Tropical Storm Isobel (1985)

Basin

South Indian

Dates

February 11, 1985 to February 22, 1985

Peak strength

Tropical Storm, 50 kt (58 mph)

Lowest pressure

960 mb (28.35 inHg)

Landfall

No; closest approach 430 km (267 mi)

Accumulated cyclone energy

5.3

Identifier

SH221985

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 stormSouth Indian · 1985Tropical Storm45 kt
• Tropical Storm AnetySouth Indian · 1985Tropical Storm36 kt · 1003 mb
• Tropical Storm BobalahySouth Indian · 1985Tropical Storm55 kt · 984 mb
• Tropical Storm EmmaSouth Indian · 1985Tropical Storm45 kt · 967 mb
• Unnamed tropical stormSouth Indian · 1985Tropical Storm35 kt
• Cyclone FrankSouth Indian · 1985Cat 175 kt · 950 mb
• Cyclone CelestinaSouth Indian · 1985Cat 165 kt · 976 mb
• Unnamed tropical stormSouth Indian · 1985Tropical Storm35 kt
• Cyclone DitraSouth Indian · 1985Cat 170 kt · 966 mb
• Tropical Storm GertieSouth Indian · 1985Tropical Storm55 kt · 973 mb
• Tropical Storm EsiteraSouth Indian · 1985Tropical Storm50 kt · 984 mb
• Tropical Storm EsiteraSouth Indian · 1985Tropical Storm36 kt · 991 mb
• Tropical Storm HubertSouth Indian · 1985Tropical Storm55 kt · 954 mb
• Cyclone GerimenaSouth Indian · 1985Cat 165 kt · 984 mb
• Tropical Storm FeliksaSouth Indian · 1985Tropical Storm50 kt · 976 mb
• Cyclone JacobSouth Indian · 1985Cat 175 kt · 950 mb
• Unnamed tropical stormSouth Indian · 1985Tropical Storm35 kt
• Cyclone KirstySouth Indian · 1985Cat 4115 kt · 920 mb
• Tropical Storm LindsaySouth Indian · 1985Tropical Storm55 kt · 950 mb
• Cyclone HelisaoninaSouth Indian · 1985Cat 3110 kt · 941 mb
• Cyclone MargotSouth Indian · 1985Cat 170 kt · 942 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.