with limited
thunderstorm activity over the past hour or so. Farther southwest,
an elevated thunderstorm has undergone notable
intensification/organization as it moves across southeast OK,
maintaining a robust updraft over much of the last hour. Strong
buoyancy and vertical shear exist within the airmass downstream of
this cell, suggesting the severe threat will likely persist with
this supercell as it moves from Pushmataha County eastward into
southern Le Flore and northern McCurtain Counties.

Additionally, thunderstorm development continues to progress
northeastward into the region from north-central TX. The surface
pattern is convoluted by the ongoing precipitation, but this
activity appears to be mostly north of the preceding storm outflow
but still south of the primary push of cold air. As such, the threat
for surface-based storms still exists in this area (far southeast
OK/southwest AR) for the next few hours, with large hail and
damaging gusts as the primary threats.

..Mosier.. 05/22/2024

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

ATTN...WFO...LZK...SHV...TSA...FWD...OUN...

LAT...LON   34159626 34799508 35259277 35009136 33649320 33499561
            34159626