Severe Storm Outlook Narrative (AC)
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675
ACUS11 KWNS 221411
SWOMCD
SPC MCD 221411
GAZ000-FLZ000-221515-

Mesoscale Discussion 0109
NWS Storm Prediction Center Norman OK
0811 AM CST Sun Jan 22 2017

Areas affected...Far southern Georgia and adjacent North Florida

Concerning...Tornado Watch 19...

Valid 221411Z - 221515Z

The severe weather threat for Tornado Watch 19 continues.

SUMMARY...Southern portions of WW 19 will likely need to be extended
temporally after expiration time of 15Z.

DISCUSSION...New strong to severe storm development continuing
across the central and eastern Florida Panhandle will advance to the
east-northeast through the southern extent of WW 19, and possibly
affect a few additional northern tier of Florida counties during the
mid-late morning.

Mosaic radar imagery showed an active corridor of strong to severe
storms (some tornadic) moving through the far southern extent of WW
19 at this time.  The air mass south of these storms has continued
to destabilize with MLCAPE increasing to 1000+ J/kg, and combined
with strong effective bulk shear will continue to support the
potential for supercell development. Objective analyses indicated
effective SRH of 300-500 m2/s2 favoring the tornado threat this
morning.

Portions of this region will likely be included in a PDS Tornado
Watch later today as storms develop and spread into this region from
the west.

..Peters/Thompson.. 01/22/2017

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

ATTN...WFO...CHS...JAX...TAE...

LAT...LON   30808514 31458151 30948138 30408139 30208192 30108285
            30148357 30138401 30368463 30808514




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