Hong Kong’s weather forecaster may issue a No 1 typhoon standby signal between Monday evening and Tuesday morning, warning that the city should brace for heavy rainstorms. The Observatory said on Monday at 12.30pm that an area of low pressure over the northern part of the South China Sea would edge closer to the coast of Guangdong, with the associated cloud bands expected to take time to consolidate. “Whether it will develop into a tropical depression will only become more certain when it is...