ZCZC SPCSWOMCD ALL
ACUS11 KWNS 180216 
SPC MCD 180216 
ALZ000-180345-

Mesoscale Discussion 0216
NWS Storm Prediction Center Norman OK
0916 PM CDT Wed Mar 17 2021

Areas affected...Northeastern Alabama

Concerning...Tornado Watch 37...

Valid 180216Z - 180345Z

The severe weather threat for Tornado Watch 37 continues.

SUMMARY...Severe wind gusts and perhaps a tornado will remain
possible with storms moving across northeast Alabama.

DISCUSSION...Widespread strong to severe storms are ongoing across
much of northern Alabama. Storms have transitioned to a
predominately linear mode over the last two hours, suggesting a
shift toward a damaging wind threat. However, strong low-level shear
(0-1km SRH 400 m2s2) as sampled from the HTX radar and university
soundings remains in place across northern Alabama and southern
Tennessee. As storms move east into more marginal buoyancy, (250-500
J/kg MUCAPE) along and northeast of the diffuse frontal zone
tonight, there remains a chance for a tornado along with the threat
of damaging wind gusts. The threat will likely begin to decrease
after 03 to 04Z as storms move into an increasingly unfavorable
environment for severe weather.

..Lyons/Guyer.. 03/18/2021

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

ATTN...WFO...BMX...HUN...

LAT...LON   34098699 34828723 34938703 34978612 34828581 34498578
            34218587 34158609 34098699 

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