Severe Storm Outlook Narrative (AC)
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000
ACUS03 KWNS 160748
SWODY3
SPC AC 160747

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0147 AM CST Sat Dec 16 2017

Valid 181200Z - 191200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE CENTRAL GULF COAST...

...SUMMARY...
Isolated to scattered thunderstorms are expected to continue to
persist across the western and central Gulf Coast region on Monday.
A few of the stronger thunderstorms in the central Gulf Coast states
may be associated with marginally severe damaging wind gusts.

...Central Gulf Coast...
An anticyclonic west to southwest flow pattern will remain in place
across the Southeast on Monday. At the surface, a moist airmass will
be in place from the Texas Coastal Plains eastward into the central
Gulf Coast states. Isolated to scattered thunderstorms may be
ongoing at the start of the period along the northern edge of a
moist airmass from southern Louisiana into southern Mississippi. The
low-level moisture with surface dewpoints in the mid to upper 60s F
will contribute to weak instability. This along with enhanced
low-level flow should provide support for continued isolated to
scattered thunderstorm development during the day. Forecast
soundings on Monday from New Orleans eastward to Mobile show 0-6 km
shear in the 45 to 50 kt range with mostly unidirectional wind
profiles. This may be enough for a marginal wind-damage threat
mainly through about midday when convective coverage is forecast to
be the greatest.

..Broyles.. 12/16/2017

$$



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