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| Meteorological history | |
|---|---|
| Formed | July 29, 1971 |
| Extratropical | August 9 |
| Dissipated | August 10, 1971 |
| Unknown-strength storm | |
| 10-minute sustained (JMA) | |
| Lowest pressure | 935 hPa (mbar); 27.61 inHg |
| Category 2-equivalent typhoon | |
| 1-minute sustained (SSHWS/JTWC) | |
| Highest winds | 155 km/h (100 mph) |
| Overall effects | |
| Fatalities | 90 confirmed |
| Missing | 7 |
| Damage | Unknown |
| Areas affected | Caroline Islands, Northern Mariana Islands, Ryukyu Islands, Korea, Japan, South Sakhalin, Kuril Islands |
Part of the 1971 Pacific typhoon season | |
Typhoon Olive was an erratic and slightly long-lived tropical cyclone that impacted Japan and affected Manchuria during early-August 1971. It severely disrupted the 13th World Scout Jamboree, which was being held in Fujinomiya, Shizuoka Prefecture. The twentieth depression, nineteenth named storm, and twelfth typhoon of the 1971 Pacific typhoon season, the system was first noted as an area of circulation in a near-equatorial trough, located to the east of Guam on July 24. After moving through the area, the system took a northward direction due to the influence of a trough. It then commenced a northeast move before organizing, though it didn't strengthen to a tropical depression until July 29. Slow but gradual intensification occurred, becoming a tropical storm in the early hours of July 31 as it moved to the west, before taking a north-northwest track as it intensified to a typhoon on August 2 while approaching the Ryukyu Islands. On the next day, it reached its peak intensity of 155 km/h (95 mph) and an unusually low barometric pressure of 935 mbar, equivalent to a mid-level typhoon as it started to batter the third-largest island of Japan, Kyushu. It then moved to the north, while weakening back to a minimal typhoon before making landfall on the area, with the records pointing it to the east of Nagasaki on August 5. It rapidly weakened while traversing Kyushu, before entering the Sea of Japan. At this time, it passed near the southern part of Korea before curving to the northeast. It then passed near Russian Manchuria before weakening below gale-force, shortly before becoming extratropical as it passed through the La Pérouse Strait on August 9. It then accelerated through the Pacific Ocean before dissipating on the next day.
90 deaths were attributed from Olive, with the majority in Japan. The system also caused widespread flooding and landslides through the country and nearby South Korea. The total damages are unknown.