Mesoscale Discussion 1008 NWS Storm Prediction Center Norman OK 1252 AM CDT Mon May 27 2024 Areas affected...southeastern Arkansas...northern Louisiana...western and Middle Tennessee...northern Mississippi...and northern Alabama Concerning...Tornado Watch 326...328...329... Valid 270552Z - 270745Z The severe weather threat for Tornado Watch 326, 328, 329 continues. SUMMARY...Strong/locally severe storms continue within a band from northern and western Tennessee west-southwestward to the Arklatex. Risk for locally damaging winds and hail, and a tornado or two, continues. Southeastward expansion of the convection into northern parts of Mississippi and Alabama will likely require new WW issuance. DISCUSSION...Latest radar loop shows a continues line of storms extending west-southwest to east-northeast across northern Middle and western Tennessee, which is sagging slowly southward. Meanwhile, a broken -- but more intense -- band of storms extends from western Tennessee southwestward to the Arklatex region. This convection is ongoing within a much more unstable environment (mixed-layer CAPE 3000 to 5000 J/kg across this area), and is a bit less shear-parallel than the more west-to-east Tennessee band of storms. As this stronger convection shifts gradually eastward over the next 1 to 2 hours, it will begin to impinge on eastern portions of WW 328 and, later, 329. Other, isolated storms are also developing across northwestern Alabama, south of the Middle Tennessee line of storms. Overall, with ample instability extending into northern Mississippi and -- to a lesser degree -- northern Alabama, new WW issuance will likely be needed soon over portions of northern Mississippi and northern Alabama. Southeastward extent of the risk should remain limited (into Georgia, and central portions of Alabama), given much weaker instability, and higher convective inhibition. ..Goss.. 05/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MRX...OHX...BMX...HUN...MEG...JAN...LZK...SHV... LAT...LON 35638594 35418555 34698567 33858600 33218976 32479262 32779341 33719267 35488938 35708807 35828712 35638594