The SummaryTyphoon Iris (international code 197012) is a 1970 Northwest Pacific typhoon; peak intensity Super Typhoon, max wind 51m/s, minimum central pressure 960hPa, not in China Landfall, 1970-10-08 was numbered off, recording 17 track points.
Typhoon Iris, international code 197012, international name IRIS, 1970 Northwest Pacific typhoon. Formed: 1970-10-04 00:00:00, ended: 1970-10-08 00:00:00. Peak intensity: Super Typhoon, minimum central pressure: 960 hPa, max wind: 51m/s.
Typhoon Iris at 1970-10-04 00:00:00 at 15.4°N, 111°E over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Super Typhoon intensity with max winds of 51 m/s (~184 km/h) and a minimum central pressure of 960hPa, recorded at 1970-10-06 12:00:00.
Typhoon Iris gradually weakened and was numbered off on 1970-10-08 00:00:00 was numbered off; its lifecycle recorded 17 track points.
Typhoon Iris (197012) 的生命史始 at 1970年10月4日00时, formedPosition位 at lat 15.4°N, 111°附近海域. 在整个生命周期内, 该Typhoon 呈现出稳定且持续的NE toward MovingTrend, 未出现明显的路径转折或停滞现象. 从经The latitude坐标序列分析, Typhoon 中心始终维持 toward N及 toward E的分量Moving, 纬度从初始的15.4°N逐步攀升至终结时的21.3°N, During则由111°E延伸至115.6°E. 这种平滑的Moving轨迹表明其受引导气流影响较为单一且稳定. 值得注意的是, 尽管Typhoon 在海上活动长达4天, 但根据观测记录, 其全程无Landfall记录, 最终 at 10月8日00时 at 21.3°N, 115.6°附近 weakened into Tropical Storm后结束监测.
Iris的Intensity变化具有典型的“快速增强-巅峰维持-逐渐减弱”特征. formed初期为Tropical Storm (23m/s) , 随后在10月4日至5日期间稳步加强, 先后经历Severe Tropical Storm阶段, 并 at 10月5日00时升级为Typhoon (33m/s) . Go to 10月6日, Typhoon Intensity出现爆发式增长, 从00时的Severe Typhoon (43m/s) 迅速提升至12时的巅峰状态, 达到Super Typhoon intensity with max winds of 录得51m/s. 巅峰期短暂维持后, 自10月6日18时起, Typhoon 开始Go to 减弱通道, intensity 由Severe Typhoon (46m/s) 逐级下调. 至10月7日18时, 其降级为Severe Tropical Storm (28m/s) , 并在生命末期进一步 weakened into Tropical Storm (20m/s) . 整个增强过程耗时约2.5天, 而减弱过程相对平缓, 历时约1.5天.
In 1976 Iris (197619) peak intensity is only typhoon level, 1973 Iris (197308) Severe Typhoon level, and 1964 Iris (196426) only typhoon level. In comparison, 1970 Iris reached Super Typhoon intensity with max winds of 51m/s, is the highest in the same name Typhoon listed Intensity one. Even with the 1967 peak only Tropical Storm Iris (196710), its energy level also has a huge difference.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1970-10-04 00:00:00 | 15.4°N | 111°E | Tropical Storm | 23 | 990 | |
| 1970-10-04 06:00:00 | 15.6°N | 111.4°E | Severe Tropical Storm | 25 | 990 | |
| 1970-10-04 12:00:00 | 16°N | 111.8°E | Severe Tropical Storm | 28 | 990 | |
| 1970-10-04 18:00:00 | 16.4°N | 112.2°E | Severe Tropical Storm | 28 | 990 | |
| 1970-10-05 00:00:00 | 17°N | 112.5°E | Typhoon | 33 | 980 | |
| 1970-10-05 06:00:00 | 17.5°N | 112.7°E | Typhoon | 35 | 975 | |
| 1970-10-05 12:00:00 | 18°N | 112.9°E | Typhoon | 38 | 970 | |
| 1970-10-05 18:00:00 | 18.6°N | 113°E | Typhoon | 38 | 965 | |
| 1970-10-06 00:00:00 | 19.3°N | 113.3°E | Severe Typhoon | 43 | 965 | |
| 1970-10-06 06:00:00 | 19.8°N | 113.8°E | Severe Typhoon | 46 | 960 | |
| 1970-10-06 12:00:00 | 20°N | 113.9°E | Super Typhoon | 51 | 965 | |
| 1970-10-06 18:00:00 | 20.3°N | 114.1°E | Severe Typhoon | 46 | 970 | |
| 1970-10-07 00:00:00 | 20.6°N | 114.4°E | Typhoon | 41 | 975 | |
| 1970-10-07 06:00:00 | 20.8°N | 114.7°E | Typhoon | 38 | 980 | |
| 1970-10-07 12:00:00 | 21°N | 115°E | Typhoon | 33 | 980 | |
| 1970-10-07 18:00:00 | 21.1°N | 115.3°E | Severe Tropical Storm | 28 | 990 | |
| 1970-10-08 00:00:00 | 21.3°N | 115.6°E | Tropical Storm | 20 | 992 |
The international code for Typhoon Iris is 197012, typhoon number 12, and the international name is IRIS.
Typhoon Iris peak intensity is Super Typhoon, max wind 51m/s, minimum central pressure 960 hPa.
According to records, Typhoon Iris is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Iris' Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197012.
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