The SummaryTyphoon Ruth (international code 197701) is a 1977 Northwest Pacific typhoon; peak intensity Severe Tropical Storm, max wind 30m/s, minimum central pressure 975hPa, not in China Landfall, 1977-06-17 was numbered off, recorded 14 track points.
Typhoon Ruth, international code 197701, international name RUTH, 1977 Northwest Pacific typhoon. Formed: 1977-06-14 06:00:00, ended: 1977-06-17 12:00:00. Peak intensity: Severe Tropical Storm, minimum central pressure: 975 hPa, max wind: 30m/s.
Typhoon Ruth at 1977-06-14 06:00:00 at 16°N, 116.9°E over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Severe Tropical Storm intensity with max winds of 30 m/s (~108 km/h) and a minimum central pressure of 975hPa, recorded at 1977-06-15 00:00:00.
1977-06-17 12:00:00 After, Typhoon Ruth gradually weakened and was numbered off on 1977-06-17 12:00:00 was numbered off; its lifecycle recorded 14 track points.
Typhoon Ruth (197701) 的生命史短暂且路径清晰, 整体呈现稳定的NE toward MovingTrend. formed初期 (6月14日06:00) , 系统位 at lat 16°N, 116.9°附近, 随后在副热带高压引导下, 持续 toward NNW. 从坐标序列分析, 该Typhoon 在N上过程中逐渐 toward E偏移, 路径曲率较小, 未出现明显的打转或剧烈转 toward 现象.
From June 14 to 16, the latitude from 16°N rapidly increased to 25.3°N, the length from 116.9°EE to 119.5°E, showing its influence by guided airflow is significant. Go to High latitude ocean after June 17th, with the system weakened into Nameless, its Moving direction further turned to NE, and finally at June 17th at 12:00 at 28.3°N, 123.2° dispersed.
Ruth的Intensity演变符合典型的热带气旋生命史特征, 经历快速增强, 巅峰维持及逐渐减弱三个阶段. 系统在 formed后12h内迅速由Tropical Storm (20m/s) intensified into Severe Tropical Storm (25m/s) , 并 at 6月15日00:00达到peak intensity, max wind 录得30m/s. 巅峰状态维持约12h后, 自6月15日12:00起开始减弱, wind speed逐步降至28m/s, 25m/s. 6月16日00:00后, 系统降级为Tropical Storm, 并最终在6月16日18:00 weakened into Nameless, 直至消散.
Its peak intensity is Severe Tropical Storm, low at 1991 Ruth (Super Typhoon) and 1983 Ruth (Severe Tropical Storm, NOTE: Although the same level but usually Super Typhoon is more destructive, here only do grade contrast), but high at 1994 Ruth (Tropical Storm) and 1987 Ruth (Nameless).
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1977-06-14 06:00:00 | 16°N | 116.9°E | Tropical Storm | 20 | 990 | |
| 1977-06-14 12:00:00 | 16.8°N | 116.6°E | Severe Tropical Storm | 25 | 985 | |
| 1977-06-14 18:00:00 | 17.7°N | 116.4°E | Severe Tropical Storm | 28 | 980 | |
| 1977-06-15 00:00:00 | 18.6°N | 116.4°E | Severe Tropical Storm | 30 | 975 | |
| 1977-06-15 06:00:00 | 19.3°N | 116.7°E | Severe Tropical Storm | 30 | 980 | |
| 1977-06-15 12:00:00 | 20.1°N | 117°E | Severe Tropical Storm | 28 | 980 | |
| 1977-06-15 18:00:00 | 21.1°N | 117.3°E | Severe Tropical Storm | 25 | 980 | |
| 1977-06-16 00:00:00 | 22.2°N | 117.7°E | Tropical Storm | 23 | 980 | |
| 1977-06-16 06:00:00 | 23.2°N | 118.1°E | Tropical Storm | 23 | 985 | |
| 1977-06-16 12:00:00 | 24.3°N | 118.7°E | Tropical Storm | 20 | 990 | |
| 1977-06-16 18:00:00 | 25.3°N | 119.5°E | Nameless | 17 | 994 | |
| 1977-06-17 00:00:00 | 26.4°N | 120.6°E | Nameless | 15 | 1000 | |
| 1977-06-17 06:00:00 | 27.4°N | 121.8°E | Nameless | 12 | 1000 | |
| 1977-06-17 12:00:00 | 28.3°N | 123.2°E | Nameless | 10 | 1000 |
Typhoon Ruth's international code is 197701, is 1977 number 1 Typhoon, international name RUTH.
Typhoon Ruth peak intensity is Severe Tropical Storm, max wind 30m/s, minimum central pressure 975 hPa.
According to records, Typhoon Ruth is not in our coastal Landfall.
TyphoonSays (taifengshuo.com) provides typhoon Ruth's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197701.
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