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Report on Super Typhoon Saola (2309)
Report on Super Typhoon Saola (2309)
Figures
Figure 1a: Provisional track of Saola (2309): 23 August - 3 September 2023
Figure 1b: Provisional track of Saola (2309) near Hong Kong
Figure 2: Time series of the estimated maximum sustained wind speed near the centre of Saola (2309): 23 August - 3 September 2023 (initial assessment)
Figure 3: Rainfall distribution on 30 August – 2 September 2023
Figure 4a: Infra-red satellite imagery at around 2 a.m. on 30 August 2023
Figure 4b: Infra-red satellite imagery at around 5 a.m. on 1 September 2023
Figure 5: Government Flying Service (GFS) dispatched a fixed-wing aircraft to conduct surveillance near Saola on the morning of 1 September
Figure 6a: Image of radar echoes captured at 8:24 a.m. on 1 September 2023
Figure 6b: Image of radar echoes captured at 7:48 p.m. on 1 September 2023
Figure 6c: Image of radar echoes captured at 9 p.m. on 1 September 2023
Figure 7a: 10-minute mean wind direction and speed recorded at various stations in Hong Kong at 10:20 p.m. on 1 September 2023
Figure 7b: 10-minute mean wind direction and speed recorded at various stations in Hong Kong at 12:20 a.m. on 2 September 2023
Figure 8: Traces of 10-minute mean wind speed recorded at Cheung Chau, Waglan Island and North Point on 1 – 2 September 2023
Figure 9: Traces of mean sea-level pressure recorded at the Hong Kong Observatory, Peng Chau and Waglan Island on 1 – 2 September 2023
Figure 10: The passage of Saola resulted in fallen trees in many parts of Hong Kong
Figure 11: Shing Mun River in Sha Tin was flooded due to storm surge induced by Saola
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 Saola were in force
Table 2: Maximum 60-minute mean wind speeds and maximum gusts recorded during the passage of Saola and the tropical cyclones necessitating the issuance of No. 10 signals recently (Mangkhut and Hato)
Table 3: 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 Saola were in force
Table 4: Daily rainfall amounts recorded at the Hong Kong Observatory Headquarters and other stations during the passage of Saola
Table 5: Times and heights of the maximum sea level and the maximum storm surge recorded at tide stations in Hong Kong during the passage of Saola
