Typhoon Koinu (2023)
Typhoon Koinu reached Category 4 in the Western Pacific between September 27, 2023 and October 10, 2023, with a lowest pressure of 936 mb, and made landfall.
Track and intensity
The whole track of Typhoon Koinu, colored by strength, with the other storms of the 2023 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.
The storm
- Basin
- Western Pacific
- Dates
- September 27, 2023 to October 10, 2023
- Peak strength
- Category 4, 120 kt (138 mph)
- Lowest pressure
- 936 mb (27.64 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 30.3
- Identifier
- WP142023
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Sep 27, 12:00 | 14.2N 143.8E | 15 kt | 1010 mb | Disturbance |
| Sep 27, 18:00 | 14.7N 143.1E | 15 kt | 1010 mb | Disturbance |
| Sep 28, 00:00 | 15.5N 141.2E | 15 kt | 1010 mb | Disturbance |
| Sep 28, 06:00 | 15.7N 139.9E | 15 kt | 1010 mb | Disturbance |
| Sep 28, 12:00 | 15.8N 138.3E | 20 kt | 1009 mb | Disturbance |
| Sep 28, 18:00 | 15.8N 137.0E | 20 kt | 1009 mb | Disturbance |
| Sep 29, 00:00 | 15.6N 136.1E | 20 kt | 1009 mb | Disturbance |
| Sep 29, 06:00 | 15.5N 135.3E | 20 kt | 1008 mb | Disturbance |
| Sep 29, 12:00 | 15.4N 134.8E | 25 kt | 1007 mb | Tropical depression |
| Sep 29, 18:00 | 15.5N 132.4E | 30 kt | 1001 mb | Tropical depression |
| Sep 30, 00:00 | 15.8N 131.8E | 30 kt | 1001 mb | Tropical depression |
| Sep 30, 06:00 | 16.1N 131.4E | 35 kt | 1000 mb | Tropical storm |
| Sep 30, 12:00 | 16.3N 130.9E | 40 kt | 996 mb | Tropical storm |
| Sep 30, 18:00 | 16.8N 130.2E | 45 kt | 995 mb | Tropical storm |
| Oct 1, 00:00 | 17.5N 129.4E | 55 kt | 990 mb | Tropical storm |
| Oct 1, 06:00 | 17.9N 128.9E | 65 kt | 984 mb | Typhoon |
| Oct 1, 12:00 | 18.3N 128.5E | 75 kt | 977 mb | Typhoon |
| Oct 1, 18:00 | 18.7N 128.0E | 80 kt | 973 mb | Typhoon |
| Oct 2, 00:00 | 19.1N 127.4E | 105 kt | 953 mb | Typhoon |
| Oct 2, 06:00 | 19.6N 126.7E | 110 kt | 950 mb | Typhoon |
| Oct 2, 12:00 | 20.0N 126.1E | 120 kt | 939 mb | Typhoon |
| Oct 2, 18:00 | 20.3N 125.6E | 110 kt | 946 mb | Typhoon |
| Oct 3, 00:00 | 20.6N 125.2E | 105 kt | 949 mb | Typhoon |
| Oct 3, 06:00 | 21.2N 124.9E | 100 kt | 955 mb | Typhoon |
| Oct 3, 12:00 | 21.7N 124.7E | 95 kt | 957 mb | Typhoon |
| Oct 3, 18:00 | 22.0N 124.2E | 90 kt | 963 mb | Typhoon |
| Oct 4, 00:00 | 22.2N 123.5E | 105 kt | 948 mb | Typhoon |
| Oct 4, 06:00 | 22.1N 122.6E | 115 kt | 940 mb | Typhoon |
| Oct 4, 12:00 | 22.1N 121.9E | 120 kt | 936 mb | Typhoon |
| Oct 4, 18:00 | 21.9N 121.2E | 120 kt | 936 mb | Typhoon |
| Oct 5, 00:00 | 22.0N 120.8E | 110 kt | 947 mb | Typhoon |
| Oct 5, 06:00 | 22.1N 120.0E | 90 kt | 961 mb | Typhoon |
| Oct 5, 12:00 | 22.1N 119.0E | 80 kt | 971 mb | Typhoon |
| Oct 5, 18:00 | 21.9N 118.3E | 70 kt | 979 mb | Typhoon |
| Oct 6, 00:00 | 21.8N 117.7E | 90 kt | 965 mb | Typhoon |
| Oct 6, 06:00 | 21.7N 116.8E | 100 kt | 956 mb | Typhoon |
| Oct 6, 12:00 | 21.5N 116.3E | 100 kt | 957 mb | Typhoon |
| Oct 6, 18:00 | 21.2N 115.7E | 105 kt | 953 mb | Typhoon |
| Oct 7, 00:00 | 21.1N 115.4E | 100 kt | 958 mb | Typhoon |
| Oct 7, 06:00 | 21.2N 115.2E | 105 kt | 953 mb | Typhoon |
| Oct 7, 12:00 | 21.3N 115.1E | 100 kt | 957 mb | Typhoon |
| Oct 7, 18:00 | 21.4N 114.9E | 85 kt | 968 mb | Typhoon |
| Oct 8, 00:00 | 21.5N 114.6E | 75 kt | 977 mb | Typhoon |
| Oct 8, 06:00 | 21.6N 114.3E | 80 kt | 973 mb | Typhoon |
| Oct 8, 12:00 | 21.6N 114.0E | 90 kt | 968 mb | Typhoon |
| Oct 8, 18:00 | 21.7N 113.6E | 70 kt | 981 mb | Typhoon |
| Oct 9, 00:00 | 21.8N 113.4E | 50 kt | 994 mb | Tropical storm |
| Oct 9, 06:00 | 21.7N 113.1E | 40 kt | 997 mb | Tropical storm |
| Oct 9, 12:00 | 21.2N 112.5E | 30 kt | 1000 mb | Tropical depression |
| Oct 9, 18:00 | 20.9N 111.8E | 25 kt | 1010 mb | Tropical depression |
| Oct 10, 00:00 | 20.6N 111.3E | 20 kt | 1003 mb | Disturbance |
Other Western Pacific storms of 2023
- Unnamed tropical depressionWestern Pacific · 2023
- Tropical Storm SanvuWestern Pacific · 2023
- Super Typhoon MawarWestern Pacific · 2023
- Typhoon GucholWestern Pacific · 2023
- Typhoon TalimWestern Pacific · 2023
- Super Typhoon DoksuriWestern Pacific · 2023
- Typhoon KhanunWestern Pacific · 2023
- Typhoon LanWestern Pacific · 2023
- Tropical Storm DamreyWestern Pacific · 2023
- Super Typhoon SaolaWestern Pacific · 2023 · 3 deaths
- Typhoon HaikuiWestern Pacific · 2023
- Typhoon KirogiWestern Pacific · 2023
- Tropical Storm Yun-YeungWestern Pacific · 2023
- Unnamed tropical depressionWestern Pacific · 2023
- Super Typhoon BolavenWestern Pacific · 2023
- Tropical Storm SanbaWestern Pacific · 2023
- Unnamed tropical depressionWestern Pacific · 2023
- Tropical Depression JelawatWestern Pacific · 2023
What this means
A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.
Sources
Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.