The SummaryTyphoon Amy (international code 197707) is a 1977 Northwest Pacific typhoon; peak intensity Tropical Storm, max wind 20m/s, minimum central pressure 985hPa, was numbered off, recorded 16 track points.
Typhoon Amy, international code 197707, international name AMY, 1977 Northwest Pacific typhoon. Formed: 1977-08-20 00:00:00, ended: 1977-08-23 18:00:00. Peak intensity: Tropical Storm, minimum central pressure: 985 hPa, max wind: 20m/s.
Typhoon Amy at 1977-08-20 00:00:00 at 20.6°N, 120.6°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Tropical Storm intensity with max winds of 20 m/s (~72 km/h) and a minimum central pressure of 985hPa, recorded at 1977-08-23 12:00:00.
1977-08-23 18:00:00 After, Typhoon Amy gradually weakened and was numbered off on 1977-08-23 18:00:00 was numbered off; its lifecycle recorded 16 track points.
Typhoon Amy (197707)'s life cycle was shorter, from formed to dispersed for about 3 and a half days.The entire path showed remarkable 'first W after N after NE' curved characteristics.Initial phase (August 20: 00 to 21: 00) , system position at Taiwan Strait S section and Fujian coastal nearby waters, influenced by guided airflow, mainly toward W, length slowly shifted from 120.6°E to 117.8°E, latitude small fluctuations between 20.6°N to 21.0°N, showing the characteristics of near-sea wandering.
On August 21, at 6 a.m., there was a noticeable turn of the path, and the system began toward NE. This turn toward process was rather smooth, without a sharp turn. Subsequently, the Typhoon along ChinaSEcoastal outer sea area N, through Taiwan to E ocean surface. It is worth noting that during August 22, at 18:00 to 23:00, the system Moving speed significantly accelerated, the latitude jumped rapidly in 6h from 27.4°N to 30.1°N, the length also shifted E, indicating its Go to W wind belt accelerated toward JapanS ocean.
在Intensity方面, Typhoon Amy整体维持较弱等级. formed初期为Nameless, max wind 12m/s. 在W行及转 toward 初期 (8月20日至22日中午) , 其Intensity长期稳定在Nameless intensity with max winds of 保持在15m/s, Pressure数据缺失, 但wind speed未见明显增强迹象. 直到生命末期 (8月23日06时后) , 随着系统 toward N高The latitude海域Moving, intensity 略有提升, max wind 增至17m/s至20m/s, 并 at 8月23日12时达到peak intensity, 升级为Tropical Storm. 此后Intensity维持不变直至结束观测.
In history, 1991 Amy (199107) and 1971 Amy (197104) both developed as Super Typhoon, 1974 Amy (197402) also reached Severe Tropical Storm level. Even compared to 1994 Amy (199411), the latter is also only Tropical Storm peak, but in 1977 Amy's Max Wind (20m/s) at Tropical Storm's lower limit level, and lack of air pressure data support the development of its deep coastline.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1977-08-20 00:00:00 | 20.6°N | 120.6°E | Nameless | 12 | 992 | |
| 1977-08-20 06:00:00 | 20.9°N | 119.8°E | Nameless | 15 | 992 | |
| 1977-08-20 12:00:00 | 21°N | 119°E | Nameless | 15 | 985 | |
| 1977-08-20 18:00:00 | 20.8°N | 118.1°E | Nameless | 15 | 985 | |
| 1977-08-21 00:00:00 | 20.8°N | 117.8°E | Nameless | 15 | 985 | |
| 1977-08-21 06:00:00 | 21.5°N | 118.2°E | Nameless | 15 | 985 | |
| 1977-08-21 12:00:00 | 22.3°N | 118.8°E | Nameless | 15 | 985 | |
| 1977-08-21 18:00:00 | 22.9°N | 119.3°E | Nameless | 15 | 985 | |
| 1977-08-22 00:00:00 | 23.5°N | 119.9°E | Nameless | 15 | 985 | |
| 1977-08-22 06:00:00 | 24.2°N | 120.3°E | Nameless | 15 | 990 | |
| 1977-08-22 12:00:00 | 24.9°N | 120.8°E | Nameless | 15 | 990 | |
| 1977-08-22 18:00:00 | 27.4°N | 122.9°E | Nameless | 15 | 990 | |
| 1977-08-23 00:00:00 | 30.1°N | 125.3°E | Nameless | 15 | 990 | |
| 1977-08-23 06:00:00 | 31.2°N | 126.4°E | Nameless | 17 | 985 | |
| 1977-08-23 12:00:00 | 31.7°N | 127.5°E | Tropical Storm | 20 | 985 | |
| 1977-08-23 18:00:00 | 31.7°N | 128.9°E | Tropical Storm | 20 | 985 |
Typhoon Amy's international code is 197707, is the 7th Typhoon of 1977, international name AMY.
Typhoon Amy peak intensity is Tropical Storm, max wind 20m/s, minimum central pressure 985 hPa.
According to records, Typhoon Amy is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Amy's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197707.
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