MD 1081 CONCERNING SEVERE THUNDERSTORM WATCH 304… FOR PORTIONS OF FAR SOUTHERN/COASTAL MS AND SOUTHEASTERN LA

Mesoscale Discussion 1081 NWS Storm Prediction Center Norman OK 0350 PM CDT Thu Jun 15 2023 Areas affected...Portions of far southern/coastal MS and southeastern LA Concerning...Severe Thunderstorm Watch 304... Valid 152050Z - 152215Z The severe weather threat for Severe Thunderstorm Watch 304 continues. SUMMARY...An isolated hail threat may continue in the short term. The need for an additional watch beyond 22Z (5 PM CDT) remains uncertain. DISCUSSION...Convection has recently weakened across far southern MS into southeastern LA. This may be occurring as weak large-scale subsidence occurs behind a low-amplitude shortwave trough. The environment remains very favorable for severe thunderstorms, with very strong to extreme instability and strong deep-layer shear present. If these thunderstorms can restrengthen in the next hour, or any additional robust thunderstorms develop, they would pose a threat for large hail. Given recent trends, it is not clear that an additional watch will be needed beyond the scheduled expiration time of Severe Thunderstorm Watch 304 (22Z/5 PM CDT). ..Gleason.. 06/15/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LIX... LAT...LON 30549054 30948996 30138919 29378955 29869049 30549054




