Severe Storm Outlook Narrative (AC)
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058
ACUS11 KWNS 222040
SWOMCD
SPC MCD 222039
PAZ000-WVZ000-OHZ000-KYZ000-INZ000-222145-

Mesoscale Discussion 1554
NWS Storm Prediction Center Norman OK
0339 PM CDT Tue Aug 22 2017

Areas affected...Portions of the Ohio Valley

Concerning...Severe Thunderstorm Watch 462...

Valid 222039Z - 222145Z

The severe weather threat for Severe Thunderstorm Watch 462
continues.

SUMMARY...Severe threat has shifted to areas mostly east of Ohio and
south of the Ohio River.

DISCUSSION...Significant convective overturning has occurred across
OH this afternoon with strongest storms having shifted to the east
and south. Two primary lines of storms have evolved over WW462 with
the eastern-most band extending from western PA into eastern KY.
This line of storms has produced isolated damaging winds gusts and
should continue to do so, especially the northern line segment, as
it propagates toward central PA. The southwestern-most line segment
along the OH River has struggled to generate severe wing gusts or
damage. Even so, environmental shear remains supportive of
convective organization and this band of storms should propagate
across much of KY over the next several hours with some attendant
wind threat.

..Darrow.. 08/22/2017

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

ATTN...WFO...CTP...PBZ...RLX...CLE...JKL...ILN...LMK...PAH...

LAT...LON   37358722 41318069 41317668 37368338 37358722




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