The Hong Kong Observatory issued a black rainstorm warning at 11:45 pm on Monday, marking the second time this year that the city has raised its highest level of the three-tier rainstorm alert system. The warning remains in effect as of this report.

On the morning of July 29, the Observatory issued the first black rainstorm warning of the year, which lasted for 115 minutes.

A black rainstorm warning indicates that widespread areas of Hong Kong have recorded, or are expected to record, rainfall exceeding 70 millimeters per hour. The heavy downpour is likely to continue.

On Monday, the first red rainstorm alert of the day was in effect from 12:20 pm, lasting for one hour.