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ACUS11 KWNS 300456
SWOMCD
SPC MCD 300456=20
NCZ000-SCZ000-GAZ000-ALZ000-300700-
Mesoscale Discussion 2082
NWS Storm Prediction Center Norman OK
1056 PM CST Wed Dec 29 2021
Areas affected...east-central Alabama into northern Georgia and the
far western Carolinas
Concerning...Tornado Watch 571...
Valid 300456Z - 300700Z
The severe weather threat for Tornado Watch 571 continues.
SUMMARY...Isolated reports of damaging gusts or a brief tornado
remain possible across the watch area as a line of storms pushes
east tonight.
DISCUSSION...A line of storms currently stretches from northwestern
SC across northern GA and into central AL, where a lone supercell
produced a tornado earlier. Northern portions of the outflow are
mainly producing rain showers into western NC, but an uptick in
intensity with this portion of the line cannot be ruled out as it
intercepts lower 60s F dewpoints.
To the southwest, the strongest portion of the line continues to
move across northern GA with relatively laminar outflow currently.
The orientation of this line is becoming more parallel with the
deep-layer shear, which is not particularly favorable for for
forward acceleration. However, shear remains favorable for
supercells, and a brief QLCS tornado remains possible along the
line. The greatest instability will remain farther west into AL,
with MLCAPE over 1000 J/kg, with around 250 m2/s2 effective SRH
still favoring supercells.
..Jewell.. 12/30/2021
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!v0Jxkn0aWVZLWoyErXFIkSmCelsYRkpWd5YUejQw7mLf72EquTn50OT7Mw8d0m8D-0V8BFAu$=
for graphic product...
ATTN...WFO...CAE...GSP...FFC...BMX...
LAT...LON 33078664 33508553 33958450 34478369 35088296 35508247
35608122 35348094 34908123 34248196 33458300 32948348
32888425 32938558 32958620 33078664=20
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