[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 282220
SWOMCD
SPC MCD 282219
TNZ000-GAZ000-ALZ000-MSZ000-290015-

Mesoscale Discussion 1618
NWS Storm Prediction Center Norman OK
0519 PM CDT Fri Aug 28 2020

Areas affected...northern Alabama into southern Middle Tennessee

Concerning...Tornado Watch 467...

Valid 282219Z - 290015Z

The severe weather threat for Tornado Watch 467 continues.

SUMMARY...The threat for a few tornadoes persists across northern
Alabama, and may eventually develop northeastward toward Chattanooga
before weakening this evening.

DISCUSSION...Several supercells are currently ongoing over northern
AL, with persistent midlevel rotation. The HTX VWP shows sufficient
0-1 SRH for a tornado threat at around 150 m2/s2, and surface
observations continue to show modest pressure falls downstream.

The air mass also remains very moist with GPS PWAT values over 2.00"
over northeast AL/northwest GA. While at least some diurnal decrease
is possible after 01Z, conditions will remain favorable for
tornadoes for a few hours, perhaps reaching as far northeast as
Chattanooga. If storms remain severe through 01Z, an additional
watch could be considered.

..Jewell.. 08/28/2020

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

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

LAT...LON   33498832 33748834 34078784 34588741 35108710 35348655
            35408569 35308524 35058510 34618527 34248567 33498723
            33388795 33408817 33498832
This weather bulletin was brought to you by:
https://www.nashvilleweather.net

Follow us on Facebook at:
https://www.facebook.com/nashvilleweather

Follow us on Twitter at:
https://twitter.com/nashwxnet