Hong Kong Braces for Weekend Storms as Monsoon System Approaches
Thestandard · 1 SOURCESabout 2 hours ago2 MIN

Summary
The Hong Kong Observatory warned on Thursday that a broad low pressure system in the South China Sea is set to interact with an ongoing northeast monsoon, bringing deteriorating weather conditions to Hong Kong over the weekend. The system is expected to generate squally showers, thunderstorms and rough seas, with officials monitoring local wind speeds to assess whether to issue a Strong Monsoon Signal. A cyclonic circulation is forming as the monsoon moves south and encounters southwest winds in the central South China Sea, potentially consolidating into either a monsoonal depression or tropical cyclone. While European and American computer models suggest the system will track toward Hainan Island, a South Korean model projects a closer path to Guangdong with stronger development that could bring rainbands to the region early next week.
Key Points
- Cooler mornings will persist through Friday before conditions deteriorate over the weekend
- A cyclonic circulation is forming from the interaction of the monsoon and southwest winds in the central South China Sea
- European and American models project the system will track toward Hainan Island, staying away from Hong Kong's coast
- The South Korean model predicts a path closer to Guangdong with potential rainbands affecting the region early next week
- The weather pattern resembles Typhoon Lekima in October 2007, which passed about 650km southwest of Hong Kong
Why It Matters
The convergence of the low pressure system and northeast monsoon creates uncertainty about wind signal warnings, echoing a 2007 controversy when the Observatory issued only a Strong Monsoon Signal despite gale-force winds in Cheung Chau. The public should monitor forecasts closely and take precautions during outdoor or water activities as conditions develop .
The convergence of the low pressure system and northeast monsoon creates uncertainty about wind signal warnings, echoing a 2007 controversy when the Observatory issued only a Strong Monsoon Signal despite gale-force winds in Cheung Chau. The public should monitor forecasts closely and take precautions during outdoor or water activities as conditions develop .