Thursday, April 6, 2017

SPC MD 456

MD 0456 CONCERNING SEVERE THUNDERSTORM WATCH 130... FOR CENTRAL PORTIONS OF NORTH AND SOUTH CAROLINA INTO EAST CENTRAL GEORGIA
MD 0456 Image

Mesoscale Discussion 0456
NWS Storm Prediction Center Norman OK
0154 AM CDT Thu Apr 06 2017

Areas affected...Central portions of North and South Carolina into
east central Georgia

Concerning...Severe Thunderstorm Watch 130...

Valid 060654Z - 060830Z

The severe weather threat for Severe Thunderstorm Watch 130
continues.

SUMMARY...Severe risk has become marginal/isolated at best across
the existing portions of WW 130.

DISCUSSION...Latest radar loop shows remnant convection diminishing
rapidly across North Carolina, while a narrow band of showers and
storms persists along the immediate cold front from AIK (Aiken, SC)
south-southwest across east central Georgia.

Very strong deep-layer flow remains across the entire region,
however thermodynamic deficiencies are evident, particularly within
the boundary layer where relatively cool/stable air is resulting in
largely -- if not entirely -- elevated storms.  As a result, hail
risk has been minimal, and stronger wind gusts have been hindered
from penetrating to the surface across the region over the past 1-2
hours.  While a somewhat more moist boundary layer is evident ahead
of the front across southeast GA and vicinity, the airmass has been
stabilized near the coast by the ongoing pre-frontal band of storms.
 This -- as well as the much more stable air farther north across
the eastern Carolinas -- makes downstream WW issuance rather
unlikely in the next few hours.

..Goss.. 04/06/2017

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

ATTN...WFO...RAH...RNK...CHS...CAE...GSP...FFC...TAE...

LAT...LON   36188014 36507979 36117915 35087973 33798074 31678332
            31878341 33908208 34338212 34918103 36188014 

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