2005 Western North Pacific Ocean Tropical Cyclones

Tropical Cyclone Cyclogenesis Date Cyclolysis Date Saffir-Simpson Category Maximum 6-hr Sustained Wind (kt) Maximum 6-hr Wind Gust (kt) Accumulated Cyclone Energy (ACE*) Index (kt2) Landfall Information (date, location and sustained winds)
Kulap 1/13/05 1/18/05 TS 60 75 4.1175 x 104
02W 1/13/05 1/15/05 TS 40 N/A 0.4425 x 104
Roke 3/14/05 3/17/05 Cat 1 65 80 3.865 x 104 3/16/06 - Philippines (65 kt)
Sonca 4/20/05 4/26/05 Cat 4 115 140 13.125 x 104
Nesat 5/30/05 6/10/05 Cat 4 125 150 33.8925 x 104
Haitang 7/11/05 7/19/05 Cat 4 140 170 26.975 x 104 7/18/05 - Taiwan (105 kt)
7/19/05 - China (65 kt)
Nalgae 7/20/05 7/23/05 TS 45 55 2.3275 x 104
Banyan 7/21/05 7/27/05 TS 60 75 4.36 x 104 7/26/05 - Japan (40 kt)
Washi 7/28/05 7/31/05 TS 60 75 1.22 x 104 7/30/05 - Hainan Is. (35 kt)
7/31/05 - Vietnam (45 kt)
Matsa 7/31/05 8/6/05 Cat 2 90 110 11.09 x 104 8/6/05 - China (75 kt)
Sanvu 8/10/05 8/13/05 Cat 1 65 80 2.2625 x 104 8/13/05 - China (65 kt)
Mawar 8/19/05 8/27/05 Cat 4 130 160 24.9525 x 104 8/25/05 - Japan (90 kt)
Guchol 8/20/05 8/25/05 TS 60 75 4.435 x 104
Talim 8/26/05 9/1/05 Cat 4 125 150 18.6425 x 104 8/31/05 - Taiwan (105 kt)
9/1/05 - China (45 kt)
Nabi 8/29/05 9/6/05 Cat 5 140 170 35.95 x 104 9/6/05 - southern Japan (90 kt)
Khanun 9/5/05 9/11/05 Cat 4 115 140 13.2125 x 104 9/11/05 - China (90 kt)
Vicente 9/16/05 9/18/05 TS 40 50 0.81 x 104 9/18/05 - China (40 kt)
Saola 9/20/05 9/26/05 Cat 3 100 125 12.1975 x 104
Damrey 9/20/05 9/27/05 Cat 2 90 110 9.07 x 104 9/25/05 - Hainan Is. (85 kt)
9/26/05 - Vietnam (50 kt)
Longwang 9/25/05 10/2/05 Cat 4 130 160 30.37 x 104 10/1/05 - Taiwan (115 kt)
10/2/05 - China (80 kt)
Kirogi 10/10/05 10/19/05 Cat 4 125 150 30.275 x 104
Kai-Tak 10/29/05 11/2/05 Cat 2 90 110 8.34 x 104 11/2/05 - China (35 kt)
Tembin 11/7/05 11/11/05 TS 45 55 2.34 x 104 11/10/05 - Luzon, Philippines (45 kt)
Bolaven 11/13/05 11/20/05 Cat 1 75 90 7.1125 x 104 11/20/05 - Luzon, Philippines (40 kt)
25W 12/18/05 12/20/05 TS 40 50 0.65 x 104

Preliminary 2005 West North Pacific Ocean ACE Index = 324.7725 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