The 1991 season

Unnamed tropical storm (1991)

Unnamed tropical storm peaked at 50 kt in the North Indian between May 30, 1991 and June 3, 1991, with a lowest pressure of 990 mb, and made landfall.

Radar

Reflectivity now over Unnamed tropical storm. Open it to see storms, cones and warnings on the map.

Open the live radar with storms, cones and warnings

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

The storm

Basin
North Indian
Dates
May 30, 1991 to June 3, 1991
Peak strength
Tropical Storm, 50 kt (58 mph)
Lowest pressure
990 mb (29.23 inHg)
Landfall
Yes
Accumulated cyclone energy
1.1
Identifier
IO031991

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)PositionWindPressureStatus
May 30, 00:0013.6N 90.8E20 ktNot reported
May 30, 06:0013.6N 90.2E20 ktNot reported
May 30, 12:0013.7N 89.5E20 ktNot reported
May 30, 18:0014.0N 88.8E25 ktNot reported
May 31, 00:0014.6N 88.6E25 kt1000 mbNot reported
May 31, 06:0015.3N 88.6E25 kt998 mbNot reported
May 31, 12:0016.1N 88.8E25 kt996 mbNot reported
May 31, 18:0016.9N 89.1E30 kt996 mbNot reported
Jun 1, 00:0017.8N 89.4E30 kt994 mbNot reported
Jun 1, 06:0018.7N 89.7E35 kt994 mbNot reported
Jun 1, 12:0019.8N 90.1E40 kt990 mbNot reported
Jun 1, 18:0020.9N 90.5E45 kt992 mbNot reported
Jun 2, 00:0022.1N 91.0E50 kt990 mbNot reported
Jun 2, 06:0023.5N 91.8E45 kt996 mbNot reported
Jun 2, 12:0024.8N 92.9E35 kt1000 mbNot reported
Jun 2, 18:0025.7N 94.5E30 ktNot reported
Jun 3, 00:0026.7N 96.4E25 ktNot reported

Other North Indian storms of 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.