Tropical Storm Rosie (1971)

Basin

South Pacific

Dates

December 30, 1970 to January 6, 1971

Peak strength

Tropical Storm, 55 kt (63 mph), ten-minute wind

Lowest pressure

980 mb (28.94 inHg)

Landfall

Yes

Accumulated cyclone energy

2.0

Identifier

SH071971

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.

• Tropical Depression Beverley:EvaSouth Pacific · 1971Tropical Depression970 mb
• Tropical Storm PriscillaSouth Pacific · 1971Tropical Storm40 kt · 990 mb
• Unnamed tropical depressionSouth Pacific · 1971Tropical Depression
• Tropical Storm AggieSouth Pacific · 1971Tropical Storm45 kt · 984 mb
• Tropical Storm DoraSouth Pacific · 1971Tropical Storm60 kt · 990 mb
• Cyclone GertieSouth Pacific · 1971Cat 165 kt · 983 mb
• Tropical Storm IdaSouth Pacific · 1971Tropical Storm45 kt · 980 mb
• Tropical Storm FionaSouth Pacific · 1971Tropical Storm50 kt · 960 mb
• Tropical Storm LenaSouth Pacific · 1971Tropical Storm55 kt · 980 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. This storm’s winds are ten-minute averages from its regional agency. They read about 12 percent lower than the one-minute winds US agencies use, so a Saffir-Simpson category is not given for it.

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.