Cyclone Leo (1977)
Cyclone Leo reached Category 2 in the South Indian between March 24, 1977 and March 28, 1977, with a lowest pressure of 960 mb, and made landfall.
Track and intensity
The whole track of Cyclone Leo, colored by strength, with the other storms of the 1977 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 Indian
- Dates
- March 24, 1977 to March 28, 1977
- Peak strength
- Category 2, 90 kt (104 mph)
- Lowest pressure
- 960 mb (28.35 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 5.4
- Identifier
- SH231977
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 24, 00:00 | 15.0S 124.5E | 25 kt | Tropical storm | |
| Mar 24, 06:00 | 15.2S 123.8E | 30 kt | Tropical storm | |
| Mar 24, 12:00 | 15.5S 123.0E | 35 kt | Tropical storm | |
| Mar 24, 18:00 | 16.0S 122.2E | 35 kt | Tropical storm | |
| Mar 25, 00:00 | 16.5S 121.3E | 40 kt | Tropical storm | |
| Mar 25, 06:00 | 16.9S 120.5E | 50 kt | Tropical storm | |
| Mar 25, 12:00 | 17.3S 119.8E | 65 kt | Tropical storm | |
| Mar 25, 18:00 | 17.7S 119.3E | 75 kt | Tropical storm | |
| Mar 26, 00:00 | 18.2S 118.9E | 85 kt | Tropical storm | |
| Mar 26, 06:00 | 18.9S 118.7E | 90 kt | Tropical storm | |
| Mar 26, 12:00 | 19.6S 118.7E | 90 kt | Tropical storm | |
| Mar 26, 18:00 | 20.1S 118.9E | 80 kt | Tropical storm | |
| Mar 27, 00:00 | 20.6S 119.3E | 65 kt | Tropical storm | |
| Mar 27, 06:00 | 21.1S 120.0E | 50 kt | Tropical storm | |
| Mar 27, 12:00 | 21.5S 120.9E | 35 kt | Tropical storm | |
| Mar 27, 18:00 | 21.8S 121.8E | 30 kt | Tropical storm | |
| Mar 28, 00:00 | 21.8S 122.8E | 30 kt | Tropical storm |
Other South Indian storms of 1977
- Tropical Depression AgatheSouth Indian · 1977
- Tropical Depression BrigittaSouth Indian · 1977
- Tropical Storm HarrySouth Indian · 1977
- Tropical Depression ClarenceSouth Indian · 1977
- Cyclone IreneSouth Indian · 1977
- Tropical Depression DomitileSouth Indian · 1977
- Tropical Depression EmilieSouth Indian · 1977
- Tropical Depression FifiSouth Indian · 1977
- Tropical Depression GildaSouth Indian · 1977
- Unnamed tropical depressionSouth Indian · 1977
- Tropical Depression HerveaSouth Indian · 1977
- Cyclone Io:JackSouth Indian · 1977
- Cyclone KarenSouth Indian · 1977
- Tropical Storm VernaSouth Indian · 1977
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.