Hong Kong Observatory issues amber rainstorm warning

The Hong Kong Observatory issued an amber rainstorm warning on Sunday night and said that unsettled weather was expected to persist over the next few days. The warning was issued at 9.40pm, signalling that more than 30mm of rain had fallen or was expected to fall across the city within an hour. The alert also indicates that downpours are likely to continue. The Observatory said that under the influence of an active southwest monsoon and a trough of low pressure, unsettled weather were expected..