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Mesoscale Discussion 1735 |
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Mesoscale Discussion 1735
NWS Storm Prediction Center Norman OK
0138 PM CDT Wed Aug 14 2019
Areas affected...portions of eastern SC...southern AL/GA...the
western FL Panhandle
Concerning...Severe potential...Watch unlikely
Valid 141838Z - 142045Z
Probability of Watch Issuance...5 percent
SUMMARY...A few strong wind gusts will be possible through the
afternoon from the central Gulf Coast vicinity northeast toward
eastern South Carolina.
DISCUSSION...Numerous thunderstorms have developed this afternoon
along a southward-sagging cold front. Temperatures well into the 90s
and dewpoints in the mid to upper 70s have resulted in moderate to
strong instability, with 18z mesoanalysis indicating 2000-3000 J/kg
MLCAPE. Effective shear is weak across the region and will limit
sustained organized features. However, PW values over 2 inches and
low level lapse rates around 7.5-8.5 C/km will support sporadic
strong downbursts. A couple of locally damaging gusts will
especially be possible if any clusters begin to surge/forward
propagate through storm mergers and/or along outflow interactions.
Overall, the threat will remain transient and a watch is not
expected.
..Leitman/Grams.. 08/14/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ILM...CHS...CAE...JAX...FFC...TAE...BMX...MOB...
LAT...LON 31978781 32148575 32528407 32718322 33138133 33867958
33717907 33417898 32987937 32418000 31788076 30668147
30538380 30328574 30318662 30448743 30758780 31118810
31438829 31798825 31978781
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