The SummaryTyphoon Dinah (international code 197406) is a 1974 Northwest Pacific typhoon; peak intensity Typhoon, max wind 35m/s, minimum central pressure 965hPa, not in China Landfall, 1974-06-14 was numbered off, recorded 32 track points.
Typhoon Dinah, international code 197406, international name DINAH, 1974 Northwest Pacific typhoon. Formed: 1974-06-07 00:00:00, ended: 1974-06-14 18:00:00. Peak intensity: Typhoon , minimum central pressure: 965 hPa, max wind: 35m/s.
Typhoon Dinah at 1974-06-07 00:00:00 at 12°N, 135.6°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Typhoon intensity with max winds of 35 m/s (~126 km/h) and a minimum central pressure of 965hPa, recorded at 1974-06-09 18:00:00.
1974-06-14 18:00:00 After, Typhoon Dinah gradually weakened and was numbered off on 1974-06-14 18:00:00 was numbered off; its lifecycle recorded 32 track points.
Typhoon Dinah (197406) 的生命史始 at Northwest Pacific洋面, 整体呈现稳定的WNMovingTrend. formed初期 (6月7日) , 系统位 at 12°N, 135.6°E附近, 随后迅速 toward W穿越Philippines群岛以E海域. 从坐标序列分析, 该Typhoon 在6月7日至6月10日期间, The latitude由12°N缓慢N抬至15.4°N, During则从135.6°E快速W移至122.3°E, 显示出较强的W风引导气流作用.
During June 11 00:00 to 12:00, the Typhoon center latitude remains unchanged at 16.5°N, while the length continues to W shift, indicating that at this time the system is dominated by the sub-tropical high-pressure S side of the E air flow, showing a correct W Moving path. After June 12th, as the latitude again N rises to 21°N, the path gradually turns toward NW direction, finally at June 14th 18:00 at 103°E near the weakened dispersion.
Dinah的Intensity变化经历了“快速增强—波动维持—逐渐减弱”三个阶段. 6月7日为Nameless (15m/s) , 仅用不到两天Time, at 6月9日12:00 intensified into Typhoon (33m/s) , 并 at 6月10日00:00达到peak intensity, max wind 35m/s. 值得注意的是, 其在6月10日12:00曾短暂 weakened into Severe Tropical Storm (25m/s) , 但随后在6月11日12:00至6月12日12:00期间重新加强并维持在Typhoon 级别 (33-35m/s) , 显示出在S海海域具备二次增强的能力. 6月13日起, 系统开始持续减弱, 最终降格为Nameless.
与历届同名Typhoon 相比, 1974年Dinah的Intensity显著偏弱. 数据显示, 1987年, 1980年及1967年的Dinah均达到“Super Typhoon”级别, 1977年Dinah亦为“Typhoon ”级. 相比之下, 1974年Dinah巅峰仅为普通Typhoon 等级 (35m/s) , 且生命史较短 (约7.75天) , track points仅32个, 属 at 中等偏弱的热带气旋过程.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1974-06-07 00:00:00 | 12°N | 135.6°E | Nameless | 15 | 1000 | |
| 1974-06-07 12:00:00 | 12.6°N | 132.4°E | Nameless | 17 | 996 | |
| 1974-06-08 00:00:00 | 12.9°N | 128.7°E | Tropical Storm | 20 | 992 | |
| 1974-06-08 12:00:00 | 13.6°N | 126.7°E | Severe Tropical Storm | 25 | 985 | |
| 1974-06-09 00:00:00 | 14.3°N | 125.1°E | Severe Tropical Storm | 28 | 990 | |
| 1974-06-09 12:00:00 | 14.6°N | 123.5°E | Typhoon | 33 | 985 | |
| 1974-06-10 00:00:00 | 15.4°N | 122.3°E | Typhoon | 35 | 975 | |
| 1974-06-10 12:00:00 | 16.5°N | 119.8°E | Severe Tropical Storm | 25 | 980 | |
| 1974-06-11 00:00:00 | 16.5°N | 117.7°E | Severe Tropical Storm | 28 | 985 | |
| 1974-06-11 12:00:00 | 16.5°N | 115.8°E | Typhoon | 33 | 980 | |
| 1974-06-12 00:00:00 | 17.4°N | 114.2°E | Typhoon | 35 | 970 | |
| 1974-06-12 12:00:00 | 18.8°N | 112.7°E | Typhoon | 35 | 965 | |
| 1974-06-13 00:00:00 | 19.8°N | 110.4°E | Severe Tropical Storm | 30 | 980 | |
| 1974-06-13 12:00:00 | 20°N | 107.8°E | Severe Tropical Storm | 25 | 984 | |
| 1974-06-14 00:00:00 | 20.1°N | 105.4°E | Nameless | 15 | 988 | |
| 1974-06-14 12:00:00 | 20.6°N | 103.9°E | Nameless | 10 | 994 | |
| 1974-06-14 18:00:00 | 21°N | 103°E | Nameless | 10 | 996 |
Sampled rows shown; all 32 track points are available on the interactive map or via the public API .
Typhoon Dinah's international code is 197406, which is the 6th Typhoon of 1974, international name DINAH.
Typhoon Dinah peak intensity is Typhoon , max wind 35m/s, minimum central pressure 965 hPa.
According to records, Typhoon Dinah is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Dinah's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197406.
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