[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 290039
SWOMCD
SPC MCD 290038
KYZ000-INZ000-TNZ000-290145-

Mesoscale Discussion 0259
NWS Storm Prediction Center Norman OK
0738 PM CDT Sat Mar 28 2020

Areas affected...Western/Central KY...Southern IN

Concerning...Tornado Watch 71...

Valid 290038Z - 290145Z

The severe weather threat for Tornado Watch 71 continues.

SUMMARY...New Tornado watch will likely be warranted soon, extending
east of ww71.

DISCUSSION...Large-scale height falls and strengthening wind fields
appear to be aiding an elongated corridor of convection that
currently stretches from southern IL-along the MS River-northern LA.
With time a squall line should mature and move steadily east across
the lower OH Valley/Mid-South Region. Of some concern is the
pre-squall line activity that is spreading across the TN/KY border,
southwest of HOP. This activity should approach the eastern edge of
ww71 within the hour. 00z soundings from BNA, and especially JAN are
notably capped with significant inhibition. This suggests
warm-sector development may struggle south of the KY border until
boundary layer moistens and/or 700mb temperatures cool. Some cooling
is expected later this evening but the primary storm mode may be an
upward-evolving squall line. Even so, a few discrete supercells will
likely spread across western KY ahead of the main line. As a result,
a new tornado watch may be warranted soon to account for this
threat.

..Darrow.. 03/29/2020

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

ATTN...WFO...LMK...OHX...PAH...

LAT...LON   37198821 38648631 38128519 36638699 37198821
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