Typhoon Della Trail Characteristics
Path and Moving Characteristics
Typhoon Della (197125) 的生命史始 at 1971年9月27日00时, 初始Position位 at lat 17°N, 122.2°附近, 随后 toward NW direction稳定Moving. 在整个生命周期内, 该Typhoon 未出现明显的路径转 toward 或折返现象, 始终保持WNW的MovingTrend, 最终 at 9月30日18时在Vietnam以E海域 (lat 19.7°N, 104.2°) weakened into Tropical Depression并结束观测. 从经纬度变化来看, 其纬度由17°N缓慢N抬至19.7°N, 经度则由122.2°E大幅W移至104.2°E, 显示出显著的纬 toward Moving分量. 值得注意的是, 在9月28日12时至9月29日00时期间, Typhoon 中心纬度维持在19.1°N附近, 经度快速W移, 表明此时引导气流强劲, 推动系统快速穿Vietnam海N部海域. 由 at 全程无Landfall记录, 其结构未受land地形摩擦的直接破坏, 直至Go to 中S半岛近海后才逐渐消散.
Intensity Evolution Analysis
Della的Intensity变化呈现出典型的“快速增强-巅峰维持-迅速减弱”特征. formed初期为Tropical Depression, wind speed在12m/s至17m/s之间波动. 9月27日18时 intensified into Tropical Storm, 随后经历约42h的快速增强期, at 9月28日12时达到Typhoon 级别 (33m/s) , 并在6h后 (9月28日18时) 达到peak intensity, max wind 为35m/s. 巅峰状态维持了约12h, 期间Center在W沙群岛以E海域徘徊. 自9月29日06时起, 随着系统继续W移, intensity 开始显著下滑, 由Typhoon 级降为Severe Tropical Storm, 并 at 当日18时进一步 weakened into Tropical Storm. 在生命末期, wind speed降至20m/s以下, 最终回归Tropical Depression等级. 整体而言, 其Intensity峰值虽未达到Super Typhoon级别, 但具备完整的Typhoon 结构生命周期.
Same-Name Comparison
In the sequence of names 'Della', the 1971 DellaIntensity at the middle level. Compared with the 1978 Della (top only for Tropical Storm) in 1971, Della reached the Typhoon level, intensity significantly stronger. however, with the 1974 (Severe Typhoon), 1968 and 1963 (both Super Typhoon) of the same name Typhoon, the 1971 Della's 35m/s peak wind speed seemed weaker.
Typhoon Della routes
| Time | Position | Intensity | Wind · Pressure | Moving Toward |
|---|
| 09-24 08:00 | 12.1°N
129.9°E | Tropical Depression | 10 m/s
1006 hPa | - |
| 09-24 20:00 | 13.1°N
128.8°E | Tropical Depression | 10 m/s
1004 hPa | NW |
| 09-25 08:00 | 13.7°N
127.9°E | Tropical Depression | 12 m/s
1003 hPa | WNW |
| 09-25 20:00 | 14.2°N
126.8°E | Tropical Depression | 15 m/s
1002 hPa | WNW |
| 09-26 08:00 | 15.1°N
125.4°E | Tropical Depression | 15 m/s
1000 hPa | WNW |
| 09-26 20:00 | 16.2°N
124°E | Tropical Depression | 12 m/s
1000 hPa | NW |
| 09-27 08:00 | 17.2°N
122.2°E | Tropical Depression | 12 m/s
1000 hPa | WNW |
| 09-27 20:00 | 17.3°N
120°E | Tropical Storm | 20 m/s
998 hPa | WNW |
| 09-28 08:00 | 18.8°N
117.2°E | Severe Tropical Storm | 30 m/s
995 hPa | WNW |
| 09-28 20:00 | 19°N
114.5°E | Typhoon | 35 m/s
987 hPa | W |
| 09-29 08:00 | 19.2°N
112.2°E | Typhoon | 35 m/s
970 hPa | W |
| 09-29 20:00 | 18.7°N
109.8°E | Tropical Storm | 20 m/s
985 hPa | WSW |
| 09-30 08:00 | 18.3°N
107.5°E | Tropical Depression | 15 m/s
995 hPa | W |
| 09-30 20:00 | 18°N
104.8°E | Tropical Depression | 10 m/s
998 hPa | W |
| 10-01 02:00 | 18°N
103.2°E | Tropical Depression | 10 m/s
1000 hPa | W |
Sampled rows shown; all 28 track points are available on the interactive map or via the public API .
FAQ
Typhoon Della was the 1971 Typhoon.
Typhoon Della's international code is 197125, is the 25th Typhoon of 1971, international name DELLA.
What is the highest level of Typhoon Della?
Typhoon Della peak intensity is Typhoon , max wind 35m/s, minimum central pressure 970 hPa.
Is there a Typhoon DellaLandfall?
According to records, Typhoon Della is not in our coastal landfall.
Where can I view typhoon Della's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Della's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197125.
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