Intensity (ten-minute mean)
山竹 Mangkhut
- Peak wind
- 204km/h
- Lowest pressure
- 905hPa
- Closest approach
- about 100km south-west
- Warnings and signals
- Hurricane Signal No. 10
- Mean of 28 station maximum hourly mean winds
- 94.4km/h
- Waglan Island
- 161km/h
- Cheung Chau
- 157km/h
The 28-station value is the arithmetic mean of the issuing agency’s maximum hourly mean winds in Table 3.5.1. Waglan Island and Cheung Chau use maximum 60-minute mean winds in Table 3.5.2. These reference statistics use station measurements, not replay-model estimates. Their averaging windows differ and are not directly comparable with the replay’s ten-minute model estimates.
Crossed Luzon at peak intensity and bore down on the Pearl River Estuary, passing about 100 km south of Hong Kong.
Satellite image 11 Sept 2018 · VIIRS
Track timeline
Track timeline- 194 km/h915 hPa
- 204 km/h905 hPa
- 204 km/h905 hPa
- 167 km/h940 hPa
- 139 km/h960 hPa
- —1002 hPa
Full track
Full trackA best track is after-the-fact reanalysis, not what was forecast at the time. All times UTC+8.
| Time | Position | Pressure | Wind |
|---|---|---|---|
| 11 Sept 14:00 | 13.9°N 139.8°E | 915 hPa | 194 km/h |
| 11 Sept 20:00 | 13.7°N 138.7°E | 905 hPa | 204 km/h |
| 12 Sept 02:00 | 14.0°N 137.4°E | 905 hPa | 204 km/h |
| 12 Sept 08:00 | 13.9°N 136.2°E | 905 hPa | 204 km/h |
| 12 Sept 14:00 | 14.0°N 135.2°E | 905 hPa | 204 km/h |
| 12 Sept 20:00 | 14.3°N 134.0°E | 905 hPa | 204 km/h |
| 13 Sept 02:00 | 14.4°N 132.5°E | 905 hPa | 204 km/h |
| 13 Sept 08:00 | 14.5°N 131.4°E | 905 hPa | 204 km/h |
| 13 Sept 14:00 | 14.8°N 130.0°E | 905 hPa | 204 km/h |
| 13 Sept 20:00 | 14.9°N 128.9°E | 905 hPa | 204 km/h |
| 14 Sept 02:00 | 15.2°N 127.9°E | 905 hPa | 204 km/h |
| 14 Sept 08:00 | 16.0°N 126.9°E | 905 hPa | 204 km/h |
| 14 Sept 14:00 | 16.7°N 125.7°E | 905 hPa | 204 km/h |
| 14 Sept 20:00 | 17.4°N 124.1°E | 905 hPa | 204 km/h |
| 15 Sept 02:00 | 18.0°N 122.3°E | 905 hPa | 204 km/h |
| 15 Sept 08:00 | 18.0°N 120.5°E | 940 hPa | 167 km/h |
| 15 Sept 14:00 | 18.5°N 119.7°E | 940 hPa | 167 km/h |
| 15 Sept 20:00 | 19.2°N 118.3°E | 950 hPa | 157 km/h |
| 16 Sept 02:00 | 19.8°N 117.0°E | 955 hPa | 148 km/h |
| 16 Sept 08:00 | 20.6°N 115.3°E | 960 hPa | 139 km/h |
| 16 Sept 14:00 | 21.7°N 113.5°E | 960 hPa | 139 km/h |
| 16 Sept 20:00 | 22.2°N 111.6°E | 970 hPa | 120 km/h |
| 17 Sept 02:00 | 22.7°N 109.7°E | 980 hPa | 102 km/h |
| 17 Sept 08:00 | 23.2°N 108.3°E | 992 hPa | 83 km/h |
| 17 Sept 14:00 | 24.0°N 107.0°E | 998 hPa | — |
| 17 Sept 20:00 | 24.0°N 105.6°E | 1002 hPa | — |
Further reading
- What an ensemble forecast is, and what it is not
A spray of tracks is a statement about uncertainty, not a menu of outcomes.
- Hong Kong's typhoon signals, explained
What each of the five levels means in wind speed, and why the No. 8 comes in four directions.
- Why a storm to the south brings easterly winds
Cyclones spin anticlockwise north of the equator, so the wind where you stand depends on which side of the storm you are on.