Key facts
- Hong Kong Observatory downgraded its red rainstorm warning to an amber alert at 8:55 PM on Saturday.
- The red rainstorm warning was issued at 7:55 PM.
- A red rainstorm warning signifies expected heavy rainfall exceeding 50mm per hour.
- The first amber alert was lifted at 11:30 AM.
- A second amber alert was issued at 6:45 PM.
The Hong Kong Observatory downgraded a red rainstorm warning on Saturday evening, lowering it to an amber alert after an hour. The red warning, which signifies expected heavy rainfall exceeding 50mm per hour, was issued at 7:55 PM and replaced with the amber alert at 8:55 PM. The amber warning had been issued twice earlier on Saturday. The first amber alert, the lowest in the three-tier rainstorm warning system, was lifted at 11:30 AM, 90 minutes after it was issued. A second amber alert was sent out at 6:45 PM. The red warning indicated that heavy rain had fallen or was expected to fall generally.