Cyclone Bianca (2011)

Basin

South Indian

Dates

January 21, 2011 to January 30, 2011

Peak strength

Category 2, 95 kt (109 mph)

Lowest pressure

952 mb (28.11 inHg)

Landfall

Yes

Accumulated cyclone energy

8.8

Identifier

SH102011

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

• Unnamed tropical stormSouth Indian · 2011Tropical Storm35 kt · 996 mb
• Tropical Storm AnggrekSouth Indian · 2011Tropical Storm55 kt · 982 mb
• Cyclone AbeleSouth Indian · 2011Cat 180 kt · 963 mb
• Unnamed tropical depressionSouth Indian · 2011Tropical Depression30 kt · 991 mb
• Unnamed tropical depressionSouth Indian · 2011Tropical Depression30 kt · 993 mb
• Tropical Storm VinceSouth Indian · 2011Tropical Storm45 kt · 989 mb
• Cyclone BingizaSouth Indian · 2011Cat 3100 kt · 948 mb
• Unnamed tropical stormSouth Indian · 2011Tropical Storm35 kt · 996 mb
• Cyclone CarlosSouth Indian · 2011Cat 165 kt · 974 mb
• Cyclone DianneSouth Indian · 2011Cat 180 kt · 963 mb
• Tropical Storm CheronoSouth Indian · 2011Tropical Storm45 kt · 989 mb
• Unnamed tropical stormSouth Indian · 2011Tropical Storm35 kt · 996 mb
• Unnamed tropical stormSouth Indian · 2011Tropical Storm50 kt · 985 mb
• Tropical Storm ErrolSouth Indian · 2011Tropical 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.