Typhoon Koppu (2003)

Basin

Western Pacific

Dates

September 23, 2003 to October 3, 2003

Peak strength

Category 2, 90 kt (104 mph)

Lowest pressure

954 mb (28.17 inHg)

Landfall

No; closest approach 448 km (278 mi)

Accumulated cyclone energy

6.7

Identifier

WP172003

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

• Super Typhoon KujiraWestern Pacific · 2003Cat 4135 kt · 904 mb
• Unnamed tropical depressionWestern Pacific · 2003Tropical Depression30 kt · 1000 mb
• Typhoon Chan-HomWestern Pacific · 2003Cat 4115 kt · 927 mb
• Tropical Storm LinfaWestern Pacific · 2003Tropical Storm55 kt · 982 mb
• Tropical Storm NangkaWestern Pacific · 2003Tropical Storm45 kt · 991 mb
• Typhoon SoudelorWestern Pacific · 2003Cat 4115 kt · 927 mb
• Typhoon KoniWestern Pacific · 2003Cat 165 kt · 976 mb
• Super Typhoon ImbudoWestern Pacific · 2003Cat 4130 kt · 910 mb
• Typhoon MorakotWestern Pacific · 2003Cat 165 kt · 976 mb
• Typhoon EtauWestern Pacific · 2003Cat 3110 kt · 933 mb
• Typhoon KrovanhWestern Pacific · 2003Cat 290 kt · 954 mb
• Tropical Storm VamcoWestern Pacific · 2003Tropical Storm35 kt · 997 mb
• Unnamed tropical depressionWestern Pacific · 2003Tropical Depression
• Typhoon DujuanWestern Pacific · 2003Cat 4125 kt · 916 mb
• Super Typhoon MaemiWestern Pacific · 2003Cat 5150 kt · 885 mb
• Typhoon Choi-WanWestern Pacific · 2003Cat 3100 kt · 944 mb
• Unnamed tropical depressionWestern Pacific · 2003Tropical Depression25 kt · 1002 mb
• Unnamed tropical depressionWestern Pacific · 2003Tropical Depression30 kt · 1000 mb
• Typhoon KetsanaWestern Pacific · 2003Cat 4125 kt · 916 mb
• Super Typhoon ParmaWestern Pacific · 2003Cat 4130 kt · 910 mb
• Unnamed tropical depressionWestern Pacific · 2003Tropical Depression25 kt · 1002 mb
• Unnamed tropical stormWestern Pacific · 2003Tropical Storm35 kt · 997 mb
• Typhoon MelorWestern Pacific · 2003Cat 175 kt · 967 mb
• Typhoon NepartakWestern Pacific · 2003Cat 175 kt · 967 mb
• Super Typhoon LupitWestern Pacific · 2003Cat 5145 kt · 892 mb
• Unnamed tropical stormWestern Pacific · 2003Tropical Storm35 kt · 997 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.