Unnamed tropical storm (2021)
Unnamed tropical storm peaked at 35 kt in the South Indian between April 6, 2021 and April 11, 2021, with a lowest pressure of 1000 mb.
Track and intensity
The whole track of Unnamed tropical storm, colored by strength, with the other storms of the 2021 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
- April 6, 2021 to April 11, 2021
- Peak strength
- Tropical Storm, 35 kt (40 mph), ten-minute wind
- Lowest pressure
- 1000 mb (29.53 inHg)
- Landfall
- No; closest approach 783 km (487 mi)
- Accumulated cyclone energy
- 0.2
- Identifier
- 2021097S10090
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Apr 6, 18:00 | 9.5S 89.9E | Tropical storm | ||
| Apr 7, 00:00 | 9.5S 91.0E | 20 kt | 1004 mb | Tropical storm |
| Apr 7, 06:00 | 9.5S 91.5E | 25 kt | 1004 mb | Tropical storm |
| Apr 7, 12:00 | 9.5S 91.8E | 30 kt | 1003 mb | Tropical storm |
| Apr 7, 18:00 | 9.3S 92.0E | 30 kt | 1003 mb | Tropical storm |
| Apr 8, 00:00 | 9.4S 93.0E | 30 kt | 1003 mb | Tropical storm |
| Apr 8, 06:00 | 9.6S 93.5E | 30 kt | 1003 mb | Tropical storm |
| Apr 8, 12:00 | 10.1S 94.2E | 30 kt | 1001 mb | Tropical storm |
| Apr 8, 18:00 | 10.5S 95.1E | 30 kt | 1001 mb | Tropical storm |
| Apr 9, 00:00 | 10.7S 95.4E | 35 kt | 1000 mb | Tropical storm |
| Apr 9, 06:00 | 10.8S 96.0E | 35 kt | 1000 mb | Tropical storm |
| Apr 9, 12:00 | 11.3S 96.4E | 30 kt | 1001 mb | Tropical storm |
| Apr 9, 18:00 | 12.4S 97.2E | 30 kt | 1003 mb | Tropical storm |
| Apr 10, 00:00 | 12.5S 98.1E | 25 kt | 1003 mb | Tropical storm |
| Apr 10, 06:00 | 12.9S 99.0E | 25 kt | 1006 mb | Tropical storm |
| Apr 10, 12:00 | 13.2S 100.5E | 25 kt | 1006 mb | Tropical storm |
| Apr 10, 18:00 | 13.7S 101.8E | 20 kt | 1006 mb | Tropical storm |
| Apr 11, 00:00 | 13.8S 103.5E | 20 kt | 1006 mb | Tropical storm |
Other South Indian storms of 2021
- Cyclone AliciaSouth Indian · 2021
- Tropical Storm BongoyoSouth Indian · 2021
- Unnamed tropical stormSouth Indian · 2021
- Cyclone ChalaneSouth Indian · 2021
- Tropical Storm DaniloSouth Indian · 2021
- Unnamed tropical stormSouth Indian · 2021
- Cyclone EloiseSouth Indian · 2021
- Tropical Storm JoshuaSouth Indian · 2021
- Unnamed tropical stormSouth Indian · 2021
- Unnamed tropical stormSouth Indian · 2021
- Unnamed tropical stormSouth Indian · 2021
- Cyclone FarajiSouth Indian · 2021
- Cyclone GuambeSouth Indian · 2021
- Cyclone MarianSouth Indian · 2021
- Tropical Storm ImanSouth Indian · 2021
- Cyclone HabanaSouth Indian · 2021
- Unnamed tropical stormSouth Indian · 2021
- Cyclone SerojaSouth Indian · 2021
- Tropical Storm OdetteSouth Indian · 2021
- Tropical Storm JoboSouth Indian · 2021
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.