Yellow Rainstorm Warning Reissued After Evening Cancellation as Wet Weather Persists
On.cc · 6 SOURCESabout 1 hour ago2 MIN
Summary
The Hong Kong Observatory has reissued the Yellow Rainstorm Warning Signal after previously cancelling it at 8:40pm on the evening of the 26th. The warning was activated at midnight on the 27th, indicating that heavy rainfall exceeding 30 millimetres per hour is affecting widespread areas across the territory . The Observatory warns that the rain may persist and could cause water accumulation in low-lying areas with inadequate drainage systems .
Key Points
- The Yellow Rainstorm Warning was first issued at 6:45pm on the evening of the 26th and subsequently cancelled at 8:40pm the same evening
- A new Yellow Rainstorm Warning was issued at midnight (00:00) on the 27th following the cancellation
- The warning indicates heavy rainfall exceeding 30 millimetres per hour is affecting or expected to affect widespread areas across Hong Kong
- Low-lying areas and districts with poor drainage systems face heightened risks of surface flooding
- Tai O recorded wind gusts of approximately 80 kilometres per hour at around 6:35pm on the 26th
- The Observatory issued a special weather notice at 4:30pm on the 26th warning of active southern airstream bringing heavy rain and thunderstorms
Why It Matters
Hong Kong's dense urban environment combined with its hilly terrain creates significant surface runoff during intense rainfall events, particularly in areas such as Sha Tin, Tai Po, and the northern New Territories which are historically prone to flooding. The Yellow Rainstorm Warning serves as a critical early alert for commuters and residents to adjust their travel plans and take necessary precautions, especially during the morning rush hour when heavy rain could severely impact transportation networks .
Hong Kong's dense urban environment combined with its hilly terrain creates significant surface runoff during intense rainfall events, particularly in areas such as Sha Tin, Tai Po, and the northern New Territories which are historically prone to flooding. The Yellow Rainstorm Warning serves as a critical early alert for commuters and residents to adjust their travel plans and take necessary precautions, especially during the morning rush hour when heavy rain could severely impact transportation networks .