Cyclone Claudette:Viola (1980)

Basin

South Indian

Dates

December 9, 1979 to December 28, 1979

Peak strength

Category 3, 110 kt (127 mph)

Lowest pressure

930 mb (27.46 inHg)

Landfall

Yes

Accumulated cyclone energy

36.2

Identifier

SH021980

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 TonySouth Indian · 1980Tropical Depression
• Cyclone AlbineSouth Indian · 1980Cat 3100 kt
• Tropical Storm BereniceSouth Indian · 1980Tropical Storm35 kt
• Tropical Storm Danitza:WilfSouth Indian · 1980Tropical Storm55 kt · 973 mb
• Tropical Depression DanitzaSouth Indian · 1980Tropical Depression29 kt · 1000 mb
• Cyclone AmySouth Indian · 1980Cat 3100 kt · 915 mb
• Tropical Depression EglantineSouth Indian · 1980Tropical Depression25 kt · 1005 mb
• Tropical Depression FloreSouth Indian · 1980Tropical Depression20 kt · 1005 mb
• Unnamed tropical depressionSouth Indian · 1980Tropical Depression29 kt · 1000 mb
• Unnamed tropical depressionSouth Indian · 1980Tropical Depression29 kt · 1000 mb
• Cyclone HyacintheSouth Indian · 1980Cat 170 kt
• Cyclone BrianSouth Indian · 1980Cat 290 kt · 930 mb
• Tropical Storm ClaraSouth Indian · 1980Tropical Storm60 kt · 980 mb
• Tropical Depression IvanneSouth Indian · 1980Tropical Depression29 kt · 1000 mb
• Cyclone DeanSouth Indian · 1980Cat 3110 kt · 930 mb
• Cyclone JacintheSouth Indian · 1980Cat 3100 kt
• Cyclone EnidSouth Indian · 1980Cat 3110 kt · 930 mb
• Cyclone FredSouth Indian · 1980Cat 295 kt · 930 mb
• Tropical Storm KoliaSouth Indian · 1980Tropical Storm60 kt
• Cyclone LaureSouth Indian · 1980Cat 3100 kt
• Cyclone Doris:GloriaSouth Indian · 1980Cat 3110 kt · 955 mb
• Unnamed tropical stormSouth Indian · 1980Tropical Storm40 kt
• Unnamed tropical stormSouth Indian · 1980Tropical Storm45 kt
• Unnamed tropical depressionSouth Indian · 1980Tropical Depression

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.