| 1970 Pacific hurricane season | |
|---|---|
 Season summary map | |
| Seasonal boundaries | |
| First system formed | May 30, 1970 |
| Last system dissipated | November 8, 1970 |
| Strongest storm | |
| Name | Lorraine |
| • Maximum winds | 100 mph (155 km/h) (1-minute sustained) |
| • Lowest pressure | 963 mbar (hPa; 28.44 inHg) |
| Seasonal statistics | |
| Total depressions | 21 |
| Total storms | 19 |
| Hurricanes | 5 |
| Major hurricanes (Cat. 3+) | 0 |
| Total fatalities | 0 direct, 22 indirect |
| Total damage | Unknown |
| Related articles | |
The 1970 Pacific hurricane season was an active Northern hemisphere hurricane season, especially during its early months. It officially started on May 15, 1970, in the eastern Pacific Ocean (east of 140°W), and on June 1, 1970, in the central Pacific (between 140°W and the International Date Line). It ended on November 30, 1970, in both regions. These dates conventionally delimit the period of each year when most tropical cyclogenesis occurs in these parts of the Pacific.
This season had an above average number of storms. There were 21 tropical cyclones, of which 18 reached tropical storm strength. Four storms became hurricanes, of which none reached major hurricane strength. In the central Pacific, one hurricane and one tropical depression formed. One of the depressions crossed the Date Line to become a typhoon in the western Pacific.