The SummaryTyphoon Washi (international code 201121) is a 2011 Northwest Pacific typhoon; peak intensity Severe Tropical Storm, max wind 25m/s, minimum central pressure 992hPa, not in China Landfall, 2011-12-19 was numbered off, recording 18 track points.
Typhoon Washi, international code 201121, international name WASHI, 2011 Northwest Pacific typhoon. Formed: 2011-12-15 14:00:00, ended: 2011-12-19 14:00:00. Peak intensity: Severe Tropical Storm, minimum central pressure: 992 hPa, max wind: 25m/s.
Typhoon Washi at 2011-12-15 14:00:00 at 7.7°N, 132.4°E over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Severe Tropical Storm intensity with max winds of 25 m/s (~90 km/h) and a minimum central pressure of 992hPa, recorded at 2011-12-18 17:00:00.
2011-12-19 14:00:00 After, Typhoon Washi gradually weakened and was numbered off on 2011-12-19 14:00:00 was numbered off; its lifecycle recorded 18 track points.
Typhoon Washi (201121) 的生命史始 at 2011年12月15日14时, formedPosition位 at lat 7.7°N, 132.4°的Northwest Pacific洋面. 在初始阶段, 系统主要呈现 toward WN的Trend. 从12月15日至12月17日期间, 其The latitude由7.7°N缓慢上升至9.2°N, During则从132.4°E大幅W移至120.5°E, 显示出稳定的W行分量. 值得注意的是, 在12月17日20时至12月18日08时之间, typhoon track出现明显的N翘迹象, 纬度从9.2°N快速跃升至10.7°N, 表明引导气流可能发生了细微变化或受副热带高压边缘影响产生 toward N推力. 随后, 自12月18日14时起, 系统再次调整 direction, 转为 toward WS, 直至12月19日14时消散 at lat 9.7°N, 112.2°附近. 整个生命周期内, 该Typhoon 未记录到Landfall行为, 始终在海上活动, 路径整体呈“W-NW-SW”的弧形轨迹.
在Intensity变化方面, Washi经历了“增强-波动-再增强-减弱”的过程. formed初期为Tropical Storm级别 (18m/s) , 随后在12月16日08时达到第一个Intensity高点 (23m/s, 992hPa) . 此后Intensity有所回落, 维持 at 18-20m/s区间. Go to 12月18日后, 系统再度加强, at 当日17时达到peak intensity, 升级为Severe Tropical Storm, 中心Max Wind达25m/s, minimum pressure 降至992hPa, 并在此Intensity上维持了约9个h. 随后系统逐渐减弱, 最终消散时wind speed降回20m/s.
Compared with the same name Typhoon, the 2005 Typehoon Washi (200508) peak intensity is the same as the Severe Tropical Storm, but its lowest atmospheric pressure is 984hPa. Compared, the 2011 Washi although the peak level is the same, but the Pressure is higher (992hPa > 984hPa), indicating its core convection intensity and overall structural density is slightly weaker at the 2005 Typehoon .
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 2011-12-15 14:00:00 | 7.7°N | 132.4°E | Tropical Storm | 18 | 1000 | WNW |
| 2011-12-15 20:00:00 | 7.8°N | 130.9°E | Tropical Storm | 20 | 996 | WNW |
| 2011-12-16 02:00:00 | 7.6°N | 129°E | Tropical Storm | 20 | 996 | null |
| 2011-12-16 08:00:00 | 7.6°N | 128.3°E | Tropical Storm | 23 | 992 | WNW |
| 2011-12-16 14:00:00 | 7.8°N | 126.7°E | Tropical Storm | 23 | 992 | WNW |
| 2011-12-16 20:00:00 | 8.1°N | 125.7°E | Tropical Storm | 20 | 996 | WNW |
| 2011-12-17 02:00:00 | 8.3°N | 124.4°E | Tropical Storm | 20 | 996 | null |
| 2011-12-17 08:00:00 | 8.8°N | 122.5°E | Tropical Storm | 18 | 998 | WNW |
| 2011-12-17 14:00:00 | 9.2°N | 121°E | Tropical Storm | 20 | 996 | NNW |
| 2011-12-17 20:00:00 | 9.2°N | 120.5°E | Tropical Storm | 20 | 998 | W |
| 2011-12-18 02:00:00 | 9.8°N | 119.2°E | Tropical Storm | 20 | 998 | NWW |
| 2011-12-18 08:00:00 | 10.7°N | 117.6°E | Tropical Storm | 23 | 994 | NWW |
| 2011-12-18 14:00:00 | 10.5°N | 115.5°E | Tropical Storm | 23 | 994 | W |
| 2011-12-18 17:00:00 | 10.3°N | 114.8°E | Severe Tropical Storm | 25 | 992 | SWW |
| 2011-12-18 20:00:00 | 10.2°N | 114.4°E | Severe Tropical Storm | 25 | 992 | SWW |
| 2011-12-19 02:00:00 | 10.6°N | 114.4°E | Severe Tropical Storm | 25 | 992 | W |
| 2011-12-19 08:00:00 | 9.7°N | 113.4°E | Tropical Storm | 23 | 996 | SWW |
| 2011-12-19 14:00:00 | 9.7°N | 112.2°E | Tropical Storm | 20 | 998 | SWW |
The international code for Typhoon Washi is 201121, which is the 21st Typhoon of 2011, the international name WASHI.
Typhoon Washi peak intensity is Severe Tropical Storm, max wind 25m/s, minimum central pressure 992 hPa.
According to records, Typhoon Washi is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Washi's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/201121.
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