


Special Marine Warning
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
560 WHUS53 KLOT 291749 SMWLOT LMZ741-742-291830- /O.NEW.KLOT.MA.W.0022.250629T1749Z-250629T1830Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Chicago/Romeoville 1249 PM CDT Sun Jun 29 2025 The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Wilmette Harbor to Calumet Harbor... * Until 130 PM CDT. * At 1248 PM CDT, a strong thunderstorm was located over 59th Street Marina, or over 31st Street Harbor, moving northeast at 10 knots. HAZARD...Wind gusts to 40 knots and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Jackson Park Harbor, Burnham Harbor, 31st Street Harbor, and Monroe Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4185 8761 4187 8761 4194 8754 4192 8752 4186 8752 4181 8748 4175 8754 TIME...MOT...LOC 1748Z 205DEG 11KT 4181 8760 HAIL...<.75IN WIND...40KTS $$ Kluber