Hurricane Calvin (2023)
- July 2023
- Category 3 peak
Calvin came within 139 km of Hawaii, passing to the south as a tropical storm on 19 July 2023. It had peaked far out at sea at 110 kt and was weakening as it neared the islands. At 00:00 UTC on 13 July 2023 the official forecast had it passing within 3 km of Hawaii about 156 hours later — considerably closer than it eventually came.
Replay the forecasts, advisory by advisory
- Peak intensity
- 110 kt (127 mph) Category 3
- Lowest pressure
- 953 mb
- Closest pass
- 139 km (86 mi) from Hawaii
- When
- 19 July 2023
- Distance from Honolulu
- 380 km (236 mi)
- Lifetime
- 10 days 10 July 2023 – 19 July 2023
- Official forecasts
- 33
- Approached from the
- south
The closest pass
At its closest, Calvin was 139 km (86 mi) from Hawaii on 19 July 2023, as a tropical storm with 45 kt (52 mph) winds, approaching from the south.
The forecasts
The archive holds 33 official forecast packages for Calvin, issued between 11 July 2023 and 19 July 2023. The replay shows each one as it stood at the moment it was issued — not the track we know now.
| Lead time | Mean track error |
|---|---|
| 24 h | 26 nm |
| 48 h | 34 nm |
| 72 h | 51 nm |