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Built 2026-10-19 (19 October 2026)

Alfred: 2017 South Pacific

Alfred reached 50 kt (93 km/h, 58 mph) (TS) in the 2017 South Pacific season, from 2017-02-15 to 2017-02-22, with track, wind and pressure and 1.2 ACE.

Data as of . Last revised (2026-10-17).

Key Facts

  • Alfred was a tropical storm at its peak in the 2017 South Pacific season.
  • Peak maximum sustained wind was 50 kt (93 km/h, 58 mph), reached on 19 February 2017, and the lowest pressure was 985 hPa.
  • The track runs from 15 February 2017 to 22 February 2017 with 61 six hourly positions.
  • Alfred accumulated 1.2 ACE.
  • 4 landfalls are recorded, the first on 15 February 2017.

Track

15 February 2017 to 22 February 2017
Track of Alfred 2017, coloured by intensity Alfred formed on 15 February 2017 and its track is coloured by category at each six hourly step, peaking as a tropical storm. Landfall 2017-02-15Landfall 2017-02-17Landfall 2017-02-21Landfall 2017-02-22
Alfred formed on 15 February 2017 and its track is coloured by category at each six hourly step, peaking as a tropical storm. Made with Natural Earth and IBTrACS. Ringed points mark landfalls or the latest advisory position.
Track of Alfred 2017, coloured by intensity: tracks drawn on the map
StormFirst position (lat, lon)Last position (lat, lon)Track points
Alfred-17.0, 137.1-17.0, 138.261

Wind

Knots, six hourly
Maximum sustained wind of Alfred Maximum sustained wind in knots every six hours, from 15 kt (28 km/h, 17 mph) at the start to a peak of 50 kt (93 km/h, 58 mph). 0 13 25 38 50 02-1502-1602-1702-1802-1902-2002-2102-22
Maximum sustained wind in knots every six hours, from 15 kt (28 km/h, 17 mph) at the start to a peak of 50 kt (93 km/h, 58 mph).
Maximum sustained wind of Alfred
Time (UTC)Wind (kt)
2017-02-15T06:00:00Z15 kt
2017-02-15T09:00:00Zn/a
2017-02-15T12:00:00Z15 kt
2017-02-15T15:00:00Zn/a
2017-02-15T18:00:00Z15 kt
2017-02-15T21:00:00Zn/a
2017-02-16T00:00:00Z25 kt
2017-02-16T03:00:00Z28 kt
2017-02-16T06:00:00Z25 kt
2017-02-16T09:00:00Z30 kt
2017-02-16T12:00:00Z30 kt
2017-02-16T15:00:00Z33 kt
2017-02-16T18:00:00Z35 kt
2017-02-16T21:00:00Z35 kt
2017-02-17T00:00:00Z30 kt
2017-02-17T03:00:00Z33 kt
2017-02-17T06:00:00Z25 kt
2017-02-17T09:00:00Z28 kt
2017-02-17T12:00:00Z25 kt
2017-02-17T15:00:00Z23 kt
2017-02-17T18:00:00Z25 kt
2017-02-17T21:00:00Z20 kt
2017-02-18T00:00:00Z20 kt
2017-02-18T03:00:00Z20 kt
2017-02-18T06:00:00Z20 kt
2017-02-18T09:00:00Z20 kt
2017-02-18T12:00:00Z25 kt
2017-02-18T15:00:00Z20 kt
2017-02-18T18:00:00Z25 kt
2017-02-18T21:00:00Z23 kt
2017-02-19T00:00:00Z30 kt
2017-02-19T03:00:00Z28 kt
2017-02-19T06:00:00Z35 kt
2017-02-19T09:00:00Z33 kt
2017-02-19T12:00:00Z40 kt
2017-02-19T15:00:00Z38 kt
2017-02-19T18:00:00Z40 kt
2017-02-19T21:00:00Z45 kt
2017-02-19T22:00:00Z50 kt
2017-02-19T23:00:00Z50 kt
2017-02-20T00:00:00Z50 kt
2017-02-20T03:00:00Z50 kt
2017-02-20T06:00:00Z50 kt
2017-02-20T09:00:00Z40 kt
2017-02-20T12:00:00Z35 kt
2017-02-20T15:00:00Z38 kt
2017-02-20T18:00:00Z30 kt
2017-02-20T21:00:00Z35 kt
2017-02-21T00:00:00Z30 kt
2017-02-21T03:00:00Z28 kt
2017-02-21T06:00:00Z30 kt
2017-02-21T09:00:00Zn/a
2017-02-21T12:00:00Z30 kt
2017-02-21T15:00:00Zn/a
2017-02-21T18:00:00Z30 kt
2017-02-21T21:00:00Zn/a
2017-02-22T00:00:00Z25 kt
2017-02-22T03:00:00Zn/a
2017-02-22T06:00:00Z25 kt
2017-02-22T09:00:00Zn/a
2017-02-22T12:00:00Z25 kt

Pressure

hPa, six hourly
Central pressure of Alfred Central pressure in hectopascals every six hours, falling to 985 hPa at the lowest. 980 1035 1090 1145 1200 02-1502-1602-1702-1802-1902-2002-2102-22
Central pressure in hectopascals every six hours, falling to 985 hPa at the lowest.
Central pressure of Alfred
Time (UTC)Pressure (hPa)
2017-02-15T06:00:00Z1002 hPa
2017-02-15T09:00:00Zn/a
2017-02-15T12:00:00Z1003 hPa
2017-02-15T15:00:00Zn/a
2017-02-15T18:00:00Z1002 hPa
2017-02-15T21:00:00Zn/a
2017-02-16T00:00:00Z1002 hPa
2017-02-16T03:00:00Z1002 hPa
2017-02-16T06:00:00Z1001 hPa
2017-02-16T09:00:00Z1000 hPa
2017-02-16T12:00:00Z999 hPa
2017-02-16T15:00:00Z998 hPa
2017-02-16T18:00:00Z994 hPa
2017-02-16T21:00:00Z996 hPa
2017-02-17T00:00:00Z996 hPa
2017-02-17T03:00:00Z999 hPa
2017-02-17T06:00:00Z999 hPa
2017-02-17T09:00:00Z1003 hPa
2017-02-17T12:00:00Z1002 hPa
2017-02-17T15:00:00Z1005 hPa
2017-02-17T18:00:00Z1002 hPa
2017-02-17T21:00:00Z1005 hPa
2017-02-18T00:00:00Z1004 hPa
2017-02-18T03:00:00Z1005 hPa
2017-02-18T06:00:00Z1001 hPa
2017-02-18T09:00:00Z1005 hPa
2017-02-18T12:00:00Z1003 hPa
2017-02-18T15:00:00Z1005 hPa
2017-02-18T18:00:00Z1001 hPa
2017-02-18T21:00:00Z1005 hPa
2017-02-19T00:00:00Z1000 hPa
2017-02-19T03:00:00Z1002 hPa
2017-02-19T06:00:00Z996 hPa
2017-02-19T09:00:00Z998 hPa
2017-02-19T12:00:00Z995 hPa
2017-02-19T15:00:00Z995 hPa
2017-02-19T18:00:00Z993 hPa
2017-02-19T21:00:00Z990 hPa
2017-02-19T22:00:00Z987 hPa
2017-02-19T23:00:00Z987 hPa
2017-02-20T00:00:00Z987 hPa
2017-02-20T03:00:00Z985 hPa
2017-02-20T06:00:00Z987 hPa
2017-02-20T09:00:00Z991 hPa
2017-02-20T12:00:00Z996 hPa
2017-02-20T15:00:00Z995 hPa
2017-02-20T18:00:00Z999 hPa
2017-02-20T21:00:00Z996 hPa
2017-02-21T00:00:00Z1003 hPa
2017-02-21T03:00:00Z1002 hPa
2017-02-21T06:00:00Z1004 hPa
2017-02-21T09:00:00Zn/a
2017-02-21T12:00:00Z1004 hPa
2017-02-21T15:00:00Zn/a
2017-02-21T18:00:00Z1004 hPa
2017-02-21T21:00:00Zn/a
2017-02-22T00:00:00Z1006 hPa
2017-02-22T03:00:00Zn/a
2017-02-22T06:00:00Z1005 hPa
2017-02-22T09:00:00Zn/a
2017-02-22T12:00:00Z1007 hPa

ACE Compared With the 2017 Season

Accumulated cyclone energy of named storms in 2017
Irma (North Atlantic)64.9 ACE
Maria (North Atlantic)44.8 ACE
Jose (North Atlantic)43.3 ACE
Noru (Western North Pacific)34.4 ACE
Fernanda (Eastern North Pacific)28.4 ACE
Lee (North Atlantic)17.9 ACE
Donna (South Pacific)16.8 ACE
Talim (Western North Pacific)16.4 ACE
Hilary (Eastern North Pacific)14.6 ACE
Ophelia (North Atlantic)14.5 ACE
Lan (Western North Pacific)14.5 ACE
Harvey (North Atlantic)11.4 ACE
Irwin (Eastern North Pacific)11.1 ACE
Kenneth (Eastern North Pacific)10.3 ACE
Ernie (South-West Indian)10.0 ACE
Enawo (South-West Indian)9.8 ACE
Banyan (Western North Pacific)9.5 ACE
Ockhi (North Indian)9.3 ACE
Eugene (Eastern North Pacific)8.1 ACE
Gert (North Atlantic)7.8 ACE
Sanvu (Western North Pacific)7.1 ACE
Debbie (South Pacific)6.9 ACE
Nesat (Western North Pacific)6.4 ACE
Carlos (South-West Indian)6.4 ACE
Ella (South Pacific)6.2 ACE
Katia (North Atlantic)6.1 ACE
Tembin (Western North Pacific)5.5 ACE
Cook (South Pacific)5.4 ACE
Greg (Eastern North Pacific)5.2 ACE
Dora (Eastern North Pacific)5.0 ACE
Doksuri (Western North Pacific)4.8 ACE
Saola (Western North Pacific)4.7 ACE
Norma (Eastern North Pacific)4.7 ACE
Otis (Eastern North Pacific)4.6 ACE
Nate (North Atlantic)4.1 ACE
Khanun (Western North Pacific)4.0 ACE
Dineo (South-West Indian)3.8 ACE
Franklin (North Atlantic)3.7 ACE
Hato (Western North Pacific)3.7 ACE
Damrey (Western North Pacific)3.6 ACE
Bransby (South-West Indian)3.5 ACE
Frances (South Pacific)3.4 ACE
Nanmadol (Western North Pacific)2.8 ACE
Kulap (Western North Pacific)2.7 ACE
Lidia (Eastern North Pacific)2.6 ACE
Caleb (South-West Indian)2.5 ACE
Yvette (South-West Indian)2.4 ACE
Mawar (Western North Pacific)2.3 ACE
Nalgae (Western North Pacific)2.3 ACE
Max (Eastern North Pacific)2.2 ACE
Pakhar (Western North Pacific)2.2 ACE
Kai-Tak (Western North Pacific)2.1 ACE
Abela (South-West Indian)2.1 ACE
Mora (North Indian)1.9 ACE
Cindy (North Atlantic)1.8 ACE
Talas (Western North Pacific)1.7 ACE
Rina (North Atlantic)1.7 ACE
Haitang (Western North Pacific)1.5 ACE
Sonca (Western North Pacific)1.5 ACE
Merbok (Western North Pacific)1.5 ACE
Haikui (Western North Pacific)1.2 ACE
Alfred (this storm)1.2 ACE
Pilar (Eastern North Pacific)1.1 ACE
Blanche (South Pacific)1.0 ACE
Muifa (Western North Pacific)0.9 ACE
Arlene (North Atlantic)0.8 ACE
Don (North Atlantic)0.8 ACE
Maarutha (North Indian)0.8 ACE
Kirogi (Western North Pacific)0.7 ACE
Greg (South-West Indian)0.7 ACE
Bart (South Pacific)0.7 ACE
Emily (North Atlantic)0.6 ACE
Fernando (South-West Indian)0.6 ACE
Selma (Eastern North Pacific)0.6 ACE
Beatriz (Eastern North Pacific)0.6 ACE
Adrian (Eastern North Pacific)0.5 ACE
Bret (North Atlantic)0.5 ACE
Guchol (Western North Pacific)0.5 ACE
Jova (Eastern North Pacific)0.5 ACE
Roke (Western North Pacific)0.5 ACE
Ramon (Eastern North Pacific)0.4 ACE
Calvin (Eastern North Pacific)0.3 ACE
Philippe (North Atlantic)0.1 ACE

ACE is the sum of the squares of six hourly wind speeds, in units of 10,000 knots squared, counted while winds are at or above 34 knots.

Landfalls

Landfalls of Alfred 2017
DatePlacePositionWind
2017-02-15Open coast, place not named in the data-17.0, 137.115 kt (28 km/h, 17 mph)
2017-02-17Open coast, place not named in the data-16.8, 138.530 kt (56 km/h, 35 mph)
2017-02-21Open coast, place not named in the data-16.8, 137.930 kt (56 km/h, 35 mph)
2017-02-22Open coast, place not named in the data-16.8, 138.325 kt (46 km/h, 29 mph)

Which Agency's Numbers

Wind and pressure from bom,jtwc_sh,usa as carried in NOAA IBTrACS. Agencies average winds over different periods.

Related Headlines

Third party news, headline and link only

Download the Data

Sources: Source: International Best Track Archive for Climate Stewardship (IBTrACS) v04r01, NOAA National Centers for Environmental Information, doi:10.25921/82ty-9e16. Some agency values come from third parties such as JMA, IMD and BoM. (NOAA NCEI terms (citation requested)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17. Storm records are best tracks and can be revised by the agencies.