Tropical Depression Ivanne (1980)
Tropical Depression Ivanne peaked at 29 kt in the South Indian between January 24, 1980 and January 26, 1980, with a lowest pressure of 1000 mb.
Track and intensity
The whole track of Tropical Depression Ivanne, colored by strength, with the other storms of the 1980 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
- January 24, 1980 to January 26, 1980
- Peak strength
- Tropical Depression, 29 kt (33 mph), ten-minute wind
- Lowest pressure
- 1000 mb (29.53 inHg)
- Landfall
- No; closest approach 1960 km (1218 mi)
- Accumulated cyclone energy
- 0.0
- Identifier
- 1980024S11076
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 |
|---|---|---|---|---|
| Jan 24, 06:00 | 11.0S 76.0E | 29 kt | 1000 mb | Tropical storm |
| Jan 24, 12:00 | 11.3S 76.0E | Not reported | ||
| Jan 24, 18:00 | 11.9S 76.0E | Not reported | ||
| Jan 25, 00:00 | 12.2S 76.0E | Not reported | ||
| Jan 25, 06:00 | 12.7S 76.0E | 29 kt | 1000 mb | Tropical storm |
| Jan 25, 12:00 | 13.0S 76.0E | Not reported | ||
| Jan 25, 18:00 | 13.5S 76.0E | Not reported | ||
| Jan 26, 00:00 | 14.0S 76.0E | Not reported | ||
| Jan 26, 06:00 | 14.5S 76.0E | Disturbance |
Other South Indian storms of 1980
- Tropical Depression TonySouth Indian · 1980
- Cyclone AlbineSouth Indian · 1980
- Cyclone Claudette:ViolaSouth Indian · 1980
- Tropical Storm BereniceSouth Indian · 1980
- Tropical Storm Danitza:WilfSouth Indian · 1980
- Tropical Depression DanitzaSouth Indian · 1980
- Cyclone AmySouth Indian · 1980
- Tropical Depression EglantineSouth Indian · 1980
- Tropical Depression FloreSouth Indian · 1980
- Unnamed tropical depressionSouth Indian · 1980
- Unnamed tropical depressionSouth Indian · 1980
- Cyclone HyacintheSouth Indian · 1980
- Cyclone BrianSouth Indian · 1980
- Tropical Storm ClaraSouth Indian · 1980
- Cyclone DeanSouth Indian · 1980
- Cyclone JacintheSouth Indian · 1980
- Cyclone EnidSouth Indian · 1980
- Cyclone FredSouth Indian · 1980
- Tropical Storm KoliaSouth Indian · 1980
- Cyclone LaureSouth Indian · 1980
- Cyclone Doris:GloriaSouth Indian · 1980
- Unnamed tropical stormSouth Indian · 1980
- Unnamed tropical stormSouth Indian · 1980
- Unnamed tropical depressionSouth Indian · 1980
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.