Signal Number Signal Name Symbol Meaning
1 Standby
(戒備)
No. 01 Standby Signal.png Precaution Signal. A tropical cyclone is centred within 800 km of Macao and may affected Macao.
3 Strong Wind
(強風)
No. 03 Strong Wind Signal.png Under the influence of a tropical cyclone, winds with sustained speed of 41 to 62 km/h is expected or blowing and the gust may exceed 110 km/h in Macao.
8NW Gale or Storm
(烈風或暴風)
No. 8 Northwest Gale or Storm Signal.png The tropical cyclone continues to approach Macao. Winds with sustained speed of 63 to 117 km/h is expected or blowing and the gust may exceed 180 km/h in Macao. Signal No.8 is further divided into Signal No.8NE, Signal No.8SE, Signal No.8SW and Signal No.8NW, which indicates the possible wind direction in the next few hours.
8SW No. 8 Southwest Gale or Storm Signal.png
8NE No. 8 Northeast Gale or Storm Signal.png
8SE No. 8 Southeast Gale or Storm Signal.png
9 Increasing Gale or Storm
(烈風或暴風風力增強)
No. 09 Increasing Gale or Storm Signal.png The tropical cyclone is further approaching Macao. In Macao, winds with sustained speed of 63 to 117 km/h is blowing and intensifying/expected to intensify significantly.
10 Hurricane
(颶風)
No. 10 Hurricane Signal.png The centre of the tropical cyclone shall strike at the immediate approaches of Macao. Winds with sustained speed exceeds 118 km/h is expected or blowing in Macao, accompany with gust of great intensity.

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