SPC AC 190452
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1052 PM CST Sat Nov 18 2017
Valid 191200Z - 201200Z
...NO THUNDERSTORM AREAS FORECAST...
Thunderstorms are not expected Sunday over the continental United
In the wake of a strong surface cold front, a generally cool, dry,
and stable airmass will continue to filter southward across the
eastern United States on Sunday. Although surface dewpoints will be
in the 60s along and ahead of the front across the Florida
Peninsula, weak convergence along the front and warm temperatures
aloft should preclude thunderstorm development.
Elsewhere, shallow convection associated with lake-effect
precipitation may have the potential for a couple of lightning
strikes, but confidence and coverage is too low to justify
delineation. Additionally, as a low-amplitude mid-level trough moves
across the Pacific Northwest, sufficient cooling aloft may result in
enough mid-level instability to produce a lightning strike or two
along and near the immediate coast.
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