Super Typhoon Helen (1958)

Basin

Western Pacific

Dates

September 8, 1958 to September 22, 1958

Peak strength

Category 5, 150 kt (173 mph)

Lowest pressure

920 mb (27.17 inHg)

Landfall

Yes

Accumulated cyclone energy

35.2

Identifier

WP141958

No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.

• Super Typhoon OpheliaWestern Pacific · 1958Cat 5140 kt · 940 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression995 mb
• Super Typhoon PhyllisWestern Pacific · 1958Cat 5160 kt · 940 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression990 mb
• Typhoon RitaWestern Pacific · 1958Cat 175 kt · 985 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression998 mb
• Typhoon SusanWestern Pacific · 1958Cat 3100 kt · 985 mb
• Typhoon TessWestern Pacific · 1958Cat 175 kt · 1000 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Typhoon ViolaWestern Pacific · 1958Cat 3100 kt · 965 mb
• Super Typhoon WinnieWestern Pacific · 1958Cat 5150 kt · 925 mb
• Tropical Storm BettyWestern Pacific · 1958Tropical Storm60 kt · 985 mb
• Super Typhoon AliceWestern Pacific · 1958 · 26 deathsCat 4130 kt · 925 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression992 mb
• Super Typhoon DorisWestern Pacific · 1958Cat 4130 kt · 935 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression995 mb
• Typhoon ElsieWestern Pacific · 1958Cat 175 kt · 965 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Typhoon FlossieWestern Pacific · 1958Cat 290 kt · 970 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression994 mb
• Super Typhoon GraceWestern Pacific · 1958Cat 5165 kt · 905 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression986 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Tropical Depression JuneWestern Pacific · 1958Tropical Depression990 mb
• Typhoon JuneWestern Pacific · 1958Cat 165 kt
• Tropical Depression JuneWestern Pacific · 1958Tropical Depression
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Super Typhoon IdaWestern Pacific · 1958Cat 5175 kt · 877 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression1000 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Typhoon KathyWestern Pacific · 1958Cat 3100 kt · 975 mb
• Typhoon LornaWestern Pacific · 1958Cat 3110 kt · 940 mb
• Typhoon MarieWestern Pacific · 1958Cat 4120 kt · 940 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Super Typhoon NancyWestern Pacific · 1958Cat 5140 kt · 920 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression
• Tropical Storm PamelaWestern Pacific · 1958Tropical Storm45 kt · 1000 mb
• Typhoon OlgaWestern Pacific · 1958Cat 4125 kt · 950 mb
• Unnamed tropical depressionWestern Pacific · 1958Tropical Depression985 mb

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.

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.