Unnamed tropical depression (1989)
Unnamed tropical depression peaked at 30 kt in the Western Pacific between August 23, 1989 and August 29, 1989, with a lowest pressure of 1002 mb.
Track and intensity
The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1989 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
- Western Pacific
- Dates
- August 23, 1989 to August 29, 1989
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 1002 mb (29.59 inHg)
- Landfall
- No; closest approach 1279 km (795 mi)
- Accumulated cyclone energy
- 0.0
- Identifier
- WP211989
Deaths and damage
No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Aug 23, 00:00 | 22.3N 146.4E | 20 kt | Tropical storm | |
| Aug 23, 06:00 | 22.3N 145.8E | 20 kt | Tropical storm | |
| Aug 23, 12:00 | 22.5N 145.3E | 20 kt | Tropical storm | |
| Aug 23, 18:00 | 22.9N 145.1E | 20 kt | Tropical storm | |
| Aug 24, 00:00 | 23.4N 145.0E | 20 kt | Tropical storm | |
| Aug 24, 06:00 | 25.0N 146.3E | 20 kt | 1006 mb | Tropical storm |
| Aug 24, 12:00 | 25.9N 148.3E | 25 kt | 1006 mb | Tropical storm |
| Aug 24, 18:00 | 26.7N 149.3E | 25 kt | 1006 mb | Tropical storm |
| Aug 25, 00:00 | 27.3N 150.2E | 25 kt | 1006 mb | Tropical storm |
| Aug 25, 06:00 | 28.5N 151.6E | 25 kt | 1006 mb | Tropical storm |
| Aug 25, 12:00 | 29.6N 153.3E | 30 kt | 1006 mb | Tropical storm |
| Aug 25, 18:00 | 30.1N 153.9E | 30 kt | 1006 mb | Tropical storm |
| Aug 26, 00:00 | 30.6N 154.4E | 30 kt | 1006 mb | Tropical storm |
| Aug 26, 06:00 | 31.4N 155.7E | 30 kt | 1006 mb | Tropical storm |
| Aug 26, 12:00 | 31.6N 157.1E | 30 kt | 1004 mb | Tropical storm |
| Aug 26, 18:00 | 31.4N 158.8E | 30 kt | 1002 mb | Tropical storm |
| Aug 27, 00:00 | 31.8N 160.4E | 30 kt | 1002 mb | Tropical storm |
| Aug 27, 06:00 | 32.0N 161.0E | 30 kt | 1002 mb | Tropical storm |
| Aug 27, 12:00 | 32.1N 161.4E | 30 kt | 1002 mb | Tropical storm |
| Aug 27, 18:00 | 32.2N 161.7E | 30 kt | 1004 mb | Tropical storm |
| Aug 28, 00:00 | 32.5N 161.7E | 30 kt | 1006 mb | Tropical storm |
| Aug 28, 06:00 | 32.7N 161.0E | 25 kt | 1010 mb | Tropical storm |
| Aug 28, 12:00 | 33.0N 159.8E | 25 kt | Tropical storm | |
| Aug 28, 18:00 | 33.4N 158.3E | 25 kt | Tropical storm | |
| Aug 29, 00:00 | 33.9N 156.8E | 25 kt | Tropical storm |
Other Western Pacific storms of 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Super Typhoon AndyWestern Pacific · 1989
- Typhoon BrendaWestern Pacific · 1989
- Typhoon CecilWestern Pacific · 1989
- Typhoon DotWestern Pacific · 1989
- Tropical Storm EllisWestern Pacific · 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Tropical Storm FayeWestern Pacific · 1989
- Super Typhoon GordonWestern Pacific · 1989
- Tropical Storm HopeWestern Pacific · 1989
- Tropical Storm IrvingWestern Pacific · 1989
- Typhoon JudyWestern Pacific · 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Tropical Storm Ken:LolaWestern Pacific · 1989
- Typhoon MacWestern Pacific · 1989
- Typhoon OwenWestern Pacific · 1989
- Typhoon NancyWestern Pacific · 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Tropical Storm PeggyWestern Pacific · 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Tropical Storm RogerWestern Pacific · 1989
- Typhoon SarahWestern Pacific · 1989
- Tropical Storm TipWestern Pacific · 1989
- Tropical Storm VeraWestern Pacific · 1989
- Typhoon WayneWestern Pacific · 1989
- Typhoon ColleenWestern Pacific · 1989
- Super Typhoon AngelaWestern Pacific · 1989
- Typhoon BrianWestern Pacific · 1989
- Typhoon DanWestern Pacific · 1989
- Super Typhoon ElsieWestern Pacific · 1989
- Typhoon ForrestWestern Pacific · 1989
- Super Typhoon GayWestern Pacific · 1989
- Typhoon HuntWestern Pacific · 1989
- Super Typhoon IrmaWestern Pacific · 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Unnamed tropical depressionWestern Pacific · 1989
- Typhoon JackWestern Pacific · 1989
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.