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Tropical Storm Lionrock (2117)
Report on Tropical Storm Lionrock (2117)
Figures
Figure 1a: Provisional track of Lionrock (2117): 7 - 10 October 2021
Figure 1b: Provisional track of Lionrock near Hainan Island
Figure 2: Rainfall distribution on 7 – 10 October 2021
Figure 3a: 10-minute mean wind direction and speed recorded at various stations in Hong Kong at 3:40 p.m. on 9 October 2021
Figure 3b: 10-minute mean wind direction and speed recorded at various stations in Hong Kong at 8:20 p.m. on 9 October 2021
Figure 4: Traces of 10-minute wind speed recorded at Waglan Island, Cheung Chau and Tai Mei Tuk on 8 - 10 October 2021
Figure 5: Hourly rainfall recorded at the Observatory during 7 – 10 October 2021
Figure 6a: Visible satellite imagery around 11 a.m. on 8 October 2021
Figure 6b: Visible satellite imagery around 2 p.m. on 9 October 2021
Figure 7a: Radar echoes captured at noon on 8 October 2021
Figure 7b: Radar echoes captured at 3:24 p.m. on 9 October 2021
Figure 8a: Scaffolding collapsed in Happy Valley on 8 October 2021
Figure 8b: Serious flooding at Tai Hang Road and Victoria Park during the rainstorm on 8 October 2021
Tables
Table 1: Maximum gust peak speeds and maximum hourly mean winds with associated wind directions recorded at various stations when the tropical cyclone warning signals for Lionrock were in force
Table 2: Periods during which sustained strong and gale force winds were attained at the eight reference anemometers in the tropical cyclone warning system when tropical cyclone warning signals for Lionrock were in force
Table 3: Daily rainfall amounts recorded at the Hong Kong Observatory Headquarters and other stations during the passage of Lionrock
Table 4: Times and heights of the maximum sea level and the maximum storm surge recorded at tide stations in Hong Kong during the passage of Lionrock
