| Signal |
Symbol Display |
Meaning of the Signal |
| Standby |
1 |
 |
A tropical cyclone is centred within about 800 kilometres (km) of Hong Kong and may later affect Hong Kong. |
| Strong Wind |
3 |
 |
Strong wind is expected or blowing in the Victoria harbour, with a sustained speed of 41-62 kilometres per hour (km/h), and gusts which may exceed 110 km/h. |
NW' LY Gale or Storm |
8 NW |
 |
Gale or storm force wind is expected or blowing in the Victoria harbour, with a sustained wind speed of 63-117 km/h from the quarter indicated and gusts which may exceed 180 km/h. |
SW' LY Gale or Storm |
8 SW |
 |
NE' LY Gale or Storm |
8 NE |
 |
SE' LY Gale or Storm |
8 SE |
 |
Increasing Gale or Storm |
9 |
 |
Gale or storm force wind is increasing or expected to increase significantly in strength. |
| Hurricane |
10 |
 |
Hurricane force wind is expected or blowing, with sustained speed reaching upwards from 118 km/h and with gusts that may exceed 220 km/h. |