ZCZC SPCSWOMCD ALL
ACUS11 KWNS 080200 
SPC MCD 080200 
SCZ000-GAZ000-080400-

Mesoscale Discussion 1191
NWS Storm Prediction Center Norman OK
0900 PM CDT Wed Jul 07 2021

Areas affected...Coastal areas of southeast Georgia and southern
South Carolina

Concerning...Tornado Watch 347...

Valid 080200Z - 080400Z

The severe weather threat for Tornado Watch 347 continues.

SUMMARY...The tornado threat will persist across remaining areas of
WW 347. The greatest near term risk (over the next 1-2 hours) will
reside across coastal areas of the GA/SC border.

DISCUSSION...The primary rain band associated with Tropical Storm
Elsa continues to translate along the GA coast, and periodic
lightning jumps indicate that the thermodynamic environment is still
favorable for strong updrafts despite the loss of diurnal heating.
Velocity data from KJAX shows transient couplets within this band -
namely just offshore. Low-level confluence remains maximized along
the band axis, and high theta-e air in proximity to the coast
(denoted by mid 70s dewpoints) coupled with easterly surface winds
on the northern side of the band are maintaining an environment with
sufficient instability and low-level helicity conducive for brief
tornadoes. The near-term tornado threat will likely be maximized
along this band, which should continue to move along the GA/SC coast
over the next 1-2 hours.

..Moore.. 07/08/2021

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

ATTN...WFO...CHS...

LAT...LON   31048123 31518121 31758151 32258160 32548133 32788115
            32798068 32578044 32218031 31778041 31338056 30998075
            30898099 30908113 31048123 

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