[BNAWX] Severe Storm Outlook Narrative

EMWIN Server emwin at nashvilleweather.net
Sat Dec 9 16:16:07 CST 2023


ACUS11 KWNS 092215
SWOMCD
SPC MCD 092215
TNZ000-KYZ000-092345-

Mesoscale Discussion 2308
NWS Storm Prediction Center Norman OK
0415 PM CST Sat Dec 09 2023

Areas affected...Parts of middle TN

Concerning...Tornado Watch 714...715...

Valid 092215Z - 092345Z

The severe weather threat for Tornado Watch 714, 715 continues.

SUMMARY...A short-term tornado threat continues with ongoing
supercells.

DISCUSSION...At 2215 UTC, long-lived supercells are ongoing north
and west of Nashville, within an environment characterized by modest
instability but favorable low-level and deep-layer shear. Recent
VWPs from KOHX depict 0-1 km SRH of greater than 200 m2/s2, which
will continue to support a tornado threat for as long as instability
remains sufficient. While an increase in storm coverage and tendency
toward more of a linear mode is expected with time, the ongoing
supercells are sufficiently ahead of the cold front to remain
relatively discrete in the short term as they move quickly
east-northeastward across northern middle TN.

..Dean.. 12/09/2023

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

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

LAT...LON   35898784 36358699 36688679 36668616 36058628 35588667
            35548721 35638761 35818784 35898784
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