XOUS53 KWBC 251109 CAPGRR NWS-IDP-PROD-4410018-3675694 w-nws.webmaster@noaa.gov 2020-08-25T07:08:00-04:00 Actual Alert Public IPAWSv1.0 en-US Met Special Marine Warning Avoid Immediate Severe Likely SAME SMW NationalWeatherService MAW 2020-08-25T07:08:00-04:00 2020-08-25T07:08:00-04:00 2020-08-25T08:15:00-04:00 NWS Grand Rapids MI Special Marine Warning issued August 25 at 7:08AM EDT until August 25 at 8:15AM EDT by NWS Grand Rapids MI The National Weather Service in Grand Rapids has issued a * Special Marine Warning for... Open Waters from St Joseph to Grand Haven MI... * Until 815 AM EDT. * At 708 AM EDT, strong thunderstorms were located along a line extending from 29 nm west of Grand Haven Light to 25 nm southeast of Wind Pt., moving south at 50 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will continue South at 50 knots. 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. http://www.weather.gov eventMotionDescription 2020-08-25T07:08:00.000-04:00...storm...339DEG...51KT...42.95,-86.92 42.6,-87.24 hailSize Up to 0.75 VTEC /O.NEW.KGRR.MA.W.0033.200825T1108Z-200825T1215Z/ EAS-ORG WXR PIL GRRSMWGRR BLOCKCHANNEL CMAS BLOCKCHANNEL EAS BLOCKCHANNEL NWEM eventEndingTime 2020-08-25T08:15:00-04:00 Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake; Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid Lake; Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake 43.06,-87.1 43.06,-86.33 42.94,-86.3 42.7,-86.29 42.49,-86.33 42.31,-86.42 42.13,-86.57 42.12,-86.96 43.06,-87.1 UGC LMZ878 UGC LMZ874 UGC LMZ876 SAME 092878 SAME 092874 SAME 092876