Typhoon Bolaven (2012)

Basin

Western Pacific

Dates

August 18, 2012 to September 1, 2012

Peak strength

Category 4, 125 kt (144 mph)

Lowest pressure

929 mb (27.43 inHg)

Landfall

Yes

Accumulated cyclone energy

28.1

Tropical-storm-force wind reached

235 nmi (435 km, 270 mi) from the center at its widest

Hurricane-force wind reached

70 nmi (130 km, 81 mi) from the center at its widest

Eyewall radius at its peak

20 nmi (37 km, 23 mi)

Overall size

245 nmi (454 km, 282 mi) to the outermost closed isobar

Peak gust in the best track

150 kt (173 mph)

Fastest the center moved

60 kt (69 mph)

Identifier

WP162012

Radar at RODN as it neared land, Aug 26, 12:00 UTC

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

• Unnamed tropical depressionWestern Pacific · 2012Tropical Depression25 kt · 1004 mb
• Tropical Storm PakharWestern Pacific · 2012Tropical Storm60 kt · 978 mb
• Typhoon SanvuWestern Pacific · 2012Cat 180 kt · 963 mb
• Typhoon MawarWestern Pacific · 2012Cat 3105 kt · 944 mb
• Super Typhoon GucholWestern Pacific · 2012Cat 4130 kt · 926 mb
• Tropical Storm TalimWestern Pacific · 2012Tropical Storm50 kt · 985 mb
• Tropical Storm DoksuriWestern Pacific · 2012Tropical Storm40 kt · 993 mb
• Tropical Storm KhanunWestern Pacific · 2012Tropical Storm55 kt · 982 mb
• Typhoon VicenteWestern Pacific · 2012Cat 4115 kt · 937 mb
• Typhoon SaolaWestern Pacific · 2012Cat 290 kt · 956 mb
• Typhoon DamreyWestern Pacific · 2012Cat 180 kt · 963 mb
• Typhoon HaikuiWestern Pacific · 2012Cat 165 kt · 974 mb
• Tropical Storm KirogiWestern Pacific · 2012Tropical Storm45 kt · 989 mb
• Typhoon Kai-TakWestern Pacific · 2012Cat 165 kt · 974 mb
• Typhoon TembinWestern Pacific · 2012Cat 4120 kt · 933 mb
• Super Typhoon SanbaWestern Pacific · 2012Cat 5155 kt · 907 mb
• Super Typhoon JelawatWestern Pacific · 2012Cat 5140 kt · 918 mb
• Tropical Storm EwiniarWestern Pacific · 2012Tropical Storm55 kt · 982 mb
• Tropical Storm GaemiWestern Pacific · 2012Tropical Storm55 kt · 982 mb
• Tropical Storm MaliksiWestern Pacific · 2012Tropical Storm45 kt · 960 mb
• Typhoon PrapiroonWestern Pacific · 2012Cat 3105 kt · 944 mb
• Tropical Storm MariaWestern Pacific · 2012Tropical Storm55 kt · 982 mb
• Typhoon Son-TinhWestern Pacific · 2012Cat 3105 kt · 944 mb
• Unnamed tropical depressionWestern Pacific · 2012Tropical Depression25 kt · 1004 mb
• Super Typhoon BophaWestern Pacific · 2012Cat 5150 kt · 911 mb
• Tropical Storm WukongWestern Pacific · 2012Tropical Storm35 kt · 996 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.

• Wikipedia article: Typhoon Bolaven