Threat for Damaging Winds & a Brief Tornado Remains Possible Ahead of the Front

| December 29, 2021 @ 8:47 pm

Here is the latest from the SPC’s Mesoscale Discussion:

SUMMARY… Storms moving out of Tennessee and Alabama may continue to pose a damaging wind and brief tornado threat.

DISCUSSION… A long-lived line of storms currently extends from far eastern TN into northeast AL, with QLCS structures observed on radar with a brief tornado possibly occurring in DeKalb County, AL.

Surface analysis shows mid 60s F dewpoints have spread into the Atlanta area, with low 60s F approaching western NC. This is resulting in sufficient SBCAPE to sustain a damaging wind and tornado risk, as shear remains strong. 0-1 SRH of 250-300 m2/s2 currently resides ahead of the line of storms, and strongly favors low-level rotation. As such, the QLCS tornado and wind risk is expected to continue eastward, and a new watch may be necessary soon.

Category: Alabama's Weather, ALL POSTS, Severe Weather

About the Author ()

Scott Martin is an operational meteorologist, professional graphic artist, musician, husband, and father. Not only is Scott a member of the National Weather Association, but he is also the Central Alabama Chapter of the NWA president. Scott is also the co-founder of Racecast Weather, which provides forecasts for many racing series across the USA. He also supplies forecasts for the BassMaster Elite Series events including the BassMaster Classic.

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