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Mesoscale Discussion 139 |
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Mesoscale Discussion 0139
NWS Storm Prediction Center Norman OK
0102 AM CST Tue Mar 03 2020
Areas affected...northern middle Tennessee into southeast Kentucky
Concerning...Tornado Watch 36...
Valid 030702Z - 030900Z
The severe weather threat for Tornado Watch 36 continues.
SUMMARY...A tornado threat may persist for a few more counties east
and northeast of the Nashville area. Damaging wind gusts are also
possible, possibly extending into southern Kentucky.
DISCUSSION...A long-lived supercell, now with a confirmed,
potentially intense tornado, continues to move east across the
Nashville area. This southern-most supercell is on the southern
fringe of the larger-scale area of ascent, and firmly within the
local effective SRH maximum where values over 500 m2/s2 exist.
Surface observations indicate a plume of mid 50s F dewpoints extends
east/northeast of this storm, and while instability weakens with
eastern extent, strong shear may allow these storms to persist for
at least an hour.
..Jewell.. 03/03/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MRX...JKL...LMK...OHX...
LAT...LON 36408667 36628604 37028537 37178469 37038451 36468464
36108496 35938561 35938615 36058660 36178681 36408667
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