MD 0539 CONCERNING SEVERE THUNDERSTORM WATCH 142… FOR PORTIONS OF EXTREME EASTERN ARKANSAS INTO NORTHERN MISSISSIPPI
Mesoscale Discussion 0539
NWS Storm Prediction Center Norman OK
0812 PM CDT Sat Apr 15 2023
Areas affected...portions of extreme eastern Arkansas into northern
Mississippi
Concerning...Severe Thunderstorm Watch 142...
Valid 160112Z - 160215Z
The severe weather threat for Severe Thunderstorm Watch 142
continues.
SUMMARY...The severe threat continues across central portions of
Severe Thunderstorm Watch 0142. Damaging gusts will remain a concern
for at least the next few hours.
DISCUSSION...The trailing portion of an MCS continues to increase in
intensity just south of a bow echo in far eastern AR. MRMS depicts a
wide area of 50+ dBZ reflectivity along the MCS leading line, with
30 dBZ echoes reaching up to 60 kft. Hydrometeor loading is likely
taking place along this portion of the line, with an overall
rightward deviance in forward motion noted. It is possible that an
additional bow echo may develop over the next 30-60 minutes, which
would support a focused corridor of severe winds across northern MS.
Even if the bow echo does not materialize, at least a few damaging
gusts will be possible over the next couple of hours, before
nocturnal cooling begins to temper the severe threat.
..Squitieri.. 04/16/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MEG...JAN...LZK...
LAT...LON 34629156 34869119 35129057 35289005 35278954 35158878
34968837 34578822 34208824 33958846 33728896 33738957
33899024 34159105 34269134 34629156
