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ACUS11 KWNS 110537
SWOMCD
SPC MCD 110536=20
KYZ000-TNZ000-110630-

Mesoscale Discussion 2006
NWS Storm Prediction Center Norman OK
1136 PM CST Fri Dec 10 2021

Areas affected...northern Tennessee and southern Kentucky.

Concerning...Tornado Watch 554...

Valid 110536Z - 110630Z

The severe weather threat for Tornado Watch 554 continues.

SUMMARY...A significant tornado threat is materializing across
northern Tennessee and southern Kentucky.

DISCUSSION...A cluster of storms has produced occasional tornadoes
as it moved across eastern Arkansas and western Tennessee, but storm interference and a messy storm mode so far has precluded a more
long-lived, strong tornado threat. However, a cell, now in Henry
County, Tennessee, has emerged ahead of this line and has a
favorable airmass ahead of it. MLCAPE around 1000 to 1200 J/kg and
0-1 km SRH around 300 m2/s2 per OHX VWP suggest strong tornadoes
will be possible. As long as this storm inflow remains unimpeded, it
will likely pose a threat for strong tornadoes.

..Bentley.. 12/11/2021

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!tKE35eTroKUQHSV8O8yy7qCG5_rm-oPHclZ1g8D9JEAYg85ZU9HEEm-OdflxsRkExoe-dJtA$=
for graphic product...

ATTN...WFO...LMK...OHX...PAH...MEG...

LAT...LON 36558860 36948762 36908657 36528641 36148721 36068844
36018895 36208900 36558860=20



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