The SummaryTyphoon Wanda (international code 197706) is a 1977 Northwest Pacific typhoon; peak intensity Tropical Storm, max wind 23m/s, minimum central pressure 985hPa, not in China Landfall, 1977-08-04 was numbered off, recording 17 track points.
Typhoon Wanda, international code 197706, international name WANDA, 1977 Northwest Pacific typhoon. Formed: 1977-07-31 06:00:00, ended: 1977-08-04 06:00:00. Peak intensity: Tropical Storm, minimum central pressure: 985 hPa, max wind: 23m/s.
Typhoon Wanda at 1977-07-31 06:00:00 at 23.5°N, 140.9°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Tropical Storm intensity with max winds of 23 m/s (~83 km/h) and a minimum central pressure of 985hPa, recorded at 1977-08-01 06:00:00.
1977-08-04 06:00:00 After, Typhoon Wanda gradually weakened and was numbered off on 1977-08-04 06:00:00 was numbered off; its lifecycle recorded 17 track points.
1977年第6号Typhoon “Wanda”的生命史始 at Northwest Pacific洋面, 整体路径呈现显著的 toward NE特征. formed初期 (7月31日06:00至18:00) , 系统位 at lat 23.5°至24.5°N, 140.7°至140.9°之间, Moving速度相对缓慢, 主要 toward NW direction微弱偏移. Go to 8月1日后, 气旋转 toward 正N direction加速Moving, The latitude从25.1°N迅速攀升至27.7°N, During基本维持在140.4°E至140.7°E狭窄范围内, 显示出受引导气流影响较为稳定的经 toward 运动特征.
About 06:00 on August 2, the path showed a noticeable twist, and the system began toward NE, extending the length from 140.4°E toward E quickly to 146.8°E. This phase of Moving accelerated, and the latitude continued to rise N, finally at 06:00 on August 4, at 31.5°N, weakening dispersed near 146.8°.
In terms of Intensity changes, “Wanda” represents a typical “enhancing-maintaining-weakening” process. Late July 31 to early August 1, the system by Nameless intensified into Tropical Storm, max wind reached a peak of 23m/s. The peak intensity wasined between 06:00 on August 1 to 18:00 on August 1, then briefly weakened into Nameless on the morning of August 2.
Its peak is only at Tropical Storm level (23m/s), far lower at 1971 'Wanda' (Typhoon) and 1962 'Wanda' (Severe Typhoon), also weak at 1974 'Wanda' (Severe Tropical Storm).
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1977-07-31 06:00:00 | 23.5°N | 140.9°E | Nameless | 15 | 1000 | |
| 1977-07-31 12:00:00 | 24°N | 140.9°E | Nameless | 15 | 1000 | |
| 1977-07-31 18:00:00 | 24.5°N | 140.7°E | Nameless | 17 | 1000 | |
| 1977-08-01 00:00:00 | 25.1°N | 140.6°E | Tropical Storm | 20 | 994 | |
| 1977-08-01 06:00:00 | 25.8°N | 140.6°E | Tropical Storm | 23 | 992 | |
| 1977-08-01 12:00:00 | 26.5°N | 140.7°E | Tropical Storm | 23 | 992 | |
| 1977-08-01 18:00:00 | 27.1°N | 140.5°E | Tropical Storm | 23 | 992 | |
| 1977-08-02 00:00:00 | 27.7°N | 140.4°E | Tropical Storm | 20 | 992 | |
| 1977-08-02 06:00:00 | 28.1°N | 141.4°E | Nameless | 17 | 990 | |
| 1977-08-02 12:00:00 | 28.4°N | 142.6°E | Nameless | 15 | 990 | |
| 1977-08-02 18:00:00 | 29.2°N | 143°E | Nameless | 17 | 990 | |
| 1977-08-03 00:00:00 | 30°N | 143.5°E | Tropical Storm | 23 | 985 | |
| 1977-08-03 06:00:00 | 30.3°N | 144.3°E | Tropical Storm | 23 | 990 | |
| 1977-08-03 12:00:00 | 30.5°N | 145°E | Tropical Storm | 20 | 990 | |
| 1977-08-03 18:00:00 | 30.8°N | 145.7°E | Nameless | 17 | 990 | |
| 1977-08-04 00:00:00 | 31.2°N | 146.3°E | Nameless | 15 | 990 | |
| 1977-08-04 06:00:00 | 31.5°N | 146.8°E | Nameless | 15 | 990 |
Typhoon Wanda's international code is 197706, which is the 6th Typhoon of 1977, the international name WANDA.
Typhoon Wanda peak intensity is Tropical Storm, max wind 23m/s, minimum central pressure 985 hPa.
According to records, Typhoon Wanda is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Wanda's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197706.
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