Launching of “Historical Records of Tropical Cyclone Warning Signals in Hong Kong during 1917-1941” Webpage

2 November 2021

The Observatory today (2 November 2021) launched “Historical Records of Tropical Cyclone Warning Signals in Hong Kong during 1917-1941” webpage to display these precious pre-World War II historical records.

Hong Kong's local numbered tropical cyclone warning signal system was first implemented in 1917. While the tropical cyclone warning signal records since World War II (1946 and after) have been consolidated, digitized, and included in the tropical cyclone warning signal database of the Observatory, the signal records before World War II (1917 – 1941) were scattered in different historical reports and newspapers. With the assistance of a group of enthusiastic retired colleagues and volunteers, the Observatory used relevant historical information to recover the historical tropical cyclone warning signal records in Hong Kong before World War II.

For details about the recovery of the records, please refer to the Observatory’s Blog: “Recovery of pre-World War II Tropical Cyclone Warning Signal Records in Hong Kong”.