MD 0906 CONCERNING SEVERE THUNDERSTORM WATCH 249… FOR CENTRAL NE
Mesoscale Discussion 0906 NWS Storm Prediction Center Norman OK 1121 PM CDT Tue May 30 2023 Areas affected...Central NE Concerning...Severe Thunderstorm Watch 249... Valid 310421Z - 310615Z The severe weather threat for Severe Thunderstorm Watch 249 continues. SUMMARY...Isolated severe wind gusts remain possible with squall line as it advances east late this evening. DISCUSSION...Convection that developed over southeast WY has progressed downstream and matured into an MCS roughly 300mi long from southwest NE into central SD. Leading edge of this complex is characterized by a robust squall line that is producing gusty winds, occasionally approaching/exceeding severe criteria, especially northwest of LBF. LLJ has strengthened to near 25kt ahead of this activity which appears to be partly responsible for the organizational structure of this activity. Squall line should advance through the remainder of ww249 in the next 1-2 hr but overall convective trends do not favor an appreciable severe threat downstream. At this time a new ww is not anticipated. ..Darrow.. 05/31/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LBF...UNR... LAT...LON 41030075 43040020 42869957 41140005 41030075
