Cyclone Jasper (2024)
Cyclone Jasper reached Category 4 in the South Pacific between December 2, 2023 and December 17, 2023, with a lowest pressure of 937 mb, and made landfall.
Track and intensity
The whole track of Cyclone Jasper, colored by strength, with the other storms of the 2024 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.
The storm
- Basin
- South Pacific
- Dates
- December 2, 2023 to December 17, 2023
- Peak strength
- Category 4, 120 kt (138 mph)
- Lowest pressure
- 937 mb (27.67 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 17.6
- Tropical-storm-force wind reached
- 240 nmi (444 km, 276 mi) from the center at its widest
- Hurricane-force wind reached
- 65 nmi (120 km, 75 mi) from the center at its widest
- Eyewall radius at its peak
- 15 nmi (28 km, 17 mi)
- Overall size
- 275 nmi (509 km, 316 mi) to the outermost closed isobar
- Fastest the center moved
- 15 kt (17 mph)
- Identifier
- SH032024
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Dec 2, 12:00 | 8.4S 164.8E | 15 kt | 1006 mb | Tropical storm |
| Dec 2, 18:00 | 8.4S 164.0E | 20 kt | 1006 mb | Tropical storm |
| Dec 3, 00:00 | 8.5S 162.7E | 20 kt | 1005 mb | Tropical storm |
| Dec 3, 06:00 | 8.2S 162.0E | 20 kt | 1005 mb | Tropical storm |
| Dec 3, 12:00 | 7.8S 160.9E | 15 kt | 1010 mb | Disturbance |
| Dec 3, 18:00 | 7.4S 159.8E | 15 kt | 1010 mb | Disturbance |
| Dec 4, 00:00 | 7.7S 158.7E | 20 kt | 998 mb | Disturbance |
| Dec 4, 06:00 | 8.1S 158.4E | 20 kt | 997 mb | Disturbance |
| Dec 4, 12:00 | 8.5S 158.0E | 25 kt | 995 mb | Tropical depression |
| Dec 4, 18:00 | 8.8S 157.6E | 30 kt | 994 mb | Tropical depression |
| Dec 5, 00:00 | 9.1S 157.4E | 40 kt | 997 mb | Tropical storm |
| Dec 5, 06:00 | 9.4S 157.2E | 40 kt | 996 mb | Tropical storm |
| Dec 5, 12:00 | 9.5S 157.3E | 45 kt | 995 mb | Tropical storm |
| Dec 5, 18:00 | 10.1S 157.3E | 50 kt | 991 mb | Tropical storm |
| Dec 6, 00:00 | 10.6S 157.3E | 60 kt | 986 mb | Tropical storm |
| Dec 6, 06:00 | 11.1S 157.2E | 70 kt | 978 mb | Typhoon |
| Dec 6, 12:00 | 11.5S 157.1E | 75 kt | 977 mb | Typhoon |
| Dec 6, 18:00 | 11.7S 157.0E | 80 kt | 974 mb | Typhoon |
| Dec 7, 00:00 | 12.2S 156.9E | 85 kt | 967 mb | Typhoon |
| Dec 7, 06:00 | 12.6S 156.8E | 95 kt | 959 mb | Typhoon |
| Dec 7, 12:00 | 13.1S 156.8E | 105 kt | 950 mb | Typhoon |
| Dec 7, 18:00 | 13.5S 156.8E | 115 kt | 940 mb | Typhoon |
| Dec 8, 00:00 | 14.2S 156.6E | 120 kt | 937 mb | Typhoon |
| Dec 8, 06:00 | 14.6S 156.5E | 115 kt | 943 mb | Typhoon |
| Dec 8, 12:00 | 15.1S 156.6E | 105 kt | 952 mb | Typhoon |
| Dec 8, 18:00 | 15.3S 156.2E | 95 kt | 959 mb | Typhoon |
| Dec 9, 00:00 | 15.4S 155.8E | 90 kt | 964 mb | Typhoon |
| Dec 9, 06:00 | 15.6S 155.5E | 75 kt | 973 mb | Typhoon |
| Dec 9, 12:00 | 15.9S 155.0E | 70 kt | 977 mb | Typhoon |
| Dec 9, 18:00 | 16.0S 154.8E | 60 kt | 983 mb | Tropical storm |
| Dec 10, 00:00 | 16.3S 154.3E | 60 kt | 982 mb | Tropical storm |
| Dec 10, 06:00 | 16.7S 153.6E | 60 kt | 983 mb | Tropical storm |
| Dec 10, 12:00 | 17.2S 152.7E | 55 kt | 986 mb | Tropical storm |
| Dec 10, 18:00 | 17.4S 151.6E | 50 kt | 990 mb | Tropical storm |
| Dec 11, 00:00 | 17.8S 150.3E | 40 kt | 994 mb | Tropical storm |
| Dec 11, 06:00 | 17.4S 149.7E | 40 kt | 994 mb | Tropical storm |
| Dec 11, 12:00 | 17.0S 149.0E | 40 kt | 994 mb | Tropical storm |
| Dec 11, 18:00 | 16.5S 148.2E | 45 kt | 992 mb | Tropical storm |
| Dec 12, 00:00 | 16.2S 147.9E | 45 kt | 993 mb | Tropical storm |
| Dec 12, 06:00 | 15.9S 147.6E | 45 kt | 993 mb | Tropical storm |
| Dec 12, 12:00 | 15.6S 147.4E | 50 kt | 992 mb | Tropical storm |
| Dec 12, 18:00 | 15.4S 147.0E | 50 kt | 990 mb | Tropical storm |
| Dec 13, 00:00 | 15.7S 146.4E | 50 kt | 990 mb | Tropical storm |
| Dec 13, 06:00 | 15.8S 145.7E | 50 kt | 988 mb | Tropical storm |
| Dec 13, 12:00 | 15.9S 145.3E | 45 kt | 995 mb | Tropical storm |
| Dec 13, 18:00 | 16.0S 144.4E | 35 kt | 1000 mb | Tropical storm |
| Dec 14, 00:00 | 16.0S 144.0E | 25 kt | 997 mb | Tropical depression |
| Dec 14, 06:00 | 16.0S 143.7E | 25 kt | 996 mb | Tropical depression |
| Dec 14, 12:00 | 15.9S 143.4E | 25 kt | 996 mb | Tropical depression |
| Dec 14, 18:00 | 15.9S 143.2E | 25 kt | 995 mb | Tropical depression |
| Dec 15, 00:00 | 15.9S 143.0E | 20 kt | 995 mb | Disturbance |
| Dec 15, 06:00 | 15.8S 142.5E | 20 kt | 995 mb | Disturbance |
| Dec 15, 12:00 | 15.7S 142.3E | 20 kt | 996 mb | Disturbance |
| Dec 15, 18:00 | 15.8S 142.0E | 20 kt | 996 mb | Disturbance |
| Dec 16, 00:00 | 15.8S 141.7E | 20 kt | 996 mb | Disturbance |
| Dec 16, 06:00 | 15.6S 141.6E | 20 kt | 996 mb | Disturbance |
| Dec 16, 12:00 | 15.4S 141.5E | 20 kt | 996 mb | Disturbance |
| Dec 16, 18:00 | 15.7S 141.4E | 20 kt | 1000 mb | Disturbance |
| Dec 17, 00:00 | 15.9S 142.3E | 20 kt | 1002 mb | Disturbance |
Other South Pacific storms of 2024
- Cyclone LolaSouth Pacific · 2024
- Cyclone MalSouth Pacific · 2024
- Tropical Storm KirrilySouth Pacific · 2024
- Unnamed tropical stormSouth Pacific · 2024
- Tropical Storm NatSouth Pacific · 2024
- Tropical Storm OsaiSouth Pacific · 2024
- Unnamed tropical stormSouth Pacific · 2024
- Tropical Storm PaulSouth Pacific · 2024
What this means
A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.
Sources
Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.