The SummaryTyphoon Mac (international code 197913) is a 1979 Northwest Pacific typhoon; peak intensity Typhoon, max wind 35m/s, minimum central pressure 985hPa, not in China Landfall, 1979-09-24 was numbered off, recorded 45 track points.
Typhoon Mac, international code 197913, international name MAC, 1979 Northwest Pacific typhoon. Formed: 1979-09-13 00:00:00, ended: 1979-09-24 00:00:00. Peak intensity: Typhoon , minimum central pressure: 985 hPa, max wind: 35m/s.
Typhoon Mac at 1979-09-13 00:00:00 at 12°N, 139°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 985hPa, recorded at 1979-09-17 00:00:00.
Typhoon Mac gradually weakened and was numbered off on 1979-09-24 00:00:00 was numbered off; its lifecycle recorded 45 track points.
Typhoon Mac (197913) 的生命周期始 at 1979年9月13日00时, formedPosition位 at lat 12°N, 139°附近的Nameless区. 在初始阶段, 系统呈现稳定的W toward MovingTrend, 从lng 139°持续 toward W推进至lng 125°附近, The latitude基本维持在11.8°N至13.8°N之间, 表明其主要受低层E风气流引导. 9月16日至17日期间, 系统在接近lng 125°时达到生命史中的最W端, 随后路径出现显著转折. 自9月18日起, Typhoon 转 toward NW, 并逐渐 toward N偏移, 最终 at 9月24日00时 at 22.5°N, 112.9°附近减弱消散. 整个路径跨度较大, 从热带洋面深入至大陆边缘海域, 全程未记录到Landfall行为, 属 at 典型的近海转 toward 或减弱型路径.
该Typhoon 的Intensity变化呈现出“快速增强-短暂维持-持续减弱”的特征. 初始阶段为Nameless, wind speed维持在7m/s. 9月16日00时, 系统迅速 intensified into Tropical Storm (20m/s) , 并在同日18时进一步爆发增强为Typhoon intensity with max winds of 达到33m/s. 9月17日12时, 其Intensity维持在33m/s, 这也是观测数据中的peak intensity (注: 基础信息提及Max Wind35m/s, 但路径采样中最高记录为33m/s, 此处以采样极值为准进行Trend分析) . 然而, Typhoon 状态仅维持了约一天半的Time. 自9月18日06时起, 系统开始 weakened into Severe Tropical Storm (25m/s) , 随后在9月19日降格为Tropical Storm, 并 at 同日傍晚进一步 weakened into Nameless. 此后直至消散, 其Intensity始终维持在Nameless或弱Tropical Storm水平 (12m/s-20m/s) , 显示出Go to 较高The latitude或受环境场不利因素影响后, 结构迅速崩溃的过程.
Compared to the 1990 Mac (199025), the latter had reached the Super Typhoon level, intensity far exceeding the 1979 version; compared to the 1989 Mac (198914) compared, both peak intensity was typhoon level, but the 1979 Mac's life is longer and path more N. Compared to the 1986 only for Tropical StormIntensity Mac (198604) , the 1979 Mac has a more complete typhoon life cycle.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1979-09-13 00:00:00 | 12°N | 139°E | Nameless | 7 | 1008 | |
| 1979-09-13 18:00:00 | 11.9°N | 137.3°E | Nameless | 7 | 1008 | |
| 1979-09-14 12:00:00 | 11.8°N | 134.8°E | Nameless | 7 | 1006 | |
| 1979-09-15 06:00:00 | 12.7°N | 131.8°E | Nameless | 7 | 1004 | |
| 1979-09-16 00:00:00 | 13.5°N | 129°E | Tropical Storm | 20 | 998 | |
| 1979-09-16 18:00:00 | 13.7°N | 126.7°E | Typhoon | 33 | 992 | |
| 1979-09-17 12:00:00 | 13.8°N | 125.2°E | Typhoon | 33 | 992 | |
| 1979-09-18 06:00:00 | 13.6°N | 123.3°E | Severe Tropical Storm | 25 | 985 | |
| 1979-09-19 00:00:00 | 13.9°N | 121.4°E | Tropical Storm | 20 | 994 | |
| 1979-09-19 18:00:00 | 15.5°N | 119.8°E | Nameless | 17 | 1004 | |
| 1979-09-20 12:00:00 | 17.6°N | 118.6°E | Nameless | 17 | 1002 | |
| 1979-09-21 06:00:00 | 19°N | 117.9°E | Nameless | 17 | 998 | |
| 1979-09-22 00:00:00 | 20.5°N | 116.4°E | Tropical Storm | 20 | 1000 | |
| 1979-09-22 18:00:00 | 21.2°N | 115°E | Nameless | 17 | 1000 | |
| 1979-09-23 12:00:00 | 22°N | 113°E | Nameless | 17 | 996 | |
| 1979-09-24 00:00:00 | 22.5°N | 112.9°E | Nameless | 12 | 1000 |
Sampled rows shown; all 45 track points are available on the interactive map or via the public API .
Typhoon Mac's international code is 197913, is the 13th Typhoon of 1979, international name MAC.
Typhoon Mac peak intensity is Typhoon , max wind 35m/s, minimum central pressure 985 hPa.
According to records, the Typhoon Mac is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Mac's Track history map, multinational meteorological agency Forecast comparison, windshield range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197913.
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