Tropical Storm Sonca (2017)

Basin

Western Pacific

Dates

July 20, 2017 to July 29, 2017

Peak strength

Tropical Storm, 45 kt (52 mph)

Lowest pressure

989 mb (29.21 inHg)

Landfall

Yes

Accumulated cyclone energy

1.9

Tropical-storm-force wind reached

60 nmi (111 km, 69 mi) from the center at its widest

Eyewall radius at its peak

20 nmi (37 km, 23 mi)

Overall size

160 nmi (296 km, 184 mi) to the outermost closed isobar

Fastest the center moved

12 kt (14 mph)

Identifier

WP082017

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

• Unnamed tropical depressionWestern Pacific · 2017Tropical Depression30 kt · 1000 mb
• Unnamed tropical depressionWestern Pacific · 2017Tropical Depression25 kt · 1004 mb
• Tropical Storm MuifaWestern Pacific · 2017Tropical Storm40 kt · 993 mb
• Tropical Storm MerbokWestern Pacific · 2017Tropical Storm45 kt · 989 mb
• Typhoon NanmadolWestern Pacific · 2017Cat 165 kt · 974 mb
• Tropical Storm TalasWestern Pacific · 2017Tropical Storm50 kt · 985 mb
• Super Typhoon NoruWestern Pacific · 2017Cat 4135 kt · 922 mb
• Tropical Storm KulapWestern Pacific · 2017Tropical Storm50 kt · 985 mb
• Tropical Storm RokeWestern Pacific · 2017Tropical Storm35 kt · 996 mb
• Typhoon NesatWestern Pacific · 2017Cat 290 kt · 956 mb
• Tropical Storm HaitangWestern Pacific · 2017Tropical Storm40 kt · 992 mb
• Tropical Storm NalgaeWestern Pacific · 2017Tropical Storm60 kt · 978 mb
• Typhoon BanyanWestern Pacific · 2017Cat 3110 kt · 941 mb
• Typhoon HatoWestern Pacific · 2017 · 26 deathsCat 3100 kt · 948 mb
• Tropical Storm PakharWestern Pacific · 2017Tropical Storm60 kt · 983 mb
• Typhoon SanvuWestern Pacific · 2017Cat 290 kt · 953 mb
• Tropical Storm MawarWestern Pacific · 2017Tropical Storm45 kt · 989 mb
• Tropical Depression GucholWestern Pacific · 2017Tropical Depression30 kt · 1000 mb
• Typhoon TalimWestern Pacific · 2017Cat 4120 kt · 933 mb
• Typhoon DoksuriWestern Pacific · 2017Cat 295 kt · 960 mb
• Unnamed tropical depressionWestern Pacific · 2017Tropical Depression30 kt · 1000 mb
• Unnamed tropical depressionWestern Pacific · 2017Tropical Depression30 kt · 999 mb
• Typhoon KhanunWestern Pacific · 2017Cat 290 kt · 956 mb
• Super Typhoon LanWestern Pacific · 2017Cat 4135 kt · 922 mb
• Unnamed tropical depressionWestern Pacific · 2017Tropical Depression25 kt · 1002 mb
• Typhoon SaolaWestern Pacific · 2017Cat 165 kt · 974 mb
• Typhoon DamreyWestern Pacific · 2017Cat 290 kt · 967 mb
• Unnamed tropical depressionWestern Pacific · 2017Tropical Depression
• Unnamed tropical depressionWestern Pacific · 2017Tropical Depression25 kt · 1004 mb
• Tropical Storm HaikuiWestern Pacific · 2017Tropical Storm45 kt · 989 mb
• Tropical Storm KirogiWestern Pacific · 2017Tropical Storm40 kt · 993 mb
• Tropical Storm Kai-TakWestern Pacific · 2017Tropical Storm50 kt · 985 mb
• Typhoon TembinWestern Pacific · 2017Cat 285 kt · 959 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: Tropical Storm Sonca