The 1998 season

Cyclone Pam (1998)

Cyclone Pam reached Category 1 in the South Pacific between December 2, 1997 and December 14, 1997, with a lowest pressure of 974 mb.

Track and intensity

The whole track of Cyclone Pam, colored by strength, with the other storms of the 1998 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
South Pacific
Dates
December 2, 1997 to December 14, 1997
Peak strength
Category 1, 65 kt (75 mph)
Lowest pressure
974 mb (28.76 inHg)
Landfall
No; closest approach 710 km (441 mi)
Accumulated cyclone energy
6.2
Identifier
SH071998

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Track

Time (UTC)PositionWindPressureStatus
Dec 2, 00:009.1S 164.9W20 ktTropical storm
Dec 2, 06:009.3S 165.4W25 ktTropical storm
Dec 2, 12:009.2S 165.9W25 ktTropical storm
Dec 2, 18:009.0S 166.2W25 ktTropical storm
Dec 3, 00:008.9S 166.4W25 ktTropical storm
Dec 3, 06:008.8S 166.7W25 ktTropical storm
Dec 3, 12:008.7S 166.9W25 ktTropical storm
Dec 3, 18:008.6S 167.1W25 ktTropical storm
Dec 4, 00:008.5S 167.4W25 ktTropical storm
Dec 4, 06:008.6S 167.7W25 ktTropical storm
Dec 4, 12:009.1S 167.7W25 ktTropical storm
Dec 4, 18:009.3S 167.4W25 ktTropical storm
Dec 5, 00:009.5S 166.9W20 kt998 mbTropical storm
Dec 5, 06:009.6S 166.4W25 kt998 mbTropical storm
Dec 5, 12:009.9S 165.4W30 kt998 mbTropical storm
Dec 5, 18:0010.4S 164.3W35 kt997 mbTropical storm
Dec 6, 00:0011.0S 163.5W40 kt997 mbTropical storm
Dec 6, 06:0011.6S 163.3W50 kt995 mbTropical storm
Dec 6, 12:0012.2S 163.2W65 kt995 mbTropical storm
Dec 6, 18:0012.9S 163.1W65 kt990 mbTropical storm
Dec 7, 00:0013.8S 162.8W65 kt985 mbTropical storm
Dec 7, 06:0014.7S 162.6W65 kt985 mbTropical storm
Dec 7, 12:0015.7S 162.3W65 kt980 mbTropical storm
Dec 7, 18:0016.7S 162.0W65 kt980 mbTropical storm
Dec 8, 00:0017.6S 161.6W55 kt980 mbTropical storm
Dec 8, 06:0018.6S 161.2W55 kt975 mbTropical storm
Dec 8, 12:0019.5S 160.7W60 kt975 mbTropical storm
Dec 8, 18:0020.2S 160.2W60 kt975 mbTropical storm
Dec 9, 00:0020.7S 159.6W60 kt980 mbTropical storm
Dec 9, 06:0021.4S 158.9W60 kt980 mbTropical storm
Dec 9, 12:0022.1S 158.1W55 kt985 mbTropical storm
Dec 9, 18:0022.9S 157.1W50 kt987 mbTropical storm
Dec 10, 00:0023.8S 155.8W30 kt990 mbTropical storm
Dec 10, 06:0024.0S 156.3W35 kt995 mbNot reported
Dec 10, 12:0024.9S 155.4W30 kt997 mbNot reported
Dec 10, 18:0025.5S 153.5W30 kt997 mbNot reported
Dec 11, 00:0025.9S 152.2W30 kt997 mbNot reported
Dec 11, 06:0026.5S 151.0W30 kt997 mbNot reported
Dec 11, 12:0027.9S 149.2W30 kt997 mbNot reported
Dec 11, 18:0029.5S 147.5W30 kt997 mbNot reported
Dec 12, 00:0030.5S 146.5W30 kt997 mbNot reported
Dec 12, 06:0031.5S 145.5W30 kt997 mbNot reported
Dec 12, 12:0032.8S 144.3W30 kt997 mbNot reported
Dec 12, 18:0036.5S 141.0W30 kt997 mbNot reported
Dec 13, 00:0040.0S 138.5W30 kt997 mbNot reported
Dec 13, 06:0043.5S 136.0W30 kt992 mbNot reported
Dec 13, 12:0045.0S 135.0W40 kt984 mbNot reported
Dec 13, 18:0049.0S 130.0W40 kt982 mbNot reported
Dec 14, 00:0053.0S 124.0W35 kt974 mbNot reported
Dec 14, 06:0055.0S 117.5WNot reported
Dec 14, 12:0057.5S 114.5WNot reported

Other South Pacific storms of 1998

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.