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ACUS11 KWNS 110248
SWOMCD
SPC MCD 110248=20
KYZ000-TNZ000-MOZ000-110345-

Mesoscale Discussion 1995
NWS Storm Prediction Center Norman OK
0848 PM CST Fri Dec 10 2021

Areas affected...Far northwest Tennessee and western Kentucky.

Concerning...Tornado Watch 552...

Valid 110248Z - 110345Z

The severe weather threat for Tornado Watch 552 continues.

SUMMARY...The intense tornado threat continues from the long-track
supercell currently in far northwest Tennessee.

DISCUSSION...The long-track supercell in northwest Tennessee has
shown 70+ knot Vrot nearly continuously for the past 90 minutes with
a nearly continuous and deep TDS for over 80 miles. More storms have
developed in the vicinity of this storm over the past 30 minutes
which could disrupt its internal structure and bring an end to the
steady state structure. However, the downstream environment is still
very favorable with upper 60 dewpoints and backed surface winds and
STP around 5 to 6. Therefore, even if the low-level circulation is
disrupted, additional organization/cycling is likely and the intense
tornado threat is expected to continue as this supercell continues
northeast.

..Bentley.. 12/11/2021

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!us-u2DcaDEJSa86vR-Yj69W9C9D5y79Isrib08u228TFGGZyleKA_soeo_J_TQQpOy_iPh-2$=
for graphic product...

ATTN...WFO...PAH...MEG...

LAT...LON 36668822 36388910 36368932 36428945 36508942 36848905
37048854 37158805 37058778 36898770 36668822=20



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