SMWLIX The National Weather Service in New Orleans has issued a * Special Marine Warning for. Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm. Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm. Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM. Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM. * Until noon CDT. * At 1055 AM CDT, a cluster of severe thunderstorms capable of producing waterspouts was located along a line extending from 16 nm west of Southwest Pass Of the Mississippi River to 32 nm southeast of Louisiana Offshore Oil Port, moving northeast at 30 knots. HAZARD. Waterspouts, wind gusts 34 knots or greater, and small hail. SOURCE. Radar. IMPACT. Waterspouts can quickly form and capsize boats. damage vessels and oil rigs. and create suddenly higher waves. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include. Southwest Pass Of the Mississippi River.