Unnamed tropical depression (1986)
Unnamed tropical depression peaked at 25 kt in the North Indian between August 10, 1986 and August 12, 1986.
Track and intensity
The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1986 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
- August 10, 1986 to August 12, 1986
- Peak strength
- Tropical Depression, 25 kt (29 mph), ten-minute wind
- Landfall
- No; closest approach 53 km (33 mi)
- Accumulated cyclone energy
- 0.0
- Identifier
- 1986223N18088
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 10, 12:00 | 18.0N 88.0E | 25 kt | Tropical storm | |
| Aug 10, 18:00 | 18.0N 87.4E | Tropical storm | ||
| Aug 11, 00:00 | 18.0N 86.8E | Tropical storm | ||
| Aug 11, 06:00 | 18.0N 86.2E | Tropical storm | ||
| Aug 11, 12:00 | 18.0N 85.5E | 25 kt | Tropical storm | |
| Aug 11, 18:00 | 18.0N 85.0E | Tropical storm | ||
| Aug 12, 00:00 | 18.0N 84.7E | Tropical storm |
Other North Indian storms of 1986
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.