HKO: T1 Signal Possible as Tropical Depression Nears Hong Kong

Tropical Weather Alert: Hong Kong Prepares for Potential Cyclone Impact

As the tropical cyclone season continues to unfold, Hong Kong residents are keeping a close eye on an approaching tropical depression that could significantly affect local weather conditions. The Hong Kong Observatory (HKO) is closely monitoring a developing system that may prompt the issuance of a No. 1 standby signal in the coming days.

Currently situated near Luzon, the tropical depression is on a trajectory that could bring notable weather changes to the region. Meteorologists predict the system will track across Luzon on September 17 and 18, gradually moving to within 800 kilometers of Hong Kong. The HKO is considering hoisting the No. 1 standby signal as early as late Wednesday, September 17, or early Thursday, September 18, signaling potential weather disruptions.

A crowd of people with umbrellas gathered along a harbor promenade under dark, stormy clouds, with ships in turbulent waters amidst intermittent showers and thunderstorms.

The cyclone’s path remains somewhat unpredictable, with the northeast monsoon playing a crucial role in its development. Unlike more intense tropical systems, this depression currently has a relatively small circulation, which means significant weather impacts may not be immediately apparent. However, the HKO is meticulously tracking several key factors, including the system’s strength, the proximity of its strong wind zone to Hong Kong, and local wind conditions.

A weather map depicting the projected path of Tropical Depression Hong Kong Observatory No. 1, with storm intensity zones highlighted in yellow and green, and black dashed lines indicating the sea swells and squally thunderstorms affecting the Guangdong coast on September 17, 2025.

By Friday, September 19, residents can expect the first signs of the tropical depression’s influence. Outer rain bands are likely to bring unsettled weather, characterized by stronger winds, intermittent showers, and potentially squally thunderstorms. Coastal areas should be particularly cautious, as sea swells are anticipated to create additional hazards

The observatory’s careful approach highlights the complexity of predicting tropical weather systems. While the depression is moving toward the Guangdong coast and gradually gaining strength, its exact trajectory remains uncertain. This uncertainty underscores the importance of staying informed and prepared.

For Hong Kong residents, this means keeping a close watch on official weather updates and being ready to respond to changing conditions. The HKO recommends staying tuned to the latest meteorological announcements, which will provide real-time information about potential warning signals and weather developments.

The approaching tropical depression serves as a timely reminder of the dynamic nature of weather in the region. Tropical cyclone season brings with it the potential for rapid and significant weather changes, making vigilance and preparedness crucial for residents and authorities alike.

As the situation continues to develop, the HKO will play a critical role in providing timely and accurate information. Residents are advised to have emergency plans in place, stay informed through official channels, and take necessary precautions as the tropical depression approaches.

While the current forecast suggests the system may not cause immediate severe disruption, the potential for changing conditions remains. The next few days will be crucial in determining the full impact of this tropical depression on Hong Kong and the surrounding areas.

Stay alert, stay informed, and stay prepared – these are the key messages from the Hong Kong Observatory as the region watches this developing weather system closely.

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