|Mesoscale Discussion 886|
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Mesoscale Discussion 0886
NWS Storm Prediction Center Norman OK
0946 PM CDT Sat May 27 2017
Areas affected...Southern Appalachians
Concerning...Severe Thunderstorm Watch 282...
Valid 280246Z - 280415Z
The severe weather threat for Severe Thunderstorm Watch 282
SUMMARY...A line of thunderstorms, some severe, will continue to
move slowly south and east into the overnight. Hail and strong/gusty
winds will be possible with the strongest thunderstorms.
DISCUSSION...A quasi-linear convective system has organized across
portions of eastern Tennessee and northwestern North Carolina. Here,
most unstable CAPE around 1000 J/kg and deep-layer shear around 50
knots will continue to support organized thunderstorms. Hail and
strong/gusty winds will be possible, especially with the strongest
thunderstorm cores. One potential mitigating factor for a more
widespread wind potential into the overnight will be the increasing
surface inhibition and decreasing low-level lapse rates owing to the
loss of daytime heating.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 35208577 36598389 36918189 36648051 36197991 35288022
34888289 34998582 35208577
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