Severe Storm Outlook Narrative (AC)
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686
ACUS11 KWNS 250359
SWOMCD
SPC MCD 250359
WVZ000-OHZ000-KYZ000-TNZ000-250530-

Mesoscale Discussion 0097
NWS Storm Prediction Center Norman OK
0959 PM CST Sat Feb 24 2018

Areas affected...Middle Tennessee...eastern Kentucky and parts of
adjacent southern Ohio and West Virginia

Concerning...Tornado Watch 6...

Valid 250359Z - 250530Z

The severe weather threat for Tornado Watch 6 continues.

SUMMARY...A risk for severe weather continues, but this threat is in
the process of becoming increasingly marginal, and a new watch is
not anticipated.

DISCUSSION...Overall, even the most vigorous convection is becoming
generally low-topped as associated large-scale forcing for ascent
spreads toward the upper Ohio Valley/central Appalachians.
Lightning has diminished considerably further in the past couple of
hours, and these trends seem likely to continue into and through the
1-4 AM EST time frame.  Although the surface warm front has advanced
into the vicinity of the Ohio River, the boundary layer ahead of the
convective line becomes progressively cooler and drier eastward into
the Cumberland Plateau.  Further potential for tornadoes seems
rather limited, but downward mixing of stronger momentum could
continue to contribute to sporadic damaging wind gusts at least
another couple of hours.

..Kerr.. 02/25/2018

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

ATTN...WFO...RLX...MRX...JKL...ILN...LMK...OHX...HUN...

LAT...LON   38338497 38958414 39158314 38588214 37398295 36018475
            35388588 35308650 35768705 37038585 37878545 38338497




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