Storm Prediction Center Mesoscale Discussion 717

   Mesoscale Discussion 0717
   NWS Storm Prediction Center Norman OK
   0742 PM CDT Wed May 08 2024

   Areas affected...northern Alabama...southern Middle and into eastern
   Tennessee...northwestern Georgia...and far western North Carolina

   Concerning...Tornado Watch 211...

   Valid 090042Z - 090245Z

   The severe weather threat for Tornado Watch 211 continues.

   SUMMARY...Severe/tornado threat is increasing across Tornado Watch
   211 -- from the Tennessee Valley into the southern Appalachians.

   DISCUSSION...Latest radar loop across the region shows storms
   increasing rapidly in coverage and intensity from northern Alabama
   and southern Middle Tennessee, eastward to southeastern Tennessee
   and northwestern Georgia.  This appears to be occurring in response
   to an increase in low-level warm advection, associated with a
   gradually veering low-level jet.  Meanwhile, strong storms --
   including a long-lived supercell now moving into the Warren County
   Tennessee vicinity -- are expected to continue moving eastward out
   of WW 206 into Tornado Watch 211 in the next hour or so.

   With this area on the eastern edge of a very moist/unstable airmass
   across the lower Mississippi and Tennessee Valleys, and shear
   favoring organized/rotating storms, severe/isolated tornado risk
   should continue to increase in the short term, across this area.

   ..Goss.. 05/09/2024

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

   ATTN...WFO...GSP...MRX...JKL...FFC...OHX...BMX...HUN...MEG...

   LAT...LON   34508813 35318797 35508669 35478597 35878515 36598472
               36598392 35138364 34308380 34058676 34508813