Typhoon Lan, international code 201721, international name LAN, 2017年Northwest PacificTyphoon . formedTime: 2017-10-16 02:00:00, 结束Time: 2017-10-23 08:00:00. peak intensity: Super Typhoon, 最低Pressure: 925 hPa, max wind : 58m/s.
Typhoon Lan at 2017-10-16 02:00:00 at 9.7°, lng 136.2° over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Super Typhoon intensity with max winds of 58 m/s (~209 km/h) and a minimum central pressure of 925hPa, recorded at 2017-10-21 08:00:00.
2017-10-23 02:00:00, Typhoon Lan在Japan静冈 County御前崎 CityLandfall.
2017-10-23 08:00:00 After, Typhoon Lan gradually weakened and was numbered off on 2017-10-23 08:00:00 was numbered off; its lifecycle recorded 51 track points.
Typhoon Lan (201721) 的生命史始 at Northwest Pacific低The latitude海域, 整体路径呈现典型的“抛物线”型Moving特征. formed初期 (10月16日至17日) , 系统位 at lat 9.7°至10.9°, lng 132.3°至136.2°之间, 主要受引导气流影响 toward W direction缓慢Moving, 纬度变化幅度较小. 10月18日后, 路径逐渐转为NW direction, During稳定在lng 130°至132°区间, 纬度开始显著N抬.
关键的转 toward 节点出现在10月20日至21日期间. 数据显示, 10月20日05:00至17:00, Typhoon 中心During维持在130°E附近, 随后 at 21日05:00 toward E偏移至130.9°E, 标志着系统完成从NW行到NE行的转 toward . 此后, Typhoon 加速 toward NE, The latitude从21日的23.1°N迅速攀升至23日的37°N, 经度跨越至141.1°E, 最终在Japan本州岛以E洋面转化为温带气旋或消散. Landfall记录显示, 该系统 at 10月23日02:00以Typhoon Intensity (40m/s, 955hPa) LandfallJapan静冈 County御前崎 City, 此时已处 at 生命末期的高速N移阶段.
The initial phase was Tropical Storm (18-20m/s), intensified into Severe Tropical Storm 18 October, upgraded to Typhoon 19 October 20 to 21 October is its main eruption period, Pressure dropped sharply from 960hPa to the lowest 925hPa°E, max wind jumped to 58m/s, to the Super Typhoon level.
与同名Typhoon 对比, 2023年第7号Typhoon Lan同样达到了Super Typhoon级别, minimum pressure 为930hPa. 相比之下, 2017年Lan的最低气压更低 (925hPa vs 930hPa) , 峰值wind speed更高 (58m/s vs 未提供具体wind speed但气压略高暗示Intensity相当或稍弱) , 表明2017年Lan在peak intensity上略胜 at 2023年同名Typhoon . 然而, 2017年Lan在LandfallJapan时Intensity已降至Typhoon 级 (40m/s) , 而其在高The latitude地区的维持能力体现了该年度秋季海温及大气环流对Typhoon 能量的有利支持.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 2017-10-16 02:00:00 | 9.7°N | 136.2°E | Tropical Storm | 18 | 1000 | NWW |
| 2017-10-16 14:00:00 | 10.5°N | 135.4°E | Tropical Storm | 20 | 995 | NWW |
| 2017-10-17 02:00:00 | 10.6°N | 133.6°E | Tropical Storm | 20 | 995 | W |
| 2017-10-17 14:00:00 | 10.4°N | 132.4°E | Severe Tropical Storm | 25 | 985 | NNE |
| 2017-10-18 02:00:00 | 10.7°N | 132.5°E | Severe Tropical Storm | 28 | 982 | N |
| 2017-10-18 14:00:00 | 13°N | 132.4°E | Severe Tropical Storm | 30 | 980 | NNW |
| 2017-10-18 23:00:00 | 14.3°N | 131.1°E | Typhoon | 35 | 970 | NNW |
| 2017-10-19 08:00:00 | 15.3°N | 130.2°E | Typhoon | 38 | 965 | NNW |
| 2017-10-19 17:00:00 | 16.7°N | 129.9°E | Typhoon | 38 | 965 | NNW |
| 2017-10-20 02:00:00 | 18.1°N | 129.9°E | Typhoon | 38 | 965 | N |
| 2017-10-20 11:00:00 | 19.2°N | 130°E | Typhoon | 40 | 960 | N |
| 2017-10-20 20:00:00 | 20.2°N | 130.1°E | Severe Typhoon | 45 | 950 | NNE |
| 2017-10-21 05:00:00 | 21°N | 130.9°E | Super Typhoon | 55 | 930 | NNE |
| 2017-10-21 14:00:00 | 22.3°N | 132°E | Super Typhoon | 58 | 925 | NNE |
| 2017-10-22 02:00:00 | 25.5°N | 133.2°E | Super Typhoon | 55 | 930 | NNE |
| 2017-10-22 14:00:00 | 29.7°N | 134.3°E | Severe Typhoon | 48 | 945 | NNE |
| 2017-10-23 02:00:00 | 34.8°N | 138.1°E | Typhoon | 40 | 955 | NE |
| 2017-10-23 08:00:00 | 37°N | 141.1°E | Severe Tropical Storm | 30 | 965 | NE |
Sampled rows shown; all 51 track points are available on the interactive map or via the public API .
Typhoon Lan’s international code is 201721.
Typhoon Lanpeak intensity is Super Typhoon°E, max wind 58m/s, minimum Pressure 925 hPa.
2017-10-23 02:00:00在Japan静冈 County御前崎 CityLandfall.
TyphoonSays (taifengshuo.com) provides typhoon Lan's Track history map, multinational meteorological agency Forecast comparison, windshield range with IntensityTrend, page address: https://taifengshuo.com/typhoon/201721.
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