Tropical Depression Helene (1969)

Basin

South Indian

Dates

March 19, 1969 to March 28, 1969

Peak strength

Tropical Depression

Landfall

No; closest approach 137 km (85 mi)

Accumulated cyclone energy

0.0

Identifier

SH291969

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 AnnieSouth Indian · 1969Tropical Depression
• Tropical Depression BettySouth Indian · 1969Tropical Depression
• Tropical Depression AmberSouth Indian · 1969Tropical Depression975 mb
• Tropical Depression BeatieSouth Indian · 1969Tropical Depression1001 mb
• Tropical Depression Berthe:BettinaSouth Indian · 1969Tropical Depression
• Tropical Depression CheriSouth Indian · 1969Tropical Depression30 kt · 995 mb
• Tropical Depression ClaireSouth Indian · 1969Tropical Depression
• Unnamed tropical depressionSouth Indian · 1969Tropical Depression
• Tropical Depression DanySouth Indian · 1969Tropical Depression
• Tropical Depression EveSouth Indian · 1969Tropical Depression
• Tropical Depression Enid:FannySouth Indian · 1969Tropical Depression
• Tropical Depression GilletteSouth Indian · 1969Tropical Depression
• Tropical Depression GladysSouth Indian · 1969Tropical Depression987 mb
• Tropical Storm LeonieSouth Indian · 1969Tropical Storm40 kt · 990 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.