|Mesoscale Discussion 150|
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Mesoscale Discussion 0150
NWS Storm Prediction Center Norman OK
0244 PM CST Tue Feb 07 2017
Areas affected...Southern Alabama through the central Florida
panhandle and southwest GA
Concerning...Tornado Watch 27...
Valid 072044Z - 072215Z
The severe weather threat for Tornado Watch 27 continues.
SUMMARY...Threat for damaging wind and a couple of tornadoes
persists in the southeast half of WW 27. Trends are being monitored
for another WW that would include the central and eastern FL
panhandle into southwest GA.
DISCUSSION...As of mid afternoon a cluster of storms persists from
southern AL into the western FL panhandle. Activity is moving east
at around 30 kt. A few semi-organized structures including bowing
segments and embedded meso-vortices continue to be observed. A wswly
low-level jet is moving east through the central and northeast Gulf
Coast region in association with a mid-level jet attending a
progressive shortwave trough. Thus the vertical shear will remain
supportive of organized storms.
Some destabilization has also occurred downstream from the line into
the central FL panhandle where diabatic warming of the boundary
layer and modest theta-e advection have contributed to 1000 J/kg
MLCAPE. This environment may support an organized severe threat as
storms continue east, but given the transition to a dominant linear
mode, damaging wind should be the primary threat. However a couple
of tornadoes with embedded supercells or meso-vortices remains
LAT...LON 30418654 30278788 30588830 31588709 31628542 31738385
30338350 29678490 30418654
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