ZCZC SPCSWOMCD ALL
ACUS11 KWNS 280142 
SPC MCD 280142 
ALZ000-TNZ000-MSZ000-ARZ000-LAZ000-280315-

Mesoscale Discussion 0291
NWS Storm Prediction Center Norman OK
0842 PM CDT Sat Mar 27 2021

Areas affected...western Tennessee into northern Mississippi

Concerning...Tornado Watch 59...

Valid 280142Z - 280315Z

The severe weather threat for Tornado Watch 59 continues.

SUMMARY...A replacement tornado watch will be issued, which will
extend farther south into northern Mississippi.

DISCUSSION...Numerous storms persist from southern AR into TN, with
supercells approaching northwest MS over the next 1-2 hours. MLCAPE
over 2000 J/kg remains over the region owing to a very moist air
mass. Strong southwesterlies aloft are resulting in long hodographs,
with southerly low-level flow aiding supercell potential as well.
Area VWPs show effective SRH generally averaging 200-300 m2/s2,
which will support a continued supercell threat. While cellular
storm mode is likely for a few hours, the eventual arrival of the
cold front as well as merging outflows may result in a linear mode
later tonight. All modes of severe will be possible.

..Jewell/Grams.. 03/28/2021

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

ATTN...WFO...OHX...HUN...MEG...JAN...

LAT...LON   35498796 35188799 34808814 33988882 32958976 32689059
            32669096 32899115 33589090 34189076 34789049 35369000
            35578906 35498796 

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