FZUS73 KGRR 181813 MWSGRR Marine Weather Statement National Weather Service Grand Rapids MI 213 PM EDT Mon May 18 2026 LMZ844>846-874-876-878-181822- /O.CAN.KGRR.MA.W.0027.000000T0000Z-260518T1830Z/ 213 PM EDT Mon May 18 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore and Open Waters from St Joseph to Grand Haven MI... The thunderstorms have moved out of the area and no longer pose a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 800 PM EDT for southwestern Michigan. LAT...LON 4253 8656 4289 8657 4306 8625 4294 8622 4269 8621 4245 8626 4225 8635 4211 8649 TIME...MOT...LOC 1810Z 225DEG 43KT 4297 8612 4277 8594 4245 8580 $$ THOMAS