Cyclone Ella (2017)

Cyclone Ella reached Category 1 in the South Pacific between May 7, 2017 and May 15, 2017, with a lowest pressure of 970 mb.

Track and intensity

The whole track of Cyclone Ella, 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: May 7, 2017 to May 15, 2017
Peak strength: Category 1, 70 kt (81 mph)
Lowest pressure: 970 mb (28.64 inHg)
Landfall: No; closest approach 139 km (86 mi)
Accumulated cyclone energy: 7.1
Identifier: SH192017

Deaths and damage

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

Track

Time (UTC)	Position	Wind	Pressure	Status
May 7, 06:00	17.5S 176.2W	20 kt	1007 mb	Disturbance
May 7, 12:00	17.3S 175.2W	25 kt	1004 mb	Tropical depression
May 7, 18:00	16.9S 174.5W	30 kt	1000 mb	Tropical depression
May 8, 00:00	16.4S 173.6W	35 kt	996 mb	Tropical storm
May 8, 06:00	16.1S 172.6W	40 kt	993 mb	Tropical storm
May 8, 12:00	15.9S 172.4W	40 kt	993 mb	Tropical storm
May 8, 18:00	15.8S 172.4W	40 kt	993 mb	Tropical storm
May 9, 00:00	15.2S 172.8W	45 kt	989 mb	Tropical storm
May 9, 06:00	15.0S 173.0W	45 kt	989 mb	Tropical storm
May 9, 12:00	14.9S 173.2W	45 kt	988 mb	Tropical storm
May 9, 18:00	14.9S 174.1W	45 kt	988 mb	Tropical storm
May 10, 00:00	14.8S 175.0W	50 kt	985 mb	Tropical storm
May 10, 06:00	14.6S 175.5W	50 kt	985 mb	Tropical storm
May 10, 12:00	14.3S 175.9W	50 kt	985 mb	Tropical storm
May 10, 18:00	14.3S 176.3W	55 kt	982 mb	Tropical storm
May 11, 00:00	14.2S 176.7W	55 kt	982 mb	Tropical storm
May 11, 06:00	14.1S 177.1W	60 kt	978 mb	Tropical storm
May 11, 12:00	14.1S 177.5W	65 kt	974 mb	Typhoon
May 11, 18:00	14.0S 177.8W	65 kt	974 mb	Typhoon
May 12, 00:00	13.8S 178.0W	70 kt	970 mb	Typhoon
May 12, 06:00	13.6S 178.2W	70 kt	970 mb	Typhoon
May 12, 12:00	13.5S 178.5W	70 kt	970 mb	Typhoon
May 12, 18:00	13.6S 178.6W	65 kt	974 mb	Typhoon
May 13, 00:00	13.6S 178.8W	60 kt	978 mb	Tropical storm
May 13, 06:00	13.5S 179.1W	55 kt	982 mb	Tropical storm
May 13, 12:00	13.4S 179.5W	50 kt	985 mb	Tropical storm
May 13, 18:00	13.1S 179.8W	45 kt	989 mb	Tropical storm
May 14, 00:00	12.9S 179.0E	40 kt	993 mb	Tropical storm
May 14, 06:00	12.5S 177.6E	30 kt	1000 mb	Tropical depression
May 14, 12:00	12.1S 176.3E	25 kt	1004 mb	Tropical depression
May 14, 18:00	12.1S 175.4E	20 kt	1007 mb	Disturbance
May 15, 00:00	12.4S 174.1E	20 kt	1007 mb	Disturbance
May 15, 06:00	12.9S 172.7E	20 kt	1007 mb	Disturbance
May 15, 12:00	13.0S 171.6E	20 kt	1007 mb	Disturbance

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.