Macau's observatory hoisted the tropical cyclone standby Signal No. 1 at 6:30 a.m. today.
According to a statement by the Macau Meteorological and Geophysical Bureau (SMG), "Signal No. 1 will remain in effect during the day." The bureau said that at 2 p.m. a tropical depression was located about 710 kilometres south-southwest of Macau, moving toward Hainan province.
No.1 is an advisory signal, indicating that a tropical cyclone is centred within 800 kilometres of Macau which "may affect" the city.
The weather station said the probability of the hoisting of Signal No. 3 was "relatively low". Signal No. 3 means that Macau is "under the influence of a tropical cyclone, winds with sustained speed of 41 to 62 km/h are expected or blowing and gusts may exceed 110 km/h in Macau," according to the observatory.
At 4:45 p.m. the mercury in Macau stood at 30 degrees Celsius. Relative humidity amounted to 80 percent, according to the bureau.