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ACUS11 KWNS 070031
SWOMCD
SPC MCD 070031=20
GAZ000-TNZ000-ALZ000-KYZ000-070200-

Mesoscale Discussion 1807
NWS Storm Prediction Center Norman OK
0731 PM CDT Wed Oct 06 2021

Areas affected...the Middle Tennessee vicinity...and southward into
the northern half of Alabama and northwestern Georgia

Concerning...Tornado Watch 513...

Valid 070031Z - 070200Z

The severe weather threat for Tornado Watch 513 continues.

SUMMARY...Local risk for severe weather continues, with occasionally stronger/rotating storms.

DISCUSSION...latest radar loop shows that earlier storms which
locally had exhibited low-level rotation have diminished over the
past 1 to 2 hours. However, area VWPs -- particularly across
northern portions of the WW -- continue to suggest shear sufficient
for brief/local increases in low-level rotation with any
longer-lived storm.=20=20

Overall, a very slow diminishing trend in risk for stronger storms
is expected with time. However, with the upper low providing cool
mid-level temperatures, and a boundary layer that is nearly
saturated and thus not prone to appreciable diurnal cooling, minimal
but sufficient CAPE will linger into the overnight hours in areas
away from more widespread/ongoing precipitation. As such, a very
limited/local severe risk will likely continue -- even beyond the
scheduled 03Z expiration of WW 513. With that said, a new WW is not
expected to be necessary at this time, though we will continue to
monitor convective trends over the next couple of hours in/near the
watch.

..Goss.. 10/07/2021

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!sAOzr1ditWDvHOcGhC3olKZnfuHZWwvMzs3WvDMiGh8IblSUe3bq5xP8zq_0BJHid9_986o_$=
for graphic product...

ATTN...WFO...MRX...FFC...OHX...BMX...HUN...PAH...MEG...

LAT...LON 32668728 33818754 34698796 36688824 36528716 35698519
33978491 33188496 32668728=20



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