Tropical Storm Dan (1981)
Tropical Storm Dan peaked at 50 kt in the South Indian between December 14, 1980 and December 18, 1980, with a lowest pressure of 985 mb.
Radar
Reflectivity now over Tropical Storm Dan. Open it to see storms, cones and warnings on the map.
Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
The storm
- Basin
- South Indian
- Dates
- December 14, 1980 to December 18, 1980
- Peak strength
- Tropical Storm, 50 kt (58 mph), ten-minute wind
- Lowest pressure
- 985 mb (29.09 inHg)
- Landfall
- No; closest approach 361 km (224 mi)
- Accumulated cyclone energy
- 1.3
- Identifier
- 1980349S09100
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 |
|---|---|---|---|---|
| Dec 14, 00:00 | 8.6S 99.6E | 20 kt | 1006 mb | Tropical storm |
| Dec 14, 06:00 | 8.5S 100.3E | 25 kt | 1006 mb | Tropical storm |
| Dec 14, 12:00 | 8.4S 101.1E | 25 kt | 1005 mb | Tropical storm |
| Dec 14, 18:00 | 8.5S 101.9E | 25 kt | 1005 mb | Tropical storm |
| Dec 15, 00:00 | 8.8S 102.4E | 25 kt | 1004 mb | Tropical storm |
| Dec 15, 06:00 | 9.7S 102.1E | 25 kt | 1002 mb | Tropical storm |
| Dec 15, 12:00 | 10.5S 101.4E | 25 kt | 1000 mb | Tropical storm |
| Dec 15, 18:00 | 10.6S 101.9E | 30 kt | 996 mb | Tropical storm |
| Dec 16, 00:00 | 10.3S 102.3E | 40 kt | 992 mb | Tropical storm |
| Dec 16, 06:00 | 9.9S 103.0E | 45 kt | 989 mb | Tropical storm |
| Dec 16, 12:00 | 9.7S 103.7E | 50 kt | 986 mb | Tropical storm |
| Dec 16, 18:00 | 10.1S 104.2E | 50 kt | 985 mb | Tropical storm |
| Dec 17, 00:00 | 10.9S 104.5E | 50 kt | 986 mb | Tropical storm |
| Dec 17, 06:00 | 11.8S 104.7E | 40 kt | 988 mb | Tropical storm |
| Dec 17, 12:00 | 12.3S 104.9E | 30 kt | 990 mb | Tropical storm |
| Dec 17, 18:00 | 13.0S 105.1E | 30 kt | 992 mb | Tropical storm |
| Dec 18, 00:00 | 13.6S 105.4E | 25 kt | 994 mb | Tropical storm |
Other South Indian storms of 1981
- Cyclone Adelaide:AliceSouth Indian · 1981
- Tropical Depression BettinaSouth Indian · 1981
- Tropical Depression Bert:ChristeSouth Indian · 1981
- Tropical Storm CarolSouth Indian · 1981
- Cyclone CarolSouth Indian · 1981
- Tropical Depression DianaSouth Indian · 1981
- Tropical Storm EdnaSouth Indian · 1981
- Cyclone FelixSouth Indian · 1981
- Tropical Depression EdwigSouth Indian · 1981
- Cyclone FlorineSouth Indian · 1981
- Cyclone MabelSouth Indian · 1981
- Tropical Storm GaelleSouth Indian · 1981
- Tropical Depression GaelleSouth Indian · 1981
- Tropical Storm HelyetteSouth Indian · 1981
- Tropical Storm IadineSouth Indian · 1981
- Cyclone NeilSouth Indian · 1981
- Cyclone JohanneSouth Indian · 1981
- Tropical Storm KlaraSouth Indian · 1981
- Cyclone OlgaSouth Indian · 1981
- Tropical Storm LisaSouth Indian · 1981
- Tropical Storm PaddySouth Indian · 1981
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.