The 1981 season

Tropical Storm Esau (1981)

Tropical Storm Esau peaked at 50 kt in the South Pacific between March 1, 1981 and March 5, 1981, with a lowest pressure of 980 mb.

Radar

Reflectivity now over Tropical Storm Esau. 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
South Pacific
Dates
March 1, 1981 to March 5, 1981
Peak strength
Tropical Storm, 50 kt (58 mph)
Lowest pressure
980 mb (28.94 inHg)
Landfall
No; closest approach 109 km (68 mi)
Accumulated cyclone energy
2.2
Identifier
SH211981

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
Mar 1, 06:006.2S 176.1E20 ktTropical storm
Mar 1, 12:008.1S 176.8E30 kt997 mbTropical storm
Mar 1, 18:009.5S 178.2E35 ktTropical storm
Mar 2, 00:0010.4S 179.7W40 kt995 mbTropical storm
Mar 2, 06:0011.0S 177.6W40 ktTropical storm
Mar 2, 12:0011.3S 175.5W45 kt990 mbTropical storm
Mar 2, 18:0011.8S 173.5W50 ktTropical storm
Mar 3, 00:0012.8S 171.6W50 kt985 mbTropical storm
Mar 3, 06:0013.9S 169.8W50 ktTropical storm
Mar 3, 12:0015.1S 168.2W50 kt980 mbTropical storm
Mar 3, 18:0016.4S 166.8W45 ktTropical storm
Mar 4, 00:0018.0S 194.5E45 kt987 mbTropical storm
Mar 4, 06:0019.2S 195.5ENot reported
Mar 4, 12:0020.5S 196.5E40 kt990 mbTropical storm
Mar 4, 18:0021.6S 197.2ETropical storm
Mar 5, 00:0023.0S 198.0E30 kt997 mbTropical storm
Mar 5, 06:0025.7S 199.3ENot reported
Mar 5, 12:0029.0S 201.0E30 kt997 mbNot reported

Other South Pacific storms of 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.

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.