Unnamed hurricane (1975)
Unnamed hurricane reached Category 1 in the Eastern Pacific between August 31, 1975 and September 5, 1975, with a lowest pressure of 990 mb.
Track and intensity
The whole track of Unnamed hurricane, colored by strength, with the other storms of the 1975 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 31, 1975 to September 5, 1975
- Peak strength
- Category 1, 65 kt (75 mph)
- Lowest pressure
- 990 mb (29.23 inHg)
- Landfall
- No; closest approach 311 km (193 mi)
- Accumulated cyclone energy
- 3.3
- Fastest the center moved
- 50 kt (58 mph)
- Identifier
- CP011975
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 31, 00:00 | 31.0N 147.5W | 25 kt | Tropical depression | |
| Aug 31, 06:00 | 30.7N 149.4W | 25 kt | Tropical depression | |
| Aug 31, 12:00 | 30.4N 151.5W | 25 kt | Tropical depression | |
| Aug 31, 18:00 | 30.4N 153.5W | 25 kt | Tropical depression | |
| Sep 1, 00:00 | 30.6N 155.5W | 30 kt | Tropical depression | |
| Sep 1, 06:00 | 30.7N 156.5W | 30 kt | Tropical depression | |
| Sep 1, 12:00 | 31.0N 157.4W | 30 kt | Tropical depression | |
| Sep 1, 18:00 | 31.5N 158.3W | 30 kt | Tropical depression | |
| Sep 2, 00:00 | 32.0N 159.0W | 35 kt | Tropical storm | |
| Sep 2, 06:00 | 32.5N 159.6W | 35 kt | Tropical storm | |
| Sep 2, 12:00 | 33.4N 159.9W | 40 kt | Tropical storm | |
| Sep 2, 18:00 | 34.3N 159.7W | 40 kt | Tropical storm | |
| Sep 3, 00:00 | 35.0N 159.0W | 40 kt | Tropical storm | |
| Sep 3, 06:00 | 36.7N 158.0W | 55 kt | Tropical storm | |
| Sep 3, 12:00 | 38.2N 157.5W | 60 kt | Tropical storm | |
| Sep 3, 18:00 | 40.0N 156.0W | 65 kt | Hurricane | |
| Sep 4, 00:00 | 41.5N 154.0W | 65 kt | 990 mb | Hurricane |
| Sep 4, 06:00 | 44.0N 151.0W | 65 kt | Hurricane | |
| Sep 4, 12:00 | 47.0N 147.0W | 55 kt | Tropical storm | |
| Sep 4, 18:00 | 50.0N 142.6W | 45 kt | Tropical storm | |
| Sep 5, 00:00 | 54.0N 138.0W | 35 kt | Tropical storm |
Other Eastern Pacific storms of 1975
- Hurricane AgathaEastern Pacific · 1975
- Tropical Storm BridgetEastern Pacific · 1975
- Hurricane CarlottaEastern Pacific · 1975
- Unnamed tropical depressionEastern Pacific · 1975
- Hurricane DeniseEastern Pacific · 1975
- Tropical Storm EleanorEastern Pacific · 1975
- Tropical Storm FranceneEastern Pacific · 1975
- Tropical Storm GeorgetteEastern Pacific · 1975
- Tropical Storm HilaryEastern Pacific · 1975
- Hurricane IlsaEastern Pacific · 1975
- Hurricane JewelEastern Pacific · 1975
- Hurricane KatrinaEastern Pacific · 1975
- Unnamed tropical depressionEastern Pacific · 1975
- Hurricane LilyEastern Pacific · 1975
- Tropical Storm MonicaEastern Pacific · 1975
- Tropical Storm NanetteEastern Pacific · 1975
- Unnamed tropical depressionEastern Pacific · 1975
- Hurricane OliviaEastern Pacific · 1975
- Unnamed tropical depressionEastern Pacific · 1975
- Tropical Storm PriscillaEastern Pacific · 1975
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.