The 2015 season

Cyclone Pam (2015)

Cyclone Pam reached Category 5 in the South Pacific between March 7, 2015 and March 20, 2015, with a lowest pressure of 911 mb.

Track and intensity

The whole track of Cyclone Pam, colored by strength, with the other storms of the 2015 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
March 7, 2015 to March 20, 2015
Peak strength
Category 5, 150 kt (173 mph)
Lowest pressure
911 mb (26.90 inHg)
Landfall
No; closest approach 105 km (65 mi)
Accumulated cyclone energy
39.1
Tropical-storm-force wind reached
185 nmi (343 km, 213 mi) from the center at its widest
Hurricane-force wind reached
35 nmi (65 km, 40 mi) from the center at its widest
Eyewall radius at its peak
12 nmi (22 km, 14 mi)
Overall size
260 nmi (482 km, 299 mi) to the outermost closed isobar
Fastest the center moved
44 kt (51 mph)
Identifier
SH172015

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Mar 7, 06:008.0S 169.5E20 kt1000 mbNot reported
Mar 7, 12:008.2S 169.0ENot reported
Mar 7, 18:008.4S 169.0E20 kt1000 mbNot reported
Mar 8, 00:008.8S 168.8E20 kt1001 mbNot reported
Mar 8, 06:008.0S 169.7E25 kt997 mbNot reported
Mar 8, 12:007.5S 168.9E25 kt1004 mbTropical depression
Mar 8, 18:007.8S 169.2E30 kt1000 mbTropical depression
Mar 9, 00:008.1S 169.6E30 kt1000 mbTropical depression
Mar 9, 06:008.5S 170.1E35 kt996 mbTropical storm
Mar 9, 12:009.0S 170.6E45 kt989 mbTropical storm
Mar 9, 18:009.3S 170.5E55 kt982 mbTropical storm
Mar 10, 00:009.7S 170.5E60 kt978 mbTropical storm
Mar 10, 06:0010.2S 170.5E65 kt974 mbTyphoon
Mar 10, 12:0010.6S 170.1E75 kt967 mbTyphoon
Mar 10, 18:0010.8S 170.0E85 kt959 mbTyphoon
Mar 11, 00:0011.0S 169.7E100 kt948 mbTyphoon
Mar 11, 06:0011.0S 169.8E105 kt944 mbTyphoon
Mar 11, 12:0011.3S 170.0E110 kt941 mbTyphoon
Mar 11, 18:0011.9S 170.2E115 kt937 mbTyphoon
Mar 12, 00:0012.7S 170.1E120 kt933 mbTyphoon
Mar 12, 06:0013.4S 170.1E125 kt929 mbTyphoon
Mar 12, 12:0014.3S 169.7E135 kt922 mbSuper typhoon
Mar 12, 18:0015.0S 169.3E140 kt918 mbSuper typhoon
Mar 13, 00:0015.9S 169.0E140 kt918 mbSuper typhoon
Mar 13, 06:0016.6S 168.7E150 kt911 mbSuper typhoon
Mar 13, 12:0017.6S 168.7E150 kt911 mbSuper typhoon
Mar 13, 18:0019.0S 168.9E145 kt914 mbSuper typhoon
Mar 14, 00:0020.5S 169.2E140 kt918 mbSuper typhoon
Mar 14, 06:0022.3S 170.1E135 kt922 mbSuper typhoon
Mar 14, 12:0024.6S 171.1E125 kt929 mbTyphoon
Mar 14, 18:0027.0S 172.7E115 kt937 mbTyphoon
Mar 15, 00:0030.0S 174.8E95 kt952 mbTyphoon
Mar 15, 06:0031.8S 176.7E65 kt974 mbTyphoon
Mar 15, 12:0033.8S 178.5E55 kt982 mbExtratropical
Mar 15, 18:0035.5S 180.0E70 kt960 mbNot reported
Mar 16, 00:0036.8S 180.6E70 kt962 mbNot reported
Mar 16, 06:0038.1S 181.7E70 kt959 mbNot reported
Mar 16, 12:0039.2S 182.6E70 kt956 mbNot reported
Mar 16, 18:0040.4S 183.9E75 kt952 mbNot reported
Mar 17, 00:0042.0S 186.3E80 kt945 mbNot reported
Mar 17, 06:0043.4S 187.7E80 kt944 mbNot reported
Mar 17, 12:0045.1S 188.6E75 kt949 mbNot reported
Mar 17, 18:0046.2S 189.5E75 kt943 mbNot reported
Mar 18, 00:0046.4S 189.4E70 kt948 mbNot reported
Mar 18, 06:0046.3S 190.4E75 kt941 mbNot reported
Mar 18, 12:0046.2S 192.5E65 kt953 mbNot reported
Mar 18, 18:0047.0S 195.0E65 kt949 mbNot reported
Mar 19, 00:0047.0S 196.9E60 kt958 mbNot reported
Mar 19, 06:0046.9S 199.1E60 kt964 mbNot reported
Mar 19, 12:0046.0S 201.6E60 kt966 mbNot reported
Mar 19, 18:0045.5S 206.0E50 kt968 mbNot reported
Mar 20, 00:0045.2S 212.0E50 kt969 mbNot reported

Other South Pacific storms of 2015

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.