Storm history › West Pacific › 1999 season
Tropical Storm Ann (1999)
Ann was a tropical storm of the 1999 West Pacific season. It was tracked from September 14, 1999 to September 20, 1999, about 6 days, and covered 1,099 miles.
At its peak it had winds of 50 mph (85 km/h) and a lowest pressure of 985 mb.
Its closest pass to a major city was 47 miles from Chongming, China.
- Peak wind
- 50 mph
- Lowest pressure
- 985 mb
- Strongest
- Tropical storm
- Duration
- 6 days
- Track length
- 1,099 mi
- Energy (ACE)
- 2.4
DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5
Closest pass to major cities
| City | Closest pass |
|---|---|
| Chongming, China | 47 mi (75 km) |
| Baoshan, China | 65 mi (104 km) |
| Yangpu, China | 69 mi (111 km) |
| Jeju City, South Korea | 70 mi (112 km) |
| Pudong, China | 70 mi (113 km) |
| Hongkou, China | 71 mi (114 km) |
| Huangpu, China | 71 mi (115 km) |
How it compares
- Peak winds: 1666th highest of 2,271 West Pacific storms on record, tied with Tropical Storm Etau (2026), Tropical Storm Krovanh (2026), Tropical Storm Lingling (2025) and 136 more.
- Lowest pressure: 1319th lowest of 2,047 West Pacific storms with a recorded pressure, tied with Tropical Storm Cimaron (2024), Tropical Storm Talas (2022), Tropical Storm Nida (2021) and 103 more.
- Energy: 2% of the 1999 West Pacific season's ACE.