Severe Storm Outlook Narrative (AC)
Issued by NWS
ACUS01 KWNS 070536
SPC AC 070534
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1134 PM CST Tue Dec 06 2016
Valid 071200Z - 081200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
Isolated thunderstorms will be possible mainly this afternoon across
south Florida. Severe thunderstorms are not expected.
A mid-level low will move from southern Ontario to Quebec through
early Thursday morning, while a belt of strong cyclonic mid-level
winds will extend from the East Coast to the central Plains,
continuing westward to the Great Basin. At the surface, a cold front
over south FL and adjacent waters will make only slow southward
progress to the vicinity of the Keys, becoming ill-defined by this
afternoon. Even with weak low-level convergence, a few thunderstorms
may be possible across parts of south FL along or just behind the
front. Forecast soundings from the RAP and NAM suggest instability,
while limited, should be sufficient to support isolated lightning
strikes with any convection that forms. Elsewhere, thunderstorms are
not expected as surface high pressure will be in place across much
of the CONUS.