SUMMARY...A severe/damaging wind threat is expected to continue into
the evening with a line of storms moving eastward. Severe
Thunderstorm Watch issuance is likely.
DISCUSSION...An organized QLCS will move eastward across parts of southern/central AL through the remainder of the afternoon and into
the early evening. A moist and unstable airmass exists downstream of
this convection, and to the south of an outflow boundary where
additional, non-severe storms have formed. As large-scale ascent and
35-40 kt of mid-level flow associated with an upper trough now over
the lower MS Valley continues to overspread AL/GA and the FL
Panhandle, the QLCS should maintain its intensity through much of
the evening. Given the linear nature of this ongoing convection and
steep low-level lapse rates owing to diurnal heating, scattered
damaging downdraft winds should be the main threat. The low-level
flow is not overly strong, and appears mostly veered to
southwesterly per recent surface observations and area VWPs.
Accordingly, any tornado threat should remain rather brief/isolated.
Severe Thunderstorm Watch issuance will likely be needed to address
the damaging wind threat.
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