Cyclone Giovanna (2012)

Basin

South Indian

Dates

February 7, 2012 to February 22, 2012

Peak strength

Category 4, 120 kt (138 mph)

Lowest pressure

933 mb (27.55 inHg)

Landfall

Yes

Accumulated cyclone energy

25.7

Tropical-storm-force wind reached

220 nmi (407 km, 253 mi) from the center at its widest

Hurricane-force wind reached

55 nmi (102 km, 63 mi) from the center at its widest

Eyewall radius at its peak

30 nmi (56 km, 35 mi)

Overall size

200 nmi (370 km, 230 mi) to the outermost closed isobar

Fastest the center moved

20 kt (23 mph)

Identifier

SH122012

No source this site reads carries a casualty or damage figure for this storm.

• Cyclone AlengaSouth Indian · 2012Cat 295 kt · 952 mb
• Unnamed tropical stormSouth Indian · 2012Tropical Storm35 kt · 996 mb
• Tropical Storm GrantSouth Indian · 2012Tropical Storm60 kt · 978 mb
• Cyclone BenildeSouth Indian · 2012Cat 290 kt · 956 mb
• Tropical Storm ChandaSouth Indian · 2012Tropical Storm35 kt · 996 mb
• Cyclone HeidiSouth Indian · 2012Cat 165 kt · 974 mb
• Tropical Storm DandoSouth Indian · 2012Tropical Storm45 kt · 992 mb
• Cyclone EthelSouth Indian · 2012Cat 170 kt · 970 mb
• Cyclone FunsoSouth Indian · 2012Cat 4115 kt · 937 mb
• Cyclone IggySouth Indian · 2012Cat 170 kt · 970 mb
• Tropical Storm HilwaSouth Indian · 2012Tropical Storm42 kt · 993 mb
• Tropical Storm IrinaSouth Indian · 2012Tropical Storm60 kt · 978 mb
• Unnamed tropical stormSouth Indian · 2012Tropical Storm35 kt · 996 mb
• Cyclone Joni:KojiSouth Indian · 2012Cat 175 kt · 967 mb
• Cyclone LuaSouth Indian · 2012Cat 295 kt · 952 mb
• Unnamed tropical depressionSouth Indian · 2012Tropical Depression30 kt · 993 mb
• Unnamed tropical depressionSouth Indian · 2012Tropical Depression30 kt · 1000 mb
• Tropical Storm KuenaSouth Indian · 2012Tropical Storm55 kt · 982 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.

• Wikipedia article: Cyclone Giovanna