Storm history › West Pacific › 1998 season
Typhoon Yanni (1998)
Yanni was a Category 1 typhoon of the 1998 West Pacific season. It was tracked from September 24, 1998 to October 2, 1998, about 8 days, and covered 2,349 miles.
At its peak it had winds of 90 mph (150 km/h) and a lowest pressure of 965 mb.
Its closest pass to a major city was 25 miles from Jeju City, South Korea.
- Peak wind
- 90 mph
- Lowest pressure
- 965 mb
- Strongest
- Category 1 typhoon
- Duration
- 8 days
- Track length
- 2,349 mi
- Energy (ACE)
- 4.9
DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5
Closest pass to major cities
| City | Closest pass |
|---|---|
| Jeju City, South Korea | 25 mi (40 km) |
| Gwangju, South Korea | 33 mi (53 km) |
| Masan, South Korea | 33 mi (54 km) |
| Taipei, Taiwan | 65 mi (105 km) |
| Changwon, South Korea | 66 mi (107 km) |
| Banqiao, Taiwan | 68 mi (109 km) |
| New Taipei City, Taiwan | 70 mi (112 km) |
How it compares
- Peak winds: 944th highest of 2,271 West Pacific storms on record, tied with Typhoon Krosa (2025), Typhoon Bualoi (2025), Typhoon Koto (2025) and 95 more.
- Lowest pressure: 825th lowest of 2,047 West Pacific storms with a recorded pressure, tied with Typhoon Roke (2022), Typhoon Cempaka (2021), Typhoon Prapiroon (2000) and 67 more.
- Energy: 4% of the 1998 West Pacific season's ACE.