Unnamed tropical storm (1999)
Unnamed tropical storm peaked at 35 kt in the South Pacific between December 13, 1998 and December 18, 1998.
Track and intensity
The whole track of Unnamed tropical storm, colored by strength, with the other storms of the 1999 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 13, 1998 to December 18, 1998
- Peak strength
- Tropical Storm, 35 kt (40 mph)
- Landfall
- No; closest approach 349 km (217 mi)
- Accumulated cyclone energy
- 0.6
- Identifier
- SH071999
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 13, 12:00 | 16.6S 156.4E | 25 kt | Tropical storm | |
| Dec 13, 18:00 | 17.4S 155.9E | 25 kt | Tropical storm | |
| Dec 14, 00:00 | 18.0S 155.7E | 25 kt | Tropical storm | |
| Dec 14, 06:00 | 18.8S 156.4E | 25 kt | Tropical storm | |
| Dec 14, 12:00 | 19.4S 157.8E | 25 kt | Tropical storm | |
| Dec 14, 18:00 | 19.8S 159.0E | 25 kt | Tropical storm | |
| Dec 15, 00:00 | 20.6S 159.8E | 25 kt | Tropical storm | |
| Dec 15, 06:00 | 21.6S 160.5E | 30 kt | Tropical storm | |
| Dec 15, 12:00 | 22.6S 161.3E | 30 kt | Tropical storm | |
| Dec 15, 18:00 | 23.4S 162.0E | 30 kt | Tropical storm | |
| Dec 16, 00:00 | 24.5S 162.9E | 30 kt | Tropical storm | |
| Dec 16, 06:00 | 25.5S 163.8E | 30 kt | Tropical storm | |
| Dec 16, 12:00 | 26.7S 164.6E | 30 kt | Tropical storm | |
| Dec 16, 18:00 | 28.2S 164.9E | 30 kt | Tropical storm | |
| Dec 17, 00:00 | 30.0S 164.8E | 30 kt | Tropical storm | |
| Dec 17, 06:00 | 32.0S 165.1E | 35 kt | Tropical storm | |
| Dec 17, 12:00 | 33.7S 166.1E | 35 kt | Tropical storm | |
| Dec 17, 18:00 | 35.3S 167.3E | 35 kt | Tropical storm | |
| Dec 18, 00:00 | 37.4S 167.9E | 35 kt | Tropical storm | |
| Dec 18, 06:00 | 39.5S 168.4E | 35 kt | Tropical storm |
Other South Pacific storms of 1999
- Cyclone ThelmaSouth Pacific · 1999
- Cyclone CoraSouth Pacific · 1999
- Unnamed tropical stormSouth Pacific · 1999
- Cyclone DaniSouth Pacific · 1999
- Tropical Storm OlindaSouth Pacific · 1999
- Tropical Storm PeteSouth Pacific · 1999
- Unnamed tropical stormSouth Pacific · 1999
- Tropical Storm EllaSouth Pacific · 1999
- Tropical Storm RonaSouth Pacific · 1999
- Cyclone FrankSouth Pacific · 1999
- Tropical Storm GitaSouth Pacific · 1999
- Tropical Storm HaliSouth Pacific · 1999
- Unnamed tropical stormSouth Pacific · 1999
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.