Typhoon Sonca (2011)
Typhoon Sonca reached Category 2 in the Western Pacific between September 13, 2011 and September 21, 2011, with a lowest pressure of 956 mb.
Track and intensity
The whole track of Typhoon Sonca, colored by strength, with the other storms of the 2011 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.
The storm
- Basin
- Western Pacific
- Dates
- September 13, 2011 to September 21, 2011
- Peak strength
- Category 2, 90 kt (104 mph)
- Lowest pressure
- 956 mb (28.23 inHg)
- Landfall
- No; closest approach 310 km (193 mi)
- Accumulated cyclone energy
- 8.1
- Tropical-storm-force wind reached
- 135 nmi (250 km, 155 mi) from the center at its widest
- Hurricane-force wind reached
- 25 nmi (46 km, 29 mi) from the center at its widest
- Eyewall radius at its peak
- 15 nmi (28 km, 17 mi)
- Overall size
- 190 nmi (352 km, 219 mi) to the outermost closed isobar
- Fastest the center moved
- 41 kt (47 mph)
- Identifier
- WP192011
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Sep 13, 12:00 | 19.4N 153.7E | 15 kt | 1010 mb | Disturbance |
| Sep 13, 18:00 | 19.7N 153.6E | 20 kt | 1007 mb | Disturbance |
| Sep 14, 00:00 | 20.0N 153.7E | 25 kt | 1004 mb | Tropical depression |
| Sep 14, 06:00 | 20.3N 154.0E | 25 kt | 1004 mb | Tropical depression |
| Sep 14, 12:00 | 20.9N 154.4E | 25 kt | 1004 mb | Tropical depression |
| Sep 14, 18:00 | 21.4N 154.8E | 30 kt | 1000 mb | Tropical depression |
| Sep 15, 00:00 | 21.6N 155.3E | 30 kt | 1000 mb | Tropical depression |
| Sep 15, 06:00 | 22.1N 155.2E | 30 kt | 1000 mb | Tropical depression |
| Sep 15, 12:00 | 22.6N 155.0E | 30 kt | 1000 mb | Tropical depression |
| Sep 15, 18:00 | 22.9N 154.2E | 30 kt | 1000 mb | Tropical depression |
| Sep 16, 00:00 | 22.8N 152.9E | 30 kt | 1000 mb | Tropical depression |
| Sep 16, 06:00 | 23.0N 151.5E | 35 kt | 996 mb | Tropical storm |
| Sep 16, 12:00 | 23.3N 150.2E | 35 kt | 996 mb | Tropical storm |
| Sep 16, 18:00 | 23.6N 148.9E | 45 kt | 989 mb | Tropical storm |
| Sep 17, 00:00 | 24.6N 147.6E | 45 kt | 989 mb | Tropical storm |
| Sep 17, 06:00 | 25.6N 146.1E | 60 kt | 978 mb | Tropical storm |
| Sep 17, 12:00 | 26.4N 144.5E | 65 kt | 974 mb | Typhoon |
| Sep 17, 18:00 | 27.4N 143.4E | 65 kt | 974 mb | Typhoon |
| Sep 18, 00:00 | 28.7N 142.8E | 70 kt | 970 mb | Typhoon |
| Sep 18, 06:00 | 30.2N 142.5E | 80 kt | 963 mb | Typhoon |
| Sep 18, 12:00 | 31.7N 142.6E | 90 kt | 956 mb | Typhoon |
| Sep 18, 18:00 | 33.3N 143.1E | 90 kt | 956 mb | Typhoon |
| Sep 19, 00:00 | 34.6N 144.4E | 90 kt | 956 mb | Typhoon |
| Sep 19, 06:00 | 36.0N 146.2E | 85 kt | 959 mb | Typhoon |
| Sep 19, 12:00 | 37.4N 148.7E | 85 kt | 959 mb | Typhoon |
| Sep 19, 18:00 | 38.8N 151.8E | 70 kt | 970 mb | Typhoon |
| Sep 20, 00:00 | 39.9N 155.7E | 65 kt | 974 mb | Typhoon |
| Sep 20, 06:00 | 41.1N 160.1E | 60 kt | 978 mb | Tropical storm |
| Sep 20, 12:00 | 41.9N 164.6E | 55 kt | 982 mb | Extratropical |
| Sep 20, 18:00 | 42.5N 169.8E | 45 kt | 989 mb | Extratropical |
| Sep 21, 00:00 | 43.1N 175.1E | 996 mb | Extratropical | |
| Sep 21, 06:00 | 43.3N 180.3E | Extratropical |
Other Western Pacific storms of 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Tropical Storm AereWestern Pacific · 2011
- Super Typhoon SongdaWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Tropical Depression SarikaWestern Pacific · 2011
- Tropical Storm HaimaWestern Pacific · 2011
- Tropical Storm MeariWestern Pacific · 2011
- Typhoon Ma-OnWestern Pacific · 2011
- Tropical Depression TokageWestern Pacific · 2011
- Typhoon Nock-TenWestern Pacific · 2011
- Super Typhoon MuifaWestern Pacific · 2011
- Typhoon MerbokWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Super Typhoon NanmadolWestern Pacific · 2011
- Tropical Storm TalasWestern Pacific · 2011
- Tropical Storm NoruWestern Pacific · 2011
- Tropical Storm KulapWestern Pacific · 2011
- Typhoon RokeWestern Pacific · 2011
- Typhoon NesatWestern Pacific · 2011
- Tropical Storm HaitangWestern Pacific · 2011
- Super Typhoon NalgaeWestern Pacific · 2011
- Tropical Depression BanyanWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Tropical Storm WashiWestern Pacific · 2011
What this means
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.
Sources
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.