Severe Storm Outlook Narrative (AC)
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715
ACUS11 KWNS 221832
SWOMCD
SPC MCD 221831
GAZ000-ALZ000-221930-

Mesoscale Discussion 0114
NWS Storm Prediction Center Norman OK
1231 PM CST Sun Jan 22 2017

Areas affected...Portions of east-central AL and west-central GA

Concerning...Tornado Watch 21...

Valid 221831Z - 221930Z

The severe weather threat for Tornado Watch 21 continues.

SUMMARY...A cluster of intense storms will spread across portions of
east-central AL into west-central GA through mid-afternoon.

DISCUSSION...A cluster of thunderstorms spreading eastward and
northeastward across portions of central AL is exhibiting forward
motion around 35-45 kt, with linear extrapolation suggesting its
leading edge crossing into GA around 2030-2200Z. This activity is
evolving within a region of strong deep ascent associated with the
left-exit region of a midlevel speed maximum. While this activity
lies to the north of the most unstable air presently confined to
southern AL/GA, the 18Z Birmingham sounding indicates sufficient
buoyancy amidst around 60-70 kt of deep shear for a continued severe
risk with this activity. Damaging winds and tornadoes will be
possible, especially owing to rapid intensification of the surface
low in proximity to the area.

..Cohen.. 01/22/2017

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...FFC...TAE...BMX...MOB...

LAT...LON   32178638 32768638 33118546 33088466 32758455 32188458
            31888531 31868612 32178638




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