SPC MD 439

MD 0439 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR NORTHEAST AL...NORTHERN GA...SC

Mesoscale Discussion 0439
NWS Storm Prediction Center Norman OK
0925 AM CDT Wed Apr 05 2017

Areas affected...Northeast AL...Northern GA...SC

Concerning...Severe potential...Watch possible 

Valid 051425Z - 051600Z

Probability of Watch Issuance...40 percent

SUMMARY...Clusters of severe thunderstorms should focus along a
corridor from northeast AL into central SC over the next 2-4 hours. 
New WW may be required downstream across SC to account for an
expanding severe threat.

DISCUSSION...Latest radar trends support a broad sustained corridor
of low-level warm advection-induced thunderstorms from northeast AL
across northern GA.  With LLJ expected to strengthen across GA, as
the day progresses, it appears moistening/forcing for ascent will
increase the likelihood for clusters of severe thunderstorms to
spread/develop into SC.  Increasing buoyancy amidst strengthening
shear aids confidence in a multifaceted severe event across this
region.  Supercells are likely within this environment along with
bow-type structures.  Large hail, damaging winds, and tornadoes are
possible.

..Darrow/Hart.. 04/05/2017

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

ATTN...WFO...CHS...CAE...GSP...FFC...BMX...

LAT...LON   34358492 34368206 33808045 32758079 32938284 33118546
            34358492 

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