Mesoscale Discussion 0590
NWS Storm Prediction Center Norman OK
0623 AM CDT Sat Apr 29 2017
Areas affected...Part southern Indiana...north-central
Kentucky...and extreme southwest Ohio
Concerning...Severe potential...Watch unlikely
Valid 291123Z - 291430Z
Probability of Watch Issuance...20 percent
SUMMARY...Isolated strong to locally severe wind gusts will be
possible through about mid morning across far south-central and
southeast Indiana, north-central Kentucky, and extreme southwest
Ohio.
DISCUSSION...Early morning trends in mosaic radar imagery showed a
bowing line of storms tracking to the east at 35-40 kt through far
south-central IN. This activity appears to be elevated, generally
well north of a convective outflow boundary which extended from
central WV to JKL to 40 S LEX to approximately 25 SW SDF. However,
surface and near-surface winds per area VADs across the lower TN
Valley into western part of KY have backed to southerly, with
surface winds north of the outflow (at FFT and LEX) having become
southerly with a little increase in low-level moisture. This trend
has resulted in some destabilization with northward extent and in
advance of the bowing line of storms. Given some destabilization
this morning and strong winds in the low levels (45-50 kt per VAD at
LVX WSR-88D), locally strong to severe wind gusts cannot be ruled
out across the discussion area through 14Z.
..Peters/Guyer.. 04/29/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...JKL...ILN...LMK...IND...
LAT...LON 37928669 38328623 39008606 39248461 38818340 38138375
37708449 37718553 37928669
Read morefrom SPC Forecast Products http://ift.tt/JBqYYk
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