The 2016 Pacific hurricane season was an extraordinarily active Eastern Pacific hurricane season. With billions of dollars in damage and hundreds of fatalities occuring, this made 2016 the costliest and one of the deadliest Pacific hurricane seasons ever. The large amount of impact were primarily due to exceptionally intense El Niño conditions and abnormally warm sea surface temperatures (sea surface temperatures) in place for the majority of the season. The 2016 Pacific season began on May 15, 2016 for the National Hurricane Center (NHC's) area of jurisdiction and June 1, 2016 for the Central Pacific Hurricane Center (CPHC's) area of jurisdiction, and it ended on November 30, 2016 for both regions. These dates conventionally delimit the time period where nearly all tropical cyclones form