 The name Fico was subsequently retired after the system had affected Hawaii in 1978, while the name Knut was removed after being used in 1987 for unknown reasons having barely reaching tropical storm strength.In 1989 the name Iva was removed as it was pronounced very similarly to Hurricane Iwa, which was retired from the Central Pacific lists of names in 1982 after affecting Hawaii.In the early 1990s the names Fefa and Ismael were both retired after they affected Hawaii and Northern Mexico, respectively.