2005 South Pacific Basin Tropical Cyclones (East of 165°E)

Tropical Cyclone Cyclogenesis Date Cyclolysis Date Saffir-Simpson Category Maximum 6-hr Sustained Wind (kt) Maximum 6-hr Wind Gust (kt) Estimated Accumulated Cyclone Energy (ACE*) Index (kt2) Landfall Information (date, location and sustained winds)
08P 1/5/05 1/5/05 TS 35 N/A 0.3675 x 104
Kerry 1/5/05 1/12/05 Cat 2 90 110 10.7031 x 104 1/7/05 - Vanuatu (35 kt)
Meena 2/3/05 2/7/05 Cat 4 125 150 13.6919 x 104
Nancy 2/13/05 2/16/05 Cat 4 125 150 10.8347 x 104
19P 2/13/05 2/13/05 TS 35 N/A 0.1225 x 104
Olaf 2/13/05 2/20/05 Cat 5 145 175 31.2119 x 104 2/15-16/05 - Samoa, American Samoa and Cook Is. (140 kt)
Percy 2/25/05 3/4/05 Cat 5 140 170 33.4087 x 104 2/26/05 - Tokelau (95 kt)
2/28/05 - American Samoa and Cook Is. (130 kt)
Rae 3/6/05 3/6/05 TS 35 45 0.245 x 104

Preliminary 2005 South Pacific Ocean ACE Index = 100.5944 x 104 kt2

*The Accumulated Cyclone Energy (ACE) Index is calculated by summing the squares of the estimated 6-hourly maximum sustained wind speed in knots (Vmax2) for all periods in which the tropical cyclone is a tropical storm or greater intensity. For a complete description of the ACE Index see Bell et al. (2000), Bulletin of the American Meteorological Society (81) S1-S50.


The Saffir-Simpson Scale for Tropical Cyclones

Category Miles Per Hour (mph) Knots (kt) Kilometers Per Hour (km hr-1)
Tropical Storm (TS)
39-73 34-63 63-118
Cat 1
74-95 64-82 119-153
Cat 2
96-110 83-95 154-177
Cat 3
111-130 96-113 178-209
Cat 4
131-155 114-135 210-249
Cat 5
156 or greater 136 or greater 250 or greater