Ruby

2021-22 season · AU202122_07U

Category 4

History

Tropical Cyclone Ruby developed from an area of convection in the Solomon Sea, first tracked by the Joint Typhoon Warning Center on 8 December 2021. The system was designated Tropical Low 07U by the Australian Bureau of Meteorology on 10 December, and was upgraded to a named tropical cyclone on 12 December as it moved southeast across the Coral Sea. Ruby reached its peak intensity on 13 December at 00:00 UTC, with maximum 10-minute sustained winds of 60 knots (110 km/h), classifying it as a Category 2 system on the Australian scale. Responsibility for tracking was subsequently handed to the Fiji Meteorological Service as Ruby crossed into the South Pacific basin.

The cyclone made landfall in Belep, New Caledonia, at 17:00 UTC on 13 December, before passing over Poum an hour later. It was the first cyclone to strike New Caledonia's northern region since Cyclone Frank in 1990. Wind gusts reached 185 km/h at Poingam, and rainfall over a 12-hour period on 14 December peaked at 303.1 mm near Yaté. Approximately 14,864 households lost power, trees were downed, and some roads became impassable. Prior to landfall, ferry and air services were suspended and emergency shelters were opened. In the Solomon Islands, heavy rainfall contaminated water reservoirs, causing health issues for some residents. No fatalities were recorded from the storm.

Sources: Bureau of Meteorology report Wikipedia

View full track data (25 observations)
Date/Time (UTC)CategoryPositionPressureWind
2021-12-09 00:00:00 1 -9.0, 155.0 1007 hPa 10 km/h
2021-12-09 06:00:00 1 -9.5, 155.1 1007 hPa 10 km/h
2021-12-09 12:00:00 1 -9.6, 155.2 1006 hPa 10 km/h
2021-12-09 18:00:00 1 -9.7, 155.3 1006 hPa 10 km/h
2021-12-10 00:00:00 1 -9.8, 155.5 1006 hPa 10 km/h
2021-12-10 06:00:00 1 -10.1, 155.6 1003 hPa 10 km/h
2021-12-10 12:00:00 1 -10.3, 155.6 1002 hPa 13 km/h
2021-12-10 18:00:00 1 -10.4, 155.7 1000 hPa 13 km/h
2021-12-11 00:00:00 1 -10.5, 156.1 998 hPa 18 km/h
2021-12-11 06:00:00 1 -10.8, 156.5 999 hPa 15 km/h
2021-12-11 12:00:00 1 -11.6, 156.6 1001 hPa 15 km/h
2021-12-11 18:00:00 1 -12.6, 156.9 1000 hPa 15 km/h
2021-12-12 00:00:00 1 -13.6, 157.0 994 hPa 21 km/h
2021-12-12 06:00:00 1 -14.7, 157.7 990 hPa 23 km/h
2021-12-12 12:00:00 1 -15.5, 158.0 988 hPa 26 km/h
2021-12-12 18:00:00 1 -16.4, 158.9 983 hPa 28 km/h
2021-12-13 00:00:00 1 -17.4, 159.7 980 hPa 31 km/h
2021-12-13 06:00:00 1 -18.3, 161.2 977 hPa 31 km/h
2021-12-13 12:00:00 1 -19.2, 162.2 981 hPa 28 km/h
2021-12-13 18:00:00 1 -20.0, 163.8 980 hPa 28 km/h
2021-12-14 00:00:00 3 -21.2, 165.4 982 hPa 28 km/h
2021-12-14 06:00:00 4 -22.2, 167.3 981 hPa 28 km/h
2021-12-14 12:00:00 1 -23.3, 169.1 987 hPa 26 km/h
2021-12-14 18:00:00 1 -24.3, 170.6 987 hPa 23 km/h
2021-12-15 00:00:00 1 -25.2, 172.5 987 hPa 23 km/h