|Mesoscale Discussion 1764|
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Mesoscale Discussion 1764
NWS Storm Prediction Center Norman OK
0846 PM CST Sun Nov 05 2017
Areas affected...southern Indiana...southwest Ohio and northern
Concerning...Severe Thunderstorm Watch 515...
Valid 060246Z - 060445Z
The severe weather threat for Severe Thunderstorm Watch 515
SUMMARY...Threat for mainly a few strong to damaging wind gusts will
persist through 04Z over a portion of the Ohio Valley, but overall
threat is expected to become more marginal with time. Per
coordination with Wilmington and Indianapolis, most of the remainder
of WW 515 will be cancelled at 03Z with a small part remaining over
extreme southern Indiana and northern Kentucky.
DISCUSSION...Broken line of storms extending from southern OH into
southern IN continues moving southward while individual elements
within the line move more rapidly east-southeast. The thermodyamic
environment is becoming increasingly marginal with MLCAPE generally
at or below 500 J/kg. General trend has been for storms to become
less organized. This is expected to continue as the boundary layer
stabilizes and the low-level jet veers with time. However, given the
very strong kinematic environment, occasional organized structures
remain possible next hour or so.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 39178455 39338368 39278325 38918343 38418450 38068546
37728649 37728689 38078703 38548591 39178455
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