Cyclone Alistair (2001)

Basin

South Pacific

Dates

April 15, 2001 to April 24, 2001

Peak strength

Category 1, 65 kt (75 mph)

Lowest pressure

975 mb (28.79 inHg)

Landfall

Yes

Accumulated cyclone energy

5.0

Identifier

SH202001

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

• Cyclone SamSouth Pacific · 2001Cat 3110 kt · 935 mb
• Unnamed tropical depressionSouth Pacific · 2001Tropical Depression
• Unnamed tropical stormSouth Pacific · 2001Tropical Storm40 kt · 996 mb
• Tropical Storm WinsomeSouth Pacific · 2001Tropical Storm40 kt · 981 mb
• Tropical Storm WylvaSouth Pacific · 2001Tropical Storm40 kt · 988 mb
• Unnamed tropical stormSouth Pacific · 2001Tropical Storm35 kt · 997 mb
• Tropical Storm OmaSouth Pacific · 2001Tropical Storm50 kt · 980 mb
• Tropical Storm AbigailSouth Pacific · 2001Tropical Storm60 kt · 970 mb
• Cyclone PaulaSouth Pacific · 2001Cat 3105 kt · 930 mb
• Tropical Storm RitaSouth Pacific · 2001Tropical Storm40 kt · 986 mb
• Cyclone SoseSouth Pacific · 2001Cat 170 kt · 975 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.