ZCZC SPCSWOMCD ALL
ACUS11 KWNS 302327 
SPC MCD 302327 
GAZ000-ALZ000-310130-

Mesoscale Discussion 1752
NWS Storm Prediction Center Norman OK
0627 PM CDT Tue Jul 30 2024

Areas affected...northern into central Georgia and adjacent portions
of eastern Alabama

Concerning...Severe Thunderstorm Watch 574...

Valid 302327Z - 310130Z

The severe weather threat for Severe Thunderstorm Watch 574
continues.

SUMMARY...A cluster of thunderstorms may overspread much of the
Greater Atlanta metro area through 9-10 PM EDT, accompanied by
strong to locally severe wind gusts.

DISCUSSION...A downburst associated with collapsing convection
produced wind gusts to 54 kt at Chattanooga Metropolitan airport at
2216Z, where 2 hourly surface pressure rises up to at least 3.8 mb
were recorded in the 23Z surface observations.  This is within a
broader cold pool advancing across the higher terrain of
southeastern Tennessee, western North Carolina and northeastern
Georgia.  

Near the leading edge of the outflow associated with the stronger
downburst, convection has re-intensified some in a small cluster. 
Aided by wind profiles including light westerly low-level flow
beneath 20-30 kt north-northwesterly mid/upper flow, modest
southwesterly system relative inflow may continue to support
strongest renewed convective development south/southwestward across
much of the Greater Atlanta metro through 01-02Z.  Given the 30 kt
forward propagation, most peak gusts may remain on the order of
30-40 kt on the larger-scale, but locally stronger downbursts remain
possible.

..Kerr.. 07/30/2024

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

ATTN...WFO...FFC...BMX...

LAT...LON   34578371 34178347 33548345 33008376 32658443 32628512
            33088544 34318534 34438501 34388460 34448405 34578371 

NNNN