FZUS73 KLOT 150237 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 937 PM CDT Tue Apr 14 2026 LMZ740-777-150330- /O.CON.KLOT.MA.W.0022.000000T0000Z-260415T0330Z/ 937 PM CDT Tue Apr 14 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT... For the following areas... Nearshore Waters from Winthrop Harbor to Wilmette Harbor... Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid Lake... At 936 PM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 24 nm southeast of Wind Pt. to 9 nm east of Waukegan Harbor to 12 nm north of Ohare Airport, moving east at 45 knots. HAZARD...Waterspouts and wind gusts in excess of 50 knots. SOURCE...Radar and surface observations. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Winthrop Harbor and Waukegan Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until midnight CDT for northeastern Illinois...and the adjacent waters of Lake Michigan. Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4246 8702 4212 8696 4211 8760 4208 8768 4214 8775 4227 8783 4248 8780 TIME...MOT...LOC 0236Z 284DEG 46KT 4261 8725 4235 8760 4218 8798 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...50KTS $$ Carlaw