* WHAT. Areas of dense fog are expected to redevelop this evening and reduce visibility to 1 mile or much less. * WHERE. Northern Open Waters of Lake Michigan. * WHEN. Until 1 AM CDT Sunday. * IMPACTS. Low visibility will make navigation difficult.

SMWGRR The National Weather Service in Grand Rapids has issued a * Special Marine Warning for. Nearshore and Open Waters from Pentwater to Manistee MI. * Until 1215 AM EDT. * At 1012 PM EDT, a severe thunderstorm was located 21 nm west of Big Sable Point Light, moving northeast at 30 knots. HAZARD. Wind gusts 34 knots or greater and large hail. SOURCE. Radar. IMPACT. Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * Locations impacted include. Ludington Light and Pentwater Pier Heads.

For the following areas. Nearshore and Open Waters from Pentwater to Manistee MI. At 1054 PM EDT, a strong thunderstorm was located near Big Sable Point Light, moving northeast at 30 knots. HAZARD. Wind gusts 34 knots or greater and small hail. SOURCE. Radar indicated. IMPACT. Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include. Ludington Light and Pentwater Pier Heads.

* WHAT. West winds to 25 knots and waves 2 to 4 feet. * WHERE. Whitehall to Manistee. * WHEN. Until 8 AM EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. For the Small Craft Advisory, south winds to 25 knots and waves 2 to 4 feet. For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. * WHERE. St Joseph to Whitehall. * WHEN. For the Small Craft Advisory, until 8 AM EDT Sunday. For the Dense Fog Advisory, from 2 AM to 8 PM EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

* WHAT. For the Small Craft Advisory, south winds to 25 knots and waves 2 to 4 feet. For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. * WHERE. St Joseph to Whitehall. * WHEN. For the Small Craft Advisory, until 8 AM EDT Sunday. For the Dense Fog Advisory, from 2 AM to 8 PM EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

* WHAT. Areas of dense fog are expected to redevelop this evening and reduce visibility to 1 mile or much less. * WHERE. Northern Open Waters of Lake Michigan. * WHEN. Until 1 AM CDT Sunday. * IMPACTS. Low visibility will make navigation difficult.