The SummaryTyphoon Ivy (international code 197411) is a 1974 Northwest Pacific typhoon; peak intensity Severe Typhoon, max wind 48m/s, minimum central pressure 950hPa, not in China Landfall, 1974-07-24 was numbered off, recording 33 track points.
Typhoon Ivy, international code 197411, international name IVY, 1974 Northwest Pacific typhoon. Formed: 1974-07-16 00:00:00, ended: 1974-07-24 00:00:00. Peak intensity: Severe Typhoon, minimum central pressure: 950 hPa, max wind: 48m/s.
Typhoon Ivy at 1974-07-16 00:00:00 at 11.2°N, 146.9°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Severe Typhoon intensity with max winds of 48 m/s (~173 km/h) and a minimum central pressure of 950hPa, recorded at 1974-07-22 06:00:00.
Typhoon Ivy gradually weakened and was numbered off on 1974-07-24 00:00:00 was numbered off; its lifecycle recorded 33 track points.
Typhoon Ivy (197411) formed at Northwest Pacific远洋海域, 初始Position位 at lat 11.2°N, 146.9°. 在整个生命史中, 该Typhoon 呈现出稳定且持续的NW toward MovingTrend, 未出现明显的路径转折或停滞现象. 从7月16日至7月24日, 其中心坐标由lng 146.9°持续W移至lng 106.2°, The latitude由lat 11.2°N抬至lat 25.6°, 横跨During超过40度, 显示出较强的引导气流作用. 尽管路径整体平滑, 但在接近S海N部及Vietnamcoastal 区域时, Moving速度略有变化, 最终在深入内陆后减弱消散. 值得注意的是, 根据观测记录, 该Typhoon 全程无Landfall记录, 其主要影响范围集中在海上及周边coastal area, 未直接跨越海岸线造成陆地Landfall事件.
Ivy的Intensity演变经历了典型的“快速增强—维持—波动减弱”过程. formed初期为Nameless, wind speed12m/s. 在 toward WMoving过程中, 系统迅速组织发展, at 7月18日凌晨 intensified into Tropical Storm, 随后在24h内接连升级为Severe Tropical Storm和Typhoon . 7月19日中午, 其Max Wind达到46m/s, 首次达到Severe Typhoon级别, 并 at 7月20日凌晨维持该Intensity. 然而, Go to S海后Intensity出现显著波动: 7月20日中午迅速 weakened into Severe Tropical Storm (30m/s) , 但次日又再次增强, at 7月22日凌晨二度达到Severe Typhoon峰值 (46m/s) . 这种Intensity的反复震荡可能与海温分布或垂直风切变的变化有关. 此后, 系统不可逆地减弱, at 7月23日降格为Nameless, 直至消亡. 巅峰Max Wind录得48m/s, 体现了其较强的爆发力.
In the sequence of names 'Ivy', the 1974 Typhoon performance is strong. Compared with the 1971 Typehoon Ivy 11th (top only to Severe Tropical Storm), the 1974 Ivy's Intensity is significantly higher, reaching the Severe Typhoon level. Compared with the 1965 Typehoon Ivy 11th (top for Typhoon), the 1974 Ivy is also more successful in Intensity. Although the 1977 Typehoon Ivy 15th also reached the Severe Typhoon level, but in the current data, the 1974 Ivy thanks to 48m/sMax Wind and two times to the Severe Typhoon standard lasting performance, in the history of the same Typehoon at Intensity 1st Stage member, showed the high characteristics of Typhoon activity under the name.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1974-07-16 00:00:00 | 11.2°N | 146.9°E | Nameless | 12 | - | |
| 1974-07-16 12:00:00 | 11.3°N | 143.9°E | Nameless | 12 | - | |
| 1974-07-17 00:00:00 | 11.4°N | 140.8°E | Nameless | 12 | - | |
| 1974-07-17 12:00:00 | 12.3°N | 137.7°E | Nameless | 15 | 1002 | |
| 1974-07-18 00:00:00 | 13.3°N | 134.1°E | Tropical Storm | 23 | 996 | |
| 1974-07-18 12:00:00 | 14.1°N | 130.9°E | Severe Tropical Storm | 30 | 985 | |
| 1974-07-19 00:00:00 | 14.7°N | 127.8°E | Typhoon | 38 | 965 | |
| 1974-07-19 12:00:00 | 15°N | 125.1°E | Severe Typhoon | 46 | 950 | |
| 1974-07-20 00:00:00 | 15.5°N | 122°E | Severe Typhoon | 46 | 955 | |
| 1974-07-20 12:00:00 | 16.7°N | 119.3°E | Severe Tropical Storm | 30 | 965 | |
| 1974-07-21 00:00:00 | 17.8°N | 116.7°E | Typhoon | 35 | 975 | |
| 1974-07-21 12:00:00 | 19°N | 114.5°E | Typhoon | 41 | 965 | |
| 1974-07-22 00:00:00 | 20.1°N | 112.9°E | Severe Typhoon | 46 | 965 | |
| 1974-07-22 12:00:00 | 21.6°N | 111.3°E | Severe Tropical Storm | 30 | 980 | |
| 1974-07-23 00:00:00 | 23°N | 109.8°E | Nameless | 17 | 998 | |
| 1974-07-23 12:00:00 | 23.9°N | 107°E | Nameless | 12 | 1000 | |
| 1974-07-24 00:00:00 | 25.6°N | 106.2°E | Nameless | 10 | 1002 |
Sampled rows shown; all 33 track points are available on the interactive map or via the public API .
Typhoon Ivy's international code is 197411, is 1974's 11th Typhoon, international name IVY.
Typhoon Ivy peak intensity is Severe Typhoon, max wind 48m/s, minimum central pressure 950 hPa.
According to records, Typhoon Ivy is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Ivy's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197411.
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