WHUS53 KMKX 181642 SMWMKX LMZ646-675-181815- /O.NEW.KMKX.MA.W.0030.260518T1642Z-260518T1815Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Milwaukee/Sullivan WI 1142 AM CDT Mon May 18 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Special Marine Warning for... Lake Michigan nearshore and open waters to mid lake Wind Point WI TO Winthrop Harbor IL... * Until 115 PM CDT. * At 1141 AM CDT, strong thunderstorms were located along a line extending from Waukegan Harbor, to 15 nm southeast of Winthrop Harbor, to 21 nm northeast of Harrison-Dever Crib, to near Michigan City, moving northeast at 35 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Airport and marine observations. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4249 8780 4259 8782 4279 8748 4278 8706 4246 8702 TIME...MOT...LOC 1641Z 224DEG 37KT 4238 8781 4234 8750 4210 8715 4175 8695 HAIL...0.00IN WIND...40KTS $$ WOOD