Tropical Storm Isis (1986)
Tropical Storm Isis peaked at 45 kt in the Eastern Pacific between August 19, 1986 and August 24, 1986.
Track and intensity
The whole track of Tropical Storm Isis, 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
- Eastern Pacific
- Dates
- August 19, 1986 to August 24, 1986
- Peak strength
- Tropical Storm, 45 kt (52 mph)
- Landfall
- No; closest approach 938 km (583 mi)
- Accumulated cyclone energy
- 2.1
- Fastest the center moved
- 14 kt (16 mph)
- Identifier
- EP091986
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 19, 18:00 | 15.4N 114.0W | 25 kt | Tropical depression | |
| Aug 20, 00:00 | 15.5N 115.0W | 25 kt | Tropical depression | |
| Aug 20, 06:00 | 15.8N 116.0W | 30 kt | Tropical depression | |
| Aug 20, 12:00 | 16.0N 117.5W | 35 kt | Tropical storm | |
| Aug 20, 18:00 | 16.4N 118.8W | 35 kt | Tropical storm | |
| Aug 21, 00:00 | 16.7N 120.2W | 45 kt | Tropical storm | |
| Aug 21, 06:00 | 17.1N 121.6W | 45 kt | Tropical storm | |
| Aug 21, 12:00 | 17.7N 122.9W | 45 kt | Tropical storm | |
| Aug 21, 18:00 | 18.4N 124.1W | 45 kt | Tropical storm | |
| Aug 22, 00:00 | 19.0N 125.2W | 40 kt | Tropical storm | |
| Aug 22, 06:00 | 19.7N 126.4W | 45 kt | Tropical storm | |
| Aug 22, 12:00 | 20.4N 127.6W | 45 kt | Tropical storm | |
| Aug 22, 18:00 | 21.0N 128.9W | 45 kt | Tropical storm | |
| Aug 23, 00:00 | 21.6N 130.2W | 40 kt | Tropical storm | |
| Aug 23, 06:00 | 22.0N 131.6W | 35 kt | Tropical storm | |
| Aug 23, 12:00 | 22.0N 133.0W | 30 kt | Tropical depression | |
| Aug 23, 18:00 | 21.6N 134.1W | 25 kt | Tropical depression | |
| Aug 24, 00:00 | 21.1N 135.1W | 25 kt | Tropical depression |
Other Eastern Pacific storms of 1986
- Hurricane AgathaEastern Pacific · 1986
- Tropical Storm BlasEastern Pacific · 1986
- Hurricane CeliaEastern Pacific · 1986
- Tropical Storm DarbyEastern Pacific · 1986
- Hurricane EstelleEastern Pacific · 1986
- Hurricane FrankEastern Pacific · 1986
- Unnamed tropical depressionEastern Pacific · 1986
- Unnamed tropical depressionEastern Pacific · 1986
- Hurricane GeorgetteEastern Pacific · 1986
- Tropical Storm HowardEastern Pacific · 1986
- Hurricane JavierEastern Pacific · 1986
- Tropical Storm KayEastern Pacific · 1986
- Tropical Storm LesterEastern Pacific · 1986
- Tropical Storm MadelineEastern Pacific · 1986
- Hurricane NewtonEastern Pacific · 1986
- Hurricane OrleneEastern Pacific · 1986
- Hurricane PaineEastern Pacific · 1986
- Hurricane RoslynEastern Pacific · 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.
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.
The National Hurricane Center has published no tropical cyclone report for this storm.