Unnamed cyclone (1991)
Unnamed cyclone reached Category 5 in the North Indian between April 22, 1991 and April 30, 1991, with a lowest pressure of 918 mb, and made landfall. It killed 138,866 people, as Wikidata records it.
Radar
Reflectivity now over Unnamed cyclone. 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
- North Indian
- Dates
- April 22, 1991 to April 30, 1991
- Peak strength
- Category 5, 140 kt (161 mph)
- Lowest pressure
- 918 mb (27.11 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 17.6
- Fastest the center moved
- 26 kt (30 mph)
- Identifier
- IO021991
Deaths and damage
The sources count different things and are not added together.
Wikidata
138,866 deathsno damage figure
A community-maintained total, usually direct and indirect deaths together and damage worldwide. Joined to this storm by its IBTrACS serial, not by name.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Apr 22, 18:00 | 10.0N 91.2E | 20 kt | Not reported | |
| Apr 23, 00:00 | 9.7N 91.0E | 20 kt | Not reported | |
| Apr 23, 06:00 | 9.5N 90.8E | 20 kt | Not reported | |
| Apr 23, 12:00 | 9.4N 90.5E | 25 kt | Not reported | |
| Apr 23, 18:00 | 9.4N 90.1E | 25 kt | Not reported | |
| Apr 24, 00:00 | 9.4N 89.8E | 25 kt | 1002 mb | Not reported |
| Apr 24, 06:00 | 9.5N 89.5E | 30 kt | 1002 mb | Not reported |
| Apr 24, 12:00 | 9.7N 89.3E | 30 kt | 1002 mb | Not reported |
| Apr 24, 18:00 | 10.2N 89.1E | 35 kt | 1002 mb | Not reported |
| Apr 25, 00:00 | 10.7N 88.8E | 35 kt | 1002 mb | Not reported |
| Apr 25, 06:00 | 11.0N 88.4E | 40 kt | 1000 mb | Not reported |
| Apr 25, 12:00 | 11.2N 88.0E | 40 kt | 996 mb | Not reported |
| Apr 25, 18:00 | 11.3N 87.7E | 45 kt | 998 mb | Not reported |
| Apr 26, 00:00 | 11.4N 87.4E | 50 kt | 994 mb | Not reported |
| Apr 26, 06:00 | 11.6N 87.2E | 50 kt | 991 mb | Not reported |
| Apr 26, 12:00 | 11.9N 87.3E | 55 kt | 987 mb | Not reported |
| Apr 26, 18:00 | 12.2N 87.4E | 60 kt | 991 mb | Not reported |
| Apr 27, 00:00 | 12.7N 87.5E | 65 kt | 989 mb | Not reported |
| Apr 27, 06:00 | 13.3N 87.4E | 75 kt | 974 mb | Not reported |
| Apr 27, 12:00 | 13.9N 87.4E | 80 kt | 972 mb | Not reported |
| Apr 27, 18:00 | 14.5N 87.4E | 85 kt | 974 mb | Not reported |
| Apr 28, 00:00 | 15.0N 87.6E | 90 kt | 972 mb | Not reported |
| Apr 28, 06:00 | 15.6N 87.9E | 95 kt | 952 mb | Not reported |
| Apr 28, 12:00 | 16.4N 88.4E | 100 kt | 950 mb | Not reported |
| Apr 28, 18:00 | 17.3N 88.9E | 110 kt | 934 mb | Not reported |
| Apr 29, 00:00 | 18.3N 89.4E | 120 kt | 920 mb | Not reported |
| Apr 29, 06:00 | 19.4N 89.9E | 130 kt | 922 mb | Not reported |
| Apr 29, 12:00 | 20.6N 90.7E | 140 kt | 918 mb | Not reported |
| Apr 29, 18:00 | 21.9N 91.6E | 135 kt | 920 mb | Not reported |
| Apr 30, 00:00 | 23.2N 93.0E | 110 kt | 994 mb | Not reported |
| Apr 30, 06:00 | 24.2N 94.8E | 85 kt | 996 mb | Not reported |
| Apr 30, 12:00 | 25.0N 97.0E | 60 kt | Not reported | |
| Apr 30, 18:00 | 25.7N 99.7E | 40 kt | Not reported |
Other North Indian storms of 1991
- Unnamed tropical stormNorth Indian · 1991
- Unnamed tropical stormNorth Indian · 1991
- Unnamed tropical depressionNorth Indian · 1991
- Unnamed tropical depressionNorth Indian · 1991
- Unnamed tropical depressionNorth Indian · 1991
- Unnamed tropical depressionNorth Indian · 1991
- Unnamed tropical depressionNorth Indian · 1991
- Unnamed tropical stormNorth Indian · 1991
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.