Typhoon Chaba, international code 200417, international name CHABA, 2004年Northwest PacificTyphoon . formedTime: 2004-08-20 14:00:00, 结束Time: 2004-08-31 20:00:00. peak intensity: Super Typhoon, 最低Pressure: 910 hPa, max wind : 65m/s.
Typhoon Chaba at 2004-08-20 14:00:00 at 13.8°, lng 157° over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Super Typhoon intensity with max winds of 65 m/s (~234 km/h) and a minimum central pressure of 910hPa, recorded at 2004-08-23 14:00:00.
2004-08-31 20:00:00 After, Typhoon Chaba gradually weakened and was numbered off on 2004-08-31 20:00:00 was numbered off; its lifecycle recorded 75 track points.
Typhoon Chaba (200417) 的生命史始 at Northwest Pacific远洋海域, 整体路径呈现典型的“W行—NW行—转 toward NE”的抛物线形态. formed初期 (8月20日至22日) , 系统稳定 toward WMoving, The latitude维持在13.8°N至14.4°N之间, During从157°E快速W移至146.3°E, 显示出稳定的引导气流作用. 8月23日起, 路径逐渐转为NW direction, 纬度开始显著N抬, 从14.9°N升至18.5°N.
关键的转 toward 过程发生在8月24日至26日期间. 虽然此阶段Intensity维持巅峰, 但Moving direction由NW逐渐过渡为N, 随后在8月27日后明显转 toward NE. 8月30日, Center到达34.1°N, 131.8°E, 标志着其完全Go to 中高The latitudeW风带控制区. 最终 at 8月31日消散 at 46.7°N, 145.7°E的远海区域. 整个生命周期长达11天, track points多达75个, 且全程无Landfall记录, 属 at 典型的远洋长寿命Typhoon .
Chaba的Intensity演变经历了快速增强, 长期维持巅峰及缓慢减弱三个阶段. 从Tropical Storm (20m/s) 发展为Super Typhoon仅用时约3天, minimum pressure 迅速降至925hPa以下. 8月23日14时至8月27日20时, 系统在长达4天的Time内维持Super Typhoon intensity with max winds of 保持在55-65m/s, minimum pressure 稳定在910-915hPa区间, 其中8月24日20时达到最低气压910hPa, Max Wind65m/s的巅峰状态. 这种长Time维持极高Intensity的特征在Northwest PacificTyphoon 中较为罕见. 8月27日后, 随着The latitude升高, intensity 开始阶梯式减弱, 直至转化为Tropical Storm.
Chaba peaked only at Typhoon level (965hPa) in 2022 and Chaba at Severe Typhoon level (940hPa) in 2010, although Chaba's lowest air pressure (910hPa) °E in 2004 was lower than Chaba's lowest air pressure (920hPa) in 2016, which also reached Super Typhoon level, and the maximum wind was greater (65m/s vs. not specified but usually 920hPa corresponds to wind speed slightly lower or equivalent), showing that the 2004 system had a deeper co-flow core and stronger energy reserves.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 2004-08-20 14:00:00 | 13.8°N | 157°E | Tropical Storm | 20 | 990 | W |
| 2004-08-20 21:00:00 | 14.4°N | 155.4°E | Severe Tropical Storm | 25 | 985 | W |
| 2004-08-21 06:00:00 | 14.5°N | 153.7°E | Severe Tropical Storm | 25 | 985 | W |
| 2004-08-21 14:00:00 | 14.4°N | 151.8°E | Severe Tropical Storm | 28 | 980 | |
| 2004-08-21 21:00:00 | 14.2°N | 150.1°E | Severe Tropical Storm | 30 | 975 | W |
| 2004-08-22 06:00:00 | 14.2°N | 147.7°E | Typhoon | 40 | 960 | W |
| 2004-08-22 14:00:00 | 14.3°N | 146.3°E | Typhoon | 40 | 955 | NWW |
| 2004-08-22 21:00:00 | 14.4°N | 145.6°E | Severe Typhoon | 50 | 930 | W |
| 2004-08-23 06:00:00 | 15.1°N | 144.1°E | Super Typhoon | 55 | 920 | NWW |
| 2004-08-23 14:00:00 | 15.5°N | 142.9°E | Super Typhoon | 65 | 915 | |
| 2004-08-24 08:00:00 | 17.4°N | 140.3°E | Super Typhoon | 65 | 910 | |
| 2004-08-25 08:00:00 | 20.3°N | 138.2°E | Super Typhoon | 65 | 910 | |
| 2004-08-26 08:00:00 | 23.4°N | 136.3°E | Super Typhoon | 65 | 910 | |
| 2004-08-27 08:00:00 | 26°N | 135.1°E | Super Typhoon | 55 | 930 | |
| 2004-08-28 08:00:00 | 27.1°N | 133.9°E | Severe Typhoon | 50 | 940 | |
| 2004-08-29 05:00:00 | 28°N | 131.8°E | Severe Typhoon | 50 | 940 | |
| 2004-08-29 17:00:00 | 29.2°N | 130.1°E | Severe Typhoon | 50 | 940 | |
| 2004-08-30 05:00:00 | 30.9°N | 130°E | Severe Typhoon | 45 | 950 | |
| 2004-08-30 17:00:00 | 34.1°N | 131.8°E | Typhoon | 35 | 970 | |
| 2004-08-31 20:00:00 | 46.7°N | 145.7°E | Tropical Storm | 23 | 975 |
Sampled rows shown; all 75 track points are available on the interactive map or via the public API .
Typhoon Chaba's international code is 200417, is 2004's 17th Typhoon, international name CHABA.
Typhoon Chabapeak intensity is Super Typhoon°E, max wind 65m/s, minimum Pressure 910 hPa.
According to records, Typhoon Chaba is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Chaba's Track history map, multinational meteorological agency Forecast comparison, wind circle range with IntensityTrend, page address: https://taifengshuo.com/typhoon/200417.
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