XOUS53 KWBC 251603 CAPGRR NWS-IDP-PROD-4410379-3676041 w-nws.webmaster@noaa.gov 2020-08-25T12:03:00-04:00 Actual Update Public IPAWSv1.0 w-nws.webmaster@noaa.gov,NWS-IDP-PROD-4410195-3675787,2020-08-25T11:00:00-04:00 en-US Met Special Marine Warning Avoid Immediate Severe Likely SAME NWS NationalWeatherService MAW 2020-08-25T12:03:00-04:00 2020-08-25T12:03:00-04:00 2020-08-25T12:11:00-04:00 NWS Grand Rapids MI Special Marine Warning issued August 25 at 12:03PM EDT until August 25 at 12:00PM EDT by NWS Grand Rapids MI The affected areas were... Nearshore Waters from Holland to Pentwater MI... Open Waters from Grand Haven to Pentwater MI... Thunderstorms had moved out of the area towards Holland and therefore no longer pose a significant threat to boaters in this area that had been warned. http://www.weather.gov eventMotionDescription 2020-08-25T12:01:00.000-04:00...storm...300DEG...36KT...43.21,-85.99 NWSheadline THE SPECIAL MARINE WARNING EXPIRED AT 1200 PM EDT VTEC /O.EXP.KGRR.MA.W.0036.000000T0000Z-200825T1600Z/ PIL GRRMWSGRR BLOCKCHANNEL CMAS BLOCKCHANNEL EAS BLOCKCHANNEL NWEM eventEndingTime 2020-08-25T12:00:00-04:00 Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to Mid Lake; Grand Haven to Whitehall MI; Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid Lake; Holland to Grand Haven MI; Whitehall to Pentwater MI 43.01,-86.25 43.39,-87.01 43.63,-86.71 43.52,-86.48 43.36,-86.42 43.14,-86.28 43.02,-86.23 43.01,-86.25 UGC LMZ872 UGC LMZ847 UGC LMZ870 UGC LMZ846 UGC LMZ848 SAME 092872 SAME 092847 SAME 092870 SAME 092846 SAME 092848