Friday the 13th (1980) Probably my favorite thunderstorm from any movie. Looks and feels very realistic and lasts more than 5 minutes. Prophecy (1979) Not very long but it certainly adds to the atmosphere. Suspiria (1977) Great opening storm. Terror (1978) Great use of rain, wind and thunder during a cool scene. Honorable Mention: Not really "horror" but me likes the one in The Witches of Eastwick and Identity. List some of your faves.