SPC MD 33

SPC MD 33

MD 0033 CONCERNING TORNADO WATCH 4…5… FOR PORTIONS OF NORTH FL AND COASTAL/SOUTHEAST GA

Mesoscale Discussion 0033
NWS Storm Prediction Center Norman OK
1216 PM CST Tue Jan 09 2024

Areas affected…Portions of north FL and coastal/southeast GA

Concerning…Tornado Watch 4…5…

Valid 091816Z – 091945Z

The severe weather threat for Tornado Watch 4, 5 continues.

SUMMARY…A tornado threat continues with small cells embedded
within a line of thunderstorms moving quickly eastward.
Severe/damaging winds also remain a concern.

DISCUSSION…The line of thunderstorms across southeast GA has
become a bit more broken recently, with a couple small cells noted.
Extremely strong low-level shear remains present along/downstream of
this activity across north FL and coastal/southeast GA, with recent
VWPs from KJAX showing around 50 kt of 0-1 km shear, and effective
SRH in excess of 500 m2/s2. Low-level rotation has been noted with
these small cells, and a tornado threat remains apparent given the
very favorable kinematic environment. With some modest daytime
heating also occurring (surface temperatures generally reaching into
the low to mid 70s), steepening low-level lapse rates should promote
efficient downward momentum transfer of the very strong flow just
off the surface. Severe/damaging downdraft winds will remain a
concern with the more linear structures as the overall line advances
quickly eastward through the afternoon.

..Gleason.. 01/09/2024

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

ATTN…WFO…CHS…JAX…FFC…TAE…

LAT…LON 29898334 30918299 32518231 32618172 31878108 31138134
29618180 29898334

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