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Mesoscale Discussion 0995
NWS Storm Prediction Center Norman OK
0109 PM CDT Thu Jun 25 2020
Areas affected...southern Alabama...southwest Georgia and the
northern Florida Panhandle
Concerning...Severe potential...Watch unlikely
Valid 251809Z - 252015Z
Probability of Watch Issuance...20 percent
SUMMARY...Thunderstorms capable of producing a few locally strong to
damaging wind gusts will continue developing this afternoon. A ww
will probably not be needed unless storms begin to show signs of
better organization.
DISCUSSION...Convergence augmented by differential heating in
vicinity of a weak stationary boundary and destabilization of the
surface layer has contributed to the development of thunderstorms
from southern AL into southwest GA. This activity will likely
persist this afternoon, possibly evolving into clusters as they
spread east. The latest objective analysis shows the atmosphere to
be moderately unstable with low to mid 70s F dewpoints supporting
2000-2500 J/kg MLCAPE. This region resides on the southern periphery
of a belt of modest mid-level westerlies within the base of a
synoptic trough with 30-35 kt wind speeds in the 3-5 km layer. Weak
vertical shear suggests multicells, but activity may become capable
of producing a few locally strong to damaging gusts as low-level
lapse rates undergo further steepening.
..Dial/Thompson.. 06/25/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...TAE...BMX...MOB...
LAT...LON 31708810 31768592 31178360 30558413 31088811 31708810
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