Unnamed tropical storm (1958)

Basin

South Pacific

Dates

March 11, 1958 to March 19, 1958

Peak strength

Tropical Storm, 35 kt (40 mph)

Lowest pressure

996 mb (29.41 inHg)

Landfall

No; closest approach 158 km (98 mi)

Accumulated cyclone energy

0.5

Identifier

SH221958

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.

• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression30 kt
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression
• Unnamed cycloneSouth Pacific · 1958Cat 175 kt
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression30 kt · 1004 mb
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression25 kt
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression994 mb
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression997 mb
• Unnamed cycloneSouth Pacific · 1958Cat 170 kt · 968 mb
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression998 mb
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression30 kt · 1000 mb
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression990 mb
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression998 mb
• Unnamed tropical depressionSouth Pacific · 1958Tropical Depression986 mb
• Unnamed tropical stormSouth Pacific · 1958Tropical Storm45 kt · 1006 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.