The SummaryTyphoon Krovanh (international code 200911) is a 2009 Northwest Pacific typhoon; peak intensity Severe Tropical Storm, max wind 30m/s, minimum central pressure 980hPa, not in China Landfall, 2009-09-01 was numbered off, recording 16 track points.
Typhoon Krovanh, international code 200911, international name KROVANH, 2009 Northwest Pacific typhoon. Formed: 2009-08-28 20:00:00, ended: 2009-09-01 14:00:00. Peak intensity: Severe Tropical Storm, minimum central pressure: 980 hPa, max wind: 30m/s.
Typhoon Krovanh at 2009-08-28 20:00:00 at 23°N, 148.8°E over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Severe Tropical Storm intensity with max winds of 30 m/s (~108 km/h) and a minimum central pressure of 980hPa, recorded at 2009-08-30 14:00:00.
2009-09-01 14:00:00 After, Typhoon Krovanh gradually weakened and was numbered off on 2009-09-01 14:00:00 was numbered off; its lifecycle recorded 16 track points.
2009年第11号Typhoon “Krovanh”的生命周期始 at Northwest Pacific洋面, 整体路径呈现显著的NW toward 转NE toward 的抛物线型特征. formed初期 (8月28日20时至29日14时) , 系统位 at lat 23°至27.3°N, 148.8°至146.8°之间, 主要 toward NW, The latitude快速增加而During缓慢W移. 随后, 受中高纬度W风带引导气流影响, typhoon track发生明显转 toward . 从8月30日02时起, Moving direction逐渐转为N, 并 at 8月31日14时左右 at 34.5°附近完成由N toward NE direction的转折. 此后, 系统加速 toward NE, 最终 at 9月1日14时在N大W洋高纬度海域 (42.2°N, 146.3°E) 减弱消散. 全过程中, Typhoon 未Landfall任何陆地, 始终在开阔洋面上活动.
In terms of intensity changes, “Krovanh” underwent a typical after enhancement maintenance and weakening process. The initial phase is Tropical Storm level (18m/s, 996hPa) , With toward NMoving, intensity steadily increased. on August 30 at 2, Pressure dropped to 985hPa, wind speed increased to 28m/s, upgraded to Severe Tropical Storm. on August 30 at 14 reached peak intensity, max wind 30m/s, minimum pressure 980hPa. It is worth noting, at the peak state, the Typhoonined a longer Time stable period, from August 30 at 14h to August 3120, up to 30hIntensity remained at Severe Tropical Storm level (30m/s, 980hPa) , showing better structural stability.
与历史同名Typhoon 相比, 2009年“Krovanh”的Intensity处 at 中等水平. 其peak intensity (Severe Tropical Storm, 980hPa) 显著弱 at 2015年 (Severe Typhoon, 950hPa) 和2003年 (Severe Typhoon, 954hPa) 的同名Typhoon , 但略强 at 2020年的同名Typhoon (Tropical Storm, 1000hPa) . 这表明虽然命名相同, 但不同年份的大气环境差异导致其发展潜能存在较大波动.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 2009-08-28 20:00:00 | 23°N | 148.8°E | Tropical Storm | 18 | 996 | NW |
| 2009-08-29 02:00:00 | 24.4°N | 148.4°E | Tropical Storm | 18 | 996 | NNW |
| 2009-08-29 08:00:00 | 25.8°N | 147.9°E | Tropical Storm | 20 | 995 | NNW |
| 2009-08-29 14:00:00 | 27.3°N | 146.8°E | Tropical Storm | 23 | 990 | NNW |
| 2009-08-29 20:00:00 | 28.5°N | 145.9°E | Tropical Storm | 23 | 990 | NNW |
| 2009-08-30 02:00:00 | 29.9°N | 144.5°E | Severe Tropical Storm | 28 | 985 | NNW |
| 2009-08-30 08:00:00 | 30.6°N | 142.5°E | Severe Tropical Storm | 28 | 985 | NNW |
| 2009-08-30 14:00:00 | 31°N | 141°E | Severe Tropical Storm | 30 | 980 | NW |
| 2009-08-30 20:00:00 | 31.8°N | 140.6°E | Severe Tropical Storm | 30 | 980 | N |
| 2009-08-31 02:00:00 | 32.6°N | 140°E | Severe Tropical Storm | 30 | 980 | NNE |
| 2009-08-31 08:00:00 | 33.4°N | 139.9°E | Severe Tropical Storm | 30 | 980 | NNE |
| 2009-08-31 14:00:00 | 34.5°N | 140.4°E | Severe Tropical Storm | 30 | 980 | NNE |
| 2009-08-31 20:00:00 | 36.3°N | 141.4°E | Severe Tropical Storm | 30 | 980 | NE |
| 2009-09-01 02:00:00 | 38.2°N | 142.7°E | Severe Tropical Storm | 25 | 985 | NE |
| 2009-09-01 08:00:00 | 40.5°N | 144.7°E | Tropical Storm | 23 | 990 | NE |
| 2009-09-01 14:00:00 | 42.2°N | 146.3°E | Tropical Storm | 18 | 996 | NE |
Typhoon Krovanh's international code is 200911, is 2009's 11th Typhoon, international name KROVANH.
Typhoon Krovanh peak intensity is Severe Tropical Storm, max wind 30m/s, minimum central pressure 980 hPa.
According to records, Typhoon Krovanh is not in our coastal Landfall.
TyphoonSays (taifengshuo.com) provides typhoon Krovanh's Track history map, multinational meteorological agency Forecast comparison, wind circle range and IntensityTrend, page address: https://taifengshuo.com/typhoon/200911.
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