At 144 PM EDT, Doppler radar was tracking a strong thunderstorm near Argos, or 7 miles north of Rochester, moving northeast at 55 mph. HAZARD. Wind gusts up to 50 mph and half inch hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include. Warsaw, Plymouth, Nappanee, Rochester, Bremen, Syracuse, Bourbon, Argos, Milford, Akron, Mentone, Walnut, Tippecanoe, Etna Green, Leesburg, Burket, Monoquet, Hoffman Lake, Atwood, and Old Tip Town.

* WHAT. High wave action, strong currents, and dangerous swimming conditions expected for Memorial Day. Piers may be heavily swamped by waves. * WHERE. Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN. From Monday morning through Monday evening. * IMPACTS. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

* WHAT. West winds 10 to 20 knots with gusts up to 30 knots and waves 3 to 5 feet expected. * WHERE. St Joseph to Manistee. * WHEN. From 8 AM to 8 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.