Tropical Storm Lena (1971)
Tropical Storm Lena peaked at 55 kt in the South Pacific between March 13, 1971 and March 23, 1971, with a lowest pressure of 980 mb.
Track and intensity
The whole track of Tropical Storm Lena, colored by strength, with the other storms of the 1971 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
- South Pacific
- Dates
- March 13, 1971 to March 23, 1971
- Peak strength
- Tropical Storm, 55 kt (63 mph)
- Lowest pressure
- 980 mb (28.94 inHg)
- Landfall
- No; closest approach 123 km (76 mi)
- Accumulated cyclone energy
- 4.0
- Identifier
- SH241971
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 |
|---|---|---|---|---|
| Mar 13, 00:00 | 12.5S 154.8E | 45 kt | Tropical storm | |
| Mar 13, 06:00 | 13.0S 155.3E | 35 kt | Tropical storm | |
| Mar 13, 12:00 | 13.8S 155.9E | 35 kt | Tropical storm | |
| Mar 13, 18:00 | 14.8S 156.4E | 35 kt | Tropical storm | |
| Mar 14, 00:00 | 16.0S 156.9E | 35 kt | Tropical storm | |
| Mar 14, 06:00 | 17.2S 157.0E | 35 kt | Tropical storm | |
| Mar 14, 12:00 | 18.4S 156.6E | 30 kt | Tropical storm | |
| Mar 14, 18:00 | 19.4S 156.0E | 40 kt | Tropical storm | |
| Mar 15, 00:00 | 20.2S 155.4E | 50 kt | Tropical storm | |
| Mar 15, 06:00 | 21.1S 154.8E | 45 kt | Tropical storm | |
| Mar 15, 12:00 | 21.8S 154.3E | 45 kt | Tropical storm | |
| Mar 15, 18:00 | 22.4S 154.1E | 50 kt | 981 mb | Tropical storm |
| Mar 16, 00:00 | 23.0S 154.2E | 55 kt | Tropical storm | |
| Mar 16, 06:00 | 23.6S 154.7E | 50 kt | Tropical storm | |
| Mar 16, 12:00 | 24.0S 155.0E | 45 kt | Tropical storm | |
| Mar 16, 18:00 | 23.9S 155.2E | 45 kt | Tropical storm | |
| Mar 17, 00:00 | 23.5S 155.5E | 45 kt | Tropical storm | |
| Mar 17, 06:00 | 23.2S 155.8E | 40 kt | Tropical storm | |
| Mar 17, 12:00 | 22.8S 156.4E | 35 kt | Tropical storm | |
| Mar 17, 18:00 | 22.5S 157.2E | 30 kt | Tropical storm | |
| Mar 18, 00:00 | 22.1S 158.1E | 30 kt | Tropical storm | |
| Mar 18, 06:00 | 21.8S 159.1E | 30 kt | Tropical storm | |
| Mar 18, 12:00 | 21.4S 160.1E | 30 kt | Tropical storm | |
| Mar 18, 18:00 | 21.4S 160.9E | 25 kt | Tropical storm | |
| Mar 19, 00:00 | 21.5S 161.7E | 25 kt | 990 mb | Tropical storm |
| Mar 19, 06:00 | 21.8S 162.7E | 20 kt | Tropical storm | |
| Mar 19, 12:00 | 22.2S 163.8E | 20 kt | 990 mb | Tropical storm |
| Mar 19, 18:00 | 23.0S 165.7E | 15 kt | Tropical storm | |
| Mar 20, 00:00 | 23.5S 164.9E | 40 kt | 990 mb | Not reported |
| Mar 20, 06:00 | 24.3S 166.6E | Not reported | ||
| Mar 20, 12:00 | 25.2S 168.7E | 30 kt | 997 mb | Not reported |
| Mar 20, 18:00 | 26.3S 170.2E | Not reported | ||
| Mar 21, 00:00 | 27.5S 171.8E | 30 kt | 997 mb | Not reported |
| Mar 21, 06:00 | 28.8S 173.6E | Not reported | ||
| Mar 21, 12:00 | 30.4S 175.7E | 30 kt | 997 mb | Not reported |
| Mar 21, 18:00 | 32.6S 177.8E | Not reported | ||
| Mar 22, 00:00 | 34.8S 180.3E | 30 kt | 997 mb | Not reported |
| Mar 22, 06:00 | 36.4S 183.2E | Not reported | ||
| Mar 22, 12:00 | 37.3S 186.3E | 40 kt | 990 mb | Not reported |
| Mar 22, 18:00 | 37.4S 189.2E | Not reported | ||
| Mar 23, 00:00 | 37.5S 192.3E | 40 kt | 990 mb | Not reported |
| Mar 23, 06:00 | 38.1S 196.2E | Not reported | ||
| Mar 23, 12:00 | 39.1S 200.7E | 40 kt | 990 mb | Not reported |
Other South Pacific storms of 1971
- Tropical Depression Beverley:EvaSouth Pacific · 1971
- Tropical Storm PriscillaSouth Pacific · 1971
- Tropical Storm RosieSouth Pacific · 1971
- Unnamed tropical depressionSouth Pacific · 1971
- Tropical Storm AggieSouth Pacific · 1971
- Tropical Storm DoraSouth Pacific · 1971
- Cyclone GertieSouth Pacific · 1971
- Tropical Storm IdaSouth Pacific · 1971
- Tropical Storm FionaSouth Pacific · 1971
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.