[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 250005
SWOMCD
SPC MCD 250005
NCZ000-GAZ000-TNZ000-ALZ000-250100-

Mesoscale Discussion 0230
NWS Storm Prediction Center Norman OK
0705 PM CDT Tue Mar 24 2020

Areas affected...northern AL...southern TN...northwestern GA

Concerning...Tornado Watch 61...

Valid 250005Z - 250100Z

The severe weather threat for Tornado Watch 61 continues.

SUMMARY...A new convective watch is possible to the east of Tornado
Watch #61.  A tornado risk will continue this evening for portions
of northern AL and southern middle TN.

DISCUSSION...Trends in KHTX VAD show further intensification of the
low-level wind profile during the past 1-2 hours.  0-1 km SRH has
increased from around 300 m2/s2 to over 600 m2/s2.  Surface analysis
indicates the area with the lowest temperature/dewpoint spreads (10
deg F) is in the counties adjacent to the TN border in northern AL.
Farther south, warmer temperatures have resulted in spreads in the
15-20 deg F range which would lessen but not nullify tornado
potential.  Given the strengthening low-level shear for mesocyclone
organization/persistence, it seems plausible the tornado risk will
eventually include the eastern counties of Tornado Watch #61 later
this evening.  An additional convective watch issuance is possible
to the east of the ongoing watch during the next hour or so.

..Smith.. 03/25/2020

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

ATTN...WFO...MRX...FFC...OHX...BMX...HUN...

LAT...LON   35318623 35338448 34868405 34378403 33868471 34158780
            34458778 35318623
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