Unnamed tropical depression (1999)
Unnamed tropical depression peaked at 25 kt in the North Indian between December 8, 1999 and December 10, 1999, with a lowest pressure of 998 mb.
Track and intensity
The whole track of Unnamed tropical depression, 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
- North Indian
- Dates
- December 8, 1999 to December 10, 1999
- Peak strength
- Tropical Depression, 25 kt (29 mph), ten-minute wind
- Lowest pressure
- 998 mb (29.47 inHg)
- Landfall
- No; closest approach 398 km (247 mi)
- Accumulated cyclone energy
- 0.0
- Identifier
- 1999342N10089
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 8, 06:00 | 9.5N 88.5E | 15 kt | 1000 mb | Disturbance |
| Dec 8, 12:00 | 10.6N 87.5E | Tropical storm | ||
| Dec 8, 18:00 | 10.5N 87.0E | 25 kt | 998 mb | Tropical storm |
| Dec 9, 00:00 | 10.5N 86.3E | Tropical storm | ||
| Dec 9, 06:00 | 10.5N 85.0E | 25 kt | 998 mb | Tropical storm |
| Dec 9, 12:00 | 10.5N 85.0E | 25 kt | 998 mb | Tropical storm |
| Dec 9, 18:00 | 10.5N 85.0E | 25 kt | 998 mb | Tropical storm |
| Dec 10, 00:00 | 11.0N 84.5E | 25 kt | 998 mb | Tropical storm |
| Dec 10, 06:00 | 11.0N 84.0E | 25 kt | 998 mb | Tropical storm |
Other North Indian storms of 1999
- Unnamed tropical stormNorth Indian · 1999
- Unnamed cycloneNorth Indian · 1999
- Unnamed tropical stormNorth Indian · 1999
- Unnamed tropical depressionNorth Indian · 1999
- Unnamed tropical depressionNorth Indian · 1999
- Unnamed tropical depressionNorth Indian · 1999
- Unnamed cycloneNorth Indian · 1999
- Unnamed cycloneNorth Indian · 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. This storm’s winds are ten-minute averages from its regional agency. They read about 12 percent lower than the one-minute winds US agencies use, so a Saffir-Simpson category is not given for it.
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.