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Mesoscale Discussion 1951
NWS Storm Prediction Center Norman OK
0613 PM CDT Sun Aug 18 2024

Areas affected...Northwest Arkansas into east-central Mississippi

Concerning...Severe Thunderstorm Watch 637...

Valid 182313Z - 190115Z

The severe weather threat for Severe Thunderstorm Watch 637
continues.

SUMMARY...Damaging winds and isolated large hail will remain
possible into the early evening. Storms in northwest and
south-central Arkansas will pose the greatest risk of these hazards.

DISCUSSION...Scattered storm development in central Arkansas has
produced a cold pool that is pushing south and east. Storms,
particularly along the southern edge where it is more unstable,
continue to develop. Recently, Pine Bluff gusted to 44 kts as storms
moved through. this activity will continue to pose a risk for
damaging winds and isolated large hail as it progresses
south/southeast.

In Northwest Arkansas, additional storms are beginning to develop as
a weakening MCV/cold pool moves into the strongly buoyant airmass.
Wind gusts of 44-56 kts have already been observed with this
activity. Isolated large hail may also occur within initially
discrete updrafts. The airmass in west-central Arkansas has thus far
not been affected by convection and this activity may tend to
propagate into this area.

..Wendt.. 08/18/2024

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

ATTN...WFO...MEG...JAN...LZK...SGF...SHV...TSA...

LAT...LON   35979528 36519477 36719404 36669352 35249180 35219169
            34069057 33219048 32759136 32759200 32889231 33189310
            35979528