The name Mac has been used for four tropical cyclones, all in the Western Pacific Ocean:Severe Tropical Storm Mac (1979) – crossed southern Luzon and then made landfall near Hong Kong Typhoon Mac (1982) – an intense Category 5-equivalent typhoon that stayed at sea throughout its existence Tropical Storm Mac (1986) – an early-season storm that brushed the coasts of Taiwan and northern Luzon Typhoon Mac (1989) – a moderately strong typhoon which struck Japan