The 2018 Pacific hurricane season was one of the most active Pacific hurricane seasons on record, producing the highest accumulated cyclone energy value on record in the basin. The season had the fourth-highest number of named storms – 23. The season also featured eight landfalls, six of which occurred in Mexico. Hurricane Lane strengthened into a Category 5 hurricane and caused torrential rainfall in Hawaii during late August, becoming that state's wettest tropical cyclone on record and the second wettest tropical cyclone in United States history, only behind Hurricane Harvey of the previous year. In mid-September, Hurricane Olivia became the first tropical cyclone to make landfall on the islands of Maui and Lanai in recorded history. Shortly after, Tropical Depression Nineteen-E became the first tropical cyclone to form in the Gulf of California before it brought severe flooding to Sinaloa, Mexico, causing significant damage. Meanwhile, Hurricane Walaka attained Category 5 intensity before causing disruptions in the Northwestern Hawaiian Islands. In late October, Hurricane Willa became the record-tying third Category 5 hurricane of the season before striking Sinaloa as a major hurricane, causing severe destruction. Damage across the basin reached $1.46 billion (2018 USD), while 56 people were killed by the various storms.
