The 2017 season

Cyclone Cook (2017)

Cyclone Cook reached Category 2 in the South Pacific between April 6, 2017 and April 17, 2017, with a lowest pressure of 956 mb, and made landfall.

Track and intensity

The whole track of Cyclone Cook, colored by strength, with the other storms of the 2017 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
April 6, 2017 to April 17, 2017
Peak strength
Category 2, 90 kt (104 mph)
Lowest pressure
956 mb (28.23 inHg)
Landfall
Yes
Accumulated cyclone energy
7.8
Tropical-storm-force wind reached
145 nmi (269 km, 167 mi) from the center at its widest
Hurricane-force wind reached
45 nmi (83 km, 52 mi) from the center at its widest
Eyewall radius at its peak
15 nmi (28 km, 17 mi)
Overall size
200 nmi (370 km, 230 mi) to the outermost closed isobar
Fastest the center moved
30 kt (35 mph)
Identifier
SH162017

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Apr 6, 18:0012.1S 170.9E20 kt1007 mbDisturbance
Apr 7, 00:0012.8S 170.4E25 kt1004 mbTropical depression
Apr 7, 06:0013.5S 169.8E25 kt1004 mbTropical depression
Apr 7, 12:0014.2S 169.0E25 kt1002 mbTropical depression
Apr 7, 18:0014.8S 168.4E30 kt1004 mbTropical depression
Apr 8, 00:0015.4S 167.9E35 kt997 mbTropical storm
Apr 8, 06:0015.9S 167.8E40 kt993 mbTropical storm
Apr 8, 12:0016.5S 167.7E50 kt985 mbTropical storm
Apr 8, 18:0017.1S 167.7E55 kt988 mbTropical storm
Apr 9, 00:0017.6S 167.6E60 kt985 mbTropical storm
Apr 9, 06:0018.0S 167.4E65 kt974 mbTyphoon
Apr 9, 12:0018.6S 166.5E70 kt970 mbTyphoon
Apr 9, 18:0019.2S 166.1E80 kt974 mbTyphoon
Apr 10, 00:0020.4S 165.7E90 kt956 mbTyphoon
Apr 10, 06:0021.6S 165.6E85 kt959 mbTyphoon
Apr 10, 12:0022.8S 165.5E75 kt967 mbTyphoon
Apr 10, 18:0023.6S 165.5E65 kt980 mbTyphoon
Apr 11, 00:0024.7S 166.1E55 kt985 mbTropical storm
Apr 11, 06:0025.6S 167.0E50 kt991 mbTropical storm
Apr 11, 12:0026.0S 168.5E45 kt994 mbExtratropical
Apr 11, 18:0026.9S 170.5E45 kt989 mbExtratropical
Apr 12, 00:0027.8S 172.0E45 kt989 mbExtratropical
Apr 12, 06:0029.0S 173.5E40 kt993 mbExtratropical
Apr 12, 12:0030.7S 174.6E40 kt990 mbNot reported
Apr 12, 18:0032.8S 175.6E50 kt987 mbNot reported
Apr 13, 00:0035.5S 176.6E55 kt985 mbNot reported
Apr 13, 06:0037.7S 176.7E55 kt982 mbNot reported
Apr 13, 12:0040.3S 176.1E40 kt989 mbNot reported
Apr 13, 18:0043.1S 174.6E50 kt984 mbNot reported
Apr 14, 00:0045.3S 172.9E45 kt983 mbNot reported
Apr 14, 06:0047.5S 171.3E45 kt980 mbNot reported
Apr 14, 12:0049.8S 169.2E35 kt980 mbNot reported
Apr 14, 18:0050.5S 168.8E30 kt979 mbNot reported
Apr 15, 00:0050.9S 169.3E30 kt981 mbNot reported
Apr 15, 06:0051.3S 170.3E30 kt983 mbNot reported
Apr 15, 12:0050.7S 172.5E30 kt987 mbNot reported
Apr 15, 18:0050.5S 175.7E30 kt992 mbNot reported
Apr 16, 00:0050.4S 178.7E30 kt996 mbNot reported
Apr 16, 06:0050.4S 180.8E30 kt998 mbNot reported
Apr 16, 12:0050.5S 182.7E25 kt1000 mbNot reported
Apr 16, 18:0051.0S 183.9E25 kt1001 mbNot reported
Apr 17, 00:0051.8S 185.7E20 kt1002 mbNot reported
Apr 17, 06:0052.6S 188.1E20 kt1004 mbNot reported

Other South Pacific storms of 2017

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.