1970's

  • August 1970: Tropical Storm Maggie passed just south of the Big Island, dropping nearly 10 inches (250 mm) of rain.[10]
  • January 1971: Although not having existed in the Central Pacific as a tropical cyclone, the extratropical low that was Tropical Storm Sarah in the West Pacific passed over Hawaiʻi in mid January, causing high winds and heavy rain.[11]
  • July 1971: Hurricane Denise dissipated before reaching Hawaiʻi, but brought beneficial rain of over one inch to dry farms and sugarcane plantations. Denise's outer winds helped Sheila Scott while she was flying solo around the world, and a boat named Winward Passage win the Transpacific Yacht Race. Both were headed to Honolulu.[11]
  • August 1972: Hurricane Diana dissipated a few miles off shore of the Big Island, dropping over 10 inches (250 mm) of rain in some parts.[12]
  • September 1972: Hurricane Fernanda may have caused flash flooding near Waipio as it passed to the northeast.[12]
  • August 1976: Tropical Storm Gwen passed north of Hawaiʻi, dropping 1–2 inches (25–51 mm) of rain across the entire state.[13]
  • July 1978: Hurricane Fico created 15 feet (4.6 m) waves, felled trees and knocked out power across the islands.[14]