| 1999 Pacific hurricane season | |
|---|---|
 Season summary map | |
| Seasonal boundaries | |
| First system formed | June 18, 1999 |
| Last system dissipated | October 11, 1999 |
| Strongest storm | |
| Name | Dora |
| • Maximum winds | 140 mph (220 km/h) (1-minute sustained) |
| • Lowest pressure | 943 mbar (hPa; 27.85 inHg) |
| Seasonal statistics | |
| Total depressions | 14 |
| Total storms | 9 |
| Hurricanes | 6 |
| Major hurricanes (Cat. 3+) | 2 |
| Total fatalities | 16 total |
| Total damage | None |
| Related articles | |
The 1999 Pacific hurricane season was one of the least active Pacific hurricane seasons on record. The season officially began on May 15 in the Eastern Pacific, and on June 1 in the Central Pacific; in both basins, it ended on November 30. These dates conventionally delimit the period during which most tropical cyclones form in the northeastern Pacific Ocean. The first tropical cyclone of the season, Hurricane Adrian, developed on June 18, while the final storm of the season, Tropical Storm Irwin, dissipated on October 11. No storms developed in the Central Pacific during the season. However, two storms from the Eastern Pacific, Dora and Eugene, entered the basin, with the former entering as a hurricane and becoming the second farthest travelling Pacific hurricane on record.
The season produced fourteen tropical cyclones and nine named storms, which was well below the average of sixteen named storms per season; this was largely due to a strong La Niña taking over much of the Pacific. However, the total of six hurricanes and two major hurricanes during the season was near the averages of eight and three, respectively. Although it remained offshore, Hurricane Adrian caused 6 deaths from flooding and rough surf in Mexico. The deadliest tropical cyclone, Hurricane Greg, killed 10 people from flooding in Mexico.