Yeah hate reading this on the last SPC update...
The main question with this outlook is convective mode. There are
two possibilities. The first is that the band of thunderstorms will
have discrete elements and gaps that will be favorable for
supercells and tornadoes. Forecast soundings at 15Z from southern
Virginia southward into northern South Carolina show looped
hodographs with 0-3 km storm relative helicities in the extreme
catogory, generally near or above 600 m2/s2. This would support a
threat for strong tornadoes associated with the more dominant
supercells. A wind damage and hail threat would be likely with
supercells and with the more organized line segments.
The second scenario would be that a squall-line is ongoing at 12Z
from eastern Georgia northward into the western Carolinas and
Virginia. In that case, widespread wind damage would be likely. A
QLCS tornado threat would exist with the stronger bowing line
segments. Hail would also be possible with the more intense parts of
At this time, the outlook reflects the first scenario in which more
discrete cells are present across the warm sector at 12Z. In this
case, a cluster outbreak of tornadoes would be possible and a strong
long-track tornado or two can not be ruled out.