Tropical Storm Koguma (2021)
Tropical Storm Koguma peaked at 35 kt in the Western Pacific between June 10, 2021 and June 13, 2021, with a lowest pressure of 996 mb, and made landfall.
Track and intensity
The whole track of Tropical Storm Koguma, colored by strength, with the other storms of the 2021 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
- June 10, 2021 to June 13, 2021
- Peak strength
- Tropical Storm, 35 kt (40 mph)
- Lowest pressure
- 996 mb (29.41 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 0.1
- Tropical-storm-force wind reached
- 25 nmi (46 km, 29 mi) from the center at its widest
- Eyewall radius at its peak
- 20 nmi (37 km, 23 mi)
- Overall size
- 225 nmi (417 km, 259 mi) to the outermost closed isobar
- Fastest the center moved
- 20 kt (23 mph)
- Identifier
- WP052021
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Jun 10, 06:00 | 17.6N 115.4E | 15 kt | 1000 mb | Disturbance |
| Jun 10, 12:00 | 17.8N 114.8E | 15 kt | 1000 mb | Disturbance |
| Jun 10, 18:00 | 17.9N 114.2E | 15 kt | 1000 mb | Disturbance |
| Jun 11, 00:00 | 17.8N 113.4E | 15 kt | 1002 mb | Disturbance |
| Jun 11, 06:00 | 17.7N 112.7E | 15 kt | 1002 mb | Disturbance |
| Jun 11, 12:00 | 17.6N 112.0E | 20 kt | 999 mb | Disturbance |
| Jun 11, 18:00 | 17.7N 111.3E | 20 kt | 999 mb | Disturbance |
| Jun 12, 00:00 | 18.2N 110.2E | 25 kt | 998 mb | Tropical depression |
| Jun 12, 06:00 | 19.0N 108.8E | 25 kt | 998 mb | Tropical depression |
| Jun 12, 12:00 | 19.8N 107.5E | 35 kt | 996 mb | Tropical storm |
| Jun 12, 18:00 | 20.0N 106.4E | 30 kt | 1001 mb | Tropical depression |
| Jun 13, 00:00 | 20.0N 105.8E | 20 kt | 1004 mb | Disturbance |
| Jun 13, 06:00 | 19.9N 104.7E | 15 kt | 1004 mb | Disturbance |
| Jun 13, 12:00 | 20.7N 101.9E | 998 mb | Tropical storm |
Other Western Pacific storms of 2021
- Tropical Storm DujuanWestern Pacific · 2021
- Super Typhoon SurigaeWestern Pacific · 2021
- Unnamed tropical stormWestern Pacific · 2021
- Tropical Storm Choi-WanWestern Pacific · 2021
- Typhoon ChampiWestern Pacific · 2021
- Unnamed tropical depressionWestern Pacific · 2021
- Unnamed tropical depressionWestern Pacific · 2021
- Typhoon In-FaWestern Pacific · 2021
- Typhoon CempakaWestern Pacific · 2021
- Tropical Storm NepartakWestern Pacific · 2021
- Unnamed tropical stormWestern Pacific · 2021
- Tropical Storm LupitWestern Pacific · 2021
- Tropical Storm MirinaeWestern Pacific · 2021
- Tropical Storm NidaWestern Pacific · 2021
- Unnamed tropical stormWestern Pacific · 2021
- Typhoon ConsonWestern Pacific · 2021
- Super Typhoon ChanthuWestern Pacific · 2021
- Tropical Storm DianmuWestern Pacific · 2021
- Super Typhoon MindulleWestern Pacific · 2021
- Tropical Storm LionrockWestern Pacific · 2021
- Tropical Storm KompasuWestern Pacific · 2021
- Tropical Storm NamtheunWestern Pacific · 2021
- Typhoon MalouWestern Pacific · 2021
- Unnamed tropical stormWestern Pacific · 2021
- Super Typhoon NyatohWestern Pacific · 2021
- Super Typhoon RaiWestern Pacific · 2021
- Unnamed tropical depressionWestern Pacific · 2021
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.