[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 272051
SWOMCD
SPC MCD 272050
KYZ000-TNZ000-INZ000-ILZ000-MOZ000-272215-

Mesoscale Discussion 0871
NWS Storm Prediction Center Norman OK
0350 PM CDT Sat May 27 2017

Areas affected...Portions of far eastern MO...southern
IL/IN...western/central KY...and western/middle TN

Concerning...Severe Thunderstorm Watch 276...

Valid 272050Z - 272215Z

The severe weather threat for Severe Thunderstorm Watch 276
continues.

SUMMARY...A widespread damaging wind threat will increase across
western portions of WW 276 over the next several hours. Isolated
large hail remains possible too.

DISCUSSION...Scattered to numerous convection has developed over the
past several hours across WW 276 along a front in southern IL/IN, as
well as along an outflow boundary across western KY into middle TN.
Multiple instances of large hail (1-1.75 inches in diameter) have
been reported with the strongest cores, and the overall environment
across this region remains favorable for the maintenance of strong
to severe convection through the evening hours. A more organized and
widespread damaging wind threat will likely impact western portions
of WW 276 (southern IL/IN, western KY/TN) over the next several
hours. Latest radar loops shows a bowing line of thunderstorms
moving east-southeastward across southern IL as of 2045Z, with 50+
kt inbound velocities present on the KPAH radar. Damaging winds will
likely occur with this convection, and an even more widespread
damaging wind threat may be realized with a second bowing line
moving quickly eastward across central/southern MO if it can
maintain its intensity as it moves into western portions of WW 276.

..Gleason.. 05/27/2017

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

ATTN...WFO...LMK...OHX...IND...PAH...MEG...LSX...

LAT...LON   36258985 38248953 38708539 37988462 37148498 36108536
            35898736 35848933 36258985
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