Typhoon Wendy Route Analysis
Path and Moving Characteristics
Typhoon Wendy (197121) at 1971年9月4日在Northwest Pacific远洋海域 formed, 初始Position位 at 19.5°N, 167.1°E. 其生命史全程未Landfall任何land, 主要在开阔洋面上活动. 从路径坐标序列分析, 该Typhoon 初期主要呈现 toward WNW的Trend, 纬度从19.5°N缓慢上升至21.6°N, 经度则从167.1°EW移至162.8°E. 在9月7日至9月8日期间, Typhoon 在21.5°N附近出现短暂的纬 toward 停滞, 随后路径发生显著转折, 转为 toward N及NE. Go to 中高纬度后, 移速明显加快, 纬度迅速从24.8°N攀升至48.5°N, 经度则由157.5°EE移至157.2°E, 最终在Japan以E远海转化为温带气旋或消散. 整体路径呈现出典型的“W进-停滞-转 toward NE”的抛物线型特征, 转 toward 点大致位 at lat 21.5度, lng 160度附近海域.
Intensity evolution and historical comparison
Wendy underwent an exceptionally rapid and explosive intensification. Starting as a Tropical Depression on September 4 (10m/s, 1004hPa), it reached its peak in less than three days, attaining Super Typhoon status by 20:00 on September 7, with a minimum central pressure of 915hPa and maximum wind speeds of 70m/s. Notably, it showed signs of secondary intensification on September 10 while moving north, with pressure falling again to 922hPa and wind speed recovering to 60m/s, indicating strong resilience. It then weakened gradually under the influence of the high-latitude environment, eventually declining to Severe Tropical Storm intensity before dissipating on September 14.
Compared with previous typhoons of the same name, Wendy's intensity in 1971 was notably higher than in other years. The peak intensities of the same-named typhoons in 1999, 1974, and 1978 were Tropical Storm, Severe Tropical Storm, and Typhoon, respectively, with minimum pressures all at or above 961hPa. Only Wendy in 1968 (196811) was comparable in intensity, also reaching Super Typhoon status. However, Wendy's minimum pressure in 1971 was slightly lower at 915hPa than its 1968 value of 918hPa, and its maximum wind speed was higher, making it one of the highly destructive remote-ocean Severe Typhoons on record.
Typhoon Wendy routes
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 09-04 20:00 | 19.5°N
167.1°E | Tropical Depression | 10 m/s
1004 hPa | - |
| 09-05 08:00 | 19.7°N
166.4°E | Tropical Storm | 20 m/s
990 hPa | WNW |
| 09-05 20:00 | 20.5°N
166.1°E | Severe Tropical Storm | 30 m/s
980 hPa | NNW |
| 09-06 08:00 | 20.9°N
165.3°E | Typhoon | 40 m/s
972 hPa | WNW |
| 09-06 20:00 | 21.4°N
163.6°E | Super Typhoon | 65 m/s
930 hPa | W |
| 09-07 08:00 | 21.5°N
162.2°E | Super Typhoon | 65 m/s
923 hPa | W |
| 09-07 20:00 | 21.5°N
160.5°E | Super Typhoon | 70 m/s
915 hPa | W |
| 09-08 08:00 | 21.4°N
159.8°E | Super Typhoon | 65 m/s
920 hPa | WNW |
| 09-08 20:00 | 21.6°N
159.6°E | Super Typhoon | 60 m/s
940 hPa | NW |
| 09-09 08:00 | 22.4°N
159.5°E | Severe Typhoon | 50 m/s
950 hPa | N |
| 09-09 20:00 | 24.1°N
158.2°E | Super Typhoon | 55 m/s
940 hPa | NW |
| 09-10 08:00 | 25.6°N
156.5°E | Super Typhoon | 55 m/s
936 hPa | NW |
| 09-10 20:00 | 27.1°N
153.9°E | Super Typhoon | 60 m/s
922 hPa | WNW |
| 09-11 08:00 | 28.1°N
151.1°E | Severe Typhoon | 50 m/s
935 hPa | WNW |
| 09-11 20:00 | 29.6°N
149.4°E | Severe Typhoon | 45 m/s
945 hPa | NW |
| 09-12 08:00 | 31.9°N
147.6°E | Severe Typhoon | 45 m/s
952 hPa | NNW |
| 09-12 20:00 | 35.4°N
147.3°E | Typhoon | 40 m/s
954 hPa | N |
| 09-13 08:00 | 40.8°N
148.8°E | Typhoon | 35 m/s
960 hPa | NNE |
| 09-13 20:00 | 46.6°N
153.2°E | Severe Tropical Storm | 30 m/s
975 hPa | NNE |
| 09-14 02:00 | 48.5°N
157.2°E | Severe Tropical Storm | 25 m/s
985 hPa | NE |
Sampled rows shown; all 38 track points are available on the interactive map or via the public API .
FAQ
Wendy was the 1971 Typhoon.
The designation 197121 used for Typhoon Wendy is a historical CMA number, meaning the 21st typhoon of 1971; its international name was WENDY. The international numbering system for the Northwest Pacific did not begin until 1981. Before then, each agency maintained its own numbering, so the numbers assigned by JMA (Japan), the Joint Typhoon Warning Center (USA), and China's meteorological authorities could differ for the same typhoon and cannot be compared directly.
Where does the track data for Typhoon Wendy come from?
Track data sources: China Meteorological Administration Tropical Cyclone Best Track Dataset (CMA-STI); wind speeds are 2-minute sustained wind speeds.
What is the highest level of Typhoon Wendy?
Typhoon Wendy peak intensity is Super Typhoon, max wind 70m/s, minimum central pressure 915 hPa.
Typhoon Wendy Landfall?
According to records, Typhoon Wendy is not in our coastal Landfall.
Where can I view typhoon Wendy's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Wendy's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197121.
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