Storm history › West Pacific › 1977 season
Tropical Storm Emma (1977)
Emma was a tropical storm of the 1977 West Pacific season. It was tracked from September 12, 1977 to September 21, 1977, about 10 days, and covered 4,019 miles.
At its peak it had winds of 70 mph (110 km/h) and a lowest pressure of 965 mb.
Its closest pass to a major city was 96 miles from Chiba, Japan.
- Peak wind
- 70 mph
- Lowest pressure
- 965 mb
- Strongest
- Tropical storm
- Duration
- 10 days
- Track length
- 4,019 mi
- Energy (ACE)
- 6.2
DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5
Closest pass to major cities
| City | Closest pass |
|---|---|
| Chiba, Japan | 96 mi (155 km) |
| Yokosuka, Japan | 105 mi (169 km) |
| Honchō, Japan | 106 mi (171 km) |
| Ichikawa, Japan | 111 mi (179 km) |
| Edogawe, Japan | 111 mi (179 km) |
| Suginami, Japan | 112 mi (180 km) |
| Yokohama, Japan | 112 mi (180 km) |
How it compares
- Peak winds: 1326th highest of 2,271 West Pacific storms on record, tied with Tropical Storm Mun (2025), Tropical Storm Prapiroon (2024), Tropical Storm Damrey (2023) and 94 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 1977 West Pacific season's ACE.