ZCZC SPCSWOMCD ALL
ACUS11 KWNS 062225 
SPC MCD 062225 
GAZ000-TNZ000-ALZ000-070000-

Mesoscale Discussion 1806
NWS Storm Prediction Center Norman OK
0525 PM CDT Wed Oct 06 2021

Areas affected...Northern Alabama...northwest Georgia...southern
Tennessee.

Concerning...Tornado Watch 513...

Valid 062225Z - 070000Z

The severe weather threat for Tornado Watch 513 continues.

SUMMARY...The severe weather threat continues in watch 315.

DISCUSSION...Loosely organized storms continue across northern
Alabama and northwest Georgia into southern Tennessee. Storms have
mostly been below severe limits, but a report of 1 inch hail was
recently received in Cullman County, Alabama. Low-level rotation has
been mostly weak, likely due to a very weak wind field in the lowest
4-5 km per BMX/HTX VWP. However, the KMRX does show stronger
low-level flow and 0-1 SRH in excess of 100 m2/s2. It appears at
least one storm in the area has realized this more favorable
low-level shear environment as a storm which recently moved into
Cumberland County, TN has shown consistent rotation for the last 30
minutes. Therefore, the highest tornado threat (albeit still modest)
will likely be in this region for the next hour. As this storm moves
north, the airmass becomes increasingly rain cooled and stable and
therefore, the tornado threat should diminish with northward extent.

..Bentley/Thompson.. 10/06/2021

...Please see www.spc.noaa.gov for graphic product...

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

LAT...LON   33548708 34748730 35578723 35888658 35908580 35828511
            35618478 34998449 33978456 33288539 33048634 33048692
            33548708 

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