Severe Storm Outlook Narrative (AC)
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ACUS03 KWNS 120730
SWODY3
SPC AC 120729

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0129 AM CST Tue Dec 12 2017

Valid 141200Z - 151200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected across the contiguous states on
Thursday and Thursday night.

...Synopsis...
A longwave trough being reinforced east of the U.S. Rockies into
Thursday and Thursday night could deepen as a portion of a shortwave
trough, now approaching southern Alaska per water-vapor imagery,
digs south/southeast through the Plains toward the lower MS Valley.
Although moistening is expected within the lower troposphere across
the Gulf Basin to off the southern Atlantic coast ahead of a cold
front, a stable environment over land will limit thunderstorm
development across portions of FL.  Greater buoyancy could become
deep enough offshore across parts of the Gulf of Mexico and off the
coast of eastern FL for lightning production, mainly Thursday night
to early Friday.

..Peters.. 12/12/2017

$$


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