[BNAWX] Severe Storm Outlook Narrative

EMWIN Server emwin at nashvilleweather.net
Fri Mar 24 21:07:45 CDT 2023


ACUS11 KWNS 250207
SWOMCD
SPC MCD 250207
ALZ000-TNZ000-MSZ000-250330-

Mesoscale Discussion 0331
NWS Storm Prediction Center Norman OK
0907 PM CDT Fri Mar 24 2023

Areas affected...Parts of northwestern AL into Middle TN

Concerning...Severe potential...Watch likely

Valid 250207Z - 250330Z

Probability of Watch Issuance...95 percent

SUMMARY...The risk of severe storms capable of all hazards will
increase over portions of northwestern AL into Middle TN during the
next few hours. A watch issuance is likely before 0230Z.

DISCUSSION...A QLCS is tracking eastward across western TN into
northern MS, while northeastward-moving supercells are ongoing over
northern into central MS. As a large-scale trough evident in water
vapor imagery continues eastward this evening, the warm sector
(characterized by middle/upper 60s dewpoints) will spread eastward
into parts of western AL and Middle TN. At the same time, a
strengthening low-level jet will also shift eastward over the warm
sector, favoring a continuation of the severe storms with eastward
extent. Large/clockwise-turning hodographs (sampled by regional VWP)
will support organized storms including supercells (even if embedded
in a line) with a risk of tornadoes, damaging winds, and large hail.
A watch will likely be issued for parts of this area before 0230Z.

..Weinman/Thompson.. 03/25/2023

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

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

LAT...LON   33258829 34048822 34568815 35168797 35398767 35408714
            35268643 34888600 34468602 33848685 33118732 32838768
            32928829 33258829
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