Storm history › West Pacific › 2021 season
Tropical Storm Dianmu (2021)
Dianmu was a tropical storm of the 2021 West Pacific season. It was tracked from September 21, 2021 to September 26, 2021, about 5 days, and covered 1,422 miles.
At its peak it had winds of 40 mph (65 km/h) and a lowest pressure of 1001 mb.
Its closest pass to a major city was 33 miles from Da Nang, Vietnam.
- Peak wind
- 40 mph
- Lowest pressure
- 1001 mb
- Strongest
- Tropical storm
- Duration
- 5 days
- Track length
- 1,422 mi
- Energy (ACE)
- 0.1
DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5
Closest pass to major cities
| City | Closest pass |
|---|---|
| Da Nang, Vietnam | 33 mi (54 km) |
| Huế, Vietnam | 55 mi (89 km) |
| Qui Nhon, Vietnam | 101 mi (162 km) |
| Mawlamyine, Myanmar (Burma) | 127 mi (204 km) |
| Vientiane, Laos | 136 mi (219 km) |
How it compares
- Peak winds: 1952nd highest of 2,271 West Pacific storms on record, tied with Tropical Storm Nangka (2026), Tropical Storm Bailu (2025), Tropical Storm Jongdari (2024) and 74 more.
- Lowest pressure: 1988th lowest of 2,047 West Pacific storms with a recorded pressure, tied with Tropical Storm Banyan (2022), Tropical Depression Krovanh (2020), Tropical Storm Bolaven (2018).
- Energy: 0% of the 2021 West Pacific season's ACE.