Overview

The 2008 Pacific hurricane season officially began on May 15 in the Eastern Pacific and ran through November 30 for both the Eastern and Central Pacific basins. During that period the basin produced 17 named storms, of which seven strengthened to hurricane intensity. These figures place the 2008 season close to long‑term averages for the region.

Storm classifications and parts of the basin

Pacific tropical cyclones are categorized by intensity and tracked by separate agencies depending on longitude. Typical classifications include tropical depression, tropical storm (named), hurricane, and major hurricane (Category 3 or higher on the Saffir–Simpson scale). The Eastern North Pacific (east of 140°W) is primarily monitored by the National Hurricane Center, while the Central Pacific (140°W to the International Date Line) is the responsibility of the Central Pacific Hurricane Center.

Factors that influenced the 2008 season

Seasonal activity in the Pacific is shaped by sea surface temperatures, vertical wind shear, and large‑scale climate patterns such as El Niño–Southern Oscillation (ENSO). Warmer waters and reduced shear favor storm formation and intensification, while La Niña conditions typically suppress activity. Forecasters assess these drivers before and during the season to estimate expected activity; official timing and background information are published by meteorological agencies (seasonal start, seasonal summary).

Impacts and significance

Most Pacific storms remain over open ocean, but some systems bring heavy rainfall, flooding, or surf to coastal Mexico, Central America, and occasionally Hawaii. Even seasons near the average can produce individual storms with notable local impacts, making preparedness and monitoring important for vulnerable coastal communities.

Monitoring, records and further reading

Post‑season reports and storm best‑track data are archived by the responsible agencies and provide the detailed record of each storm's track, intensity, and impacts. For official analyses and the complete dataset from 2008, see the season archive and reports (detailed archive).

  • Typical season dates: May 15–November 30 (Eastern Pacific start on May 15; Central Pacific aligns with June 1 start in many years)
  • 2008 totals: 17 named storms, 7 hurricanes (near average)
  • Key agencies: National Hurricane Center, Central Pacific Hurricane Center