The SummaryTyphoon Joan (international code 197013) is a 1970 Northwest Pacific typhoon; peak intensity Super Typhoon, max wind 77m/s, minimum central pressure 905hPa, not in China Landfall, 1970-10-18 was numbered off, recording 33 track points.
Typhoon Joan, international code 197013, international name JOAN, 1970 Northwest Pacific typhoon. Formed: 1970-10-10 00:00:00, ended: 1970-10-18 00:00:00. Peak intensity: Super Typhoon, minimum central pressure: 905 hPa, max wind: 77m/s.
Typhoon Joan at 1970-10-10 00:00:00 at 9.5°N, 140.7°E over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Super Typhoon intensity with max winds of 77 m/s (~277 km/h) and a minimum central pressure of 905hPa, recorded at 1970-10-13 00:00:00.
1970-10-18 00:00:00 After, Typhoon Joan gradually weakened and was numbered off on 1970-10-18 00:00:00 was numbered off; its lifecycle recorded 33 track points.
Typhoon Joan (197013) 的生命史始 at 1970年10月10日00时, formedPosition位 at lat 9.5°N, 140.7°的热带洋面. 在初始阶段, 系统呈现稳定的NW toward MovingTrend. 从10月10日至10月13日期间, Typhoon 中心The latitude由9.5°N缓慢N移至13.8°N, During则由140.7°E快速W进至122.4°E, 显示出强烈的W行分量. 10月13日12时至10月14日12时, 路径出现显著转折, 纬度维持在14.5°N附近, 而经度继续W移, 表明此时系统主要受引导气流影响进行纯W toward Moving.
From October 16 to October 18, the system accelerated toward N propulsion, the latitude rapidly jumping from 16.4°N to 21.1°N, the length changes relatively slowed, and finally at October 18 at 00 am in the sea N's waters weakened into Nameless.
Joan的Intensity变化呈现出“快速增强—剧烈波动—二次巅峰—持续减弱”的特征. formed初期仅为Tropical Storm (23m/s) , 但在48h内迅速加强, at 10月12日00时达到Super Typhoon级别 (53m/s) . 其peak intensity出现在10月13日00时, max wind 高达77m/s, 确认为Super Typhoon等级. 值得注意的是, 巅峰过后Intensity并未单调递减, 而是在10月13日12时短暂减弱后, at 10月16日00时再次加强至Super Typhoon级别 (51m/s) , 显示出其在S海海域具备良好的能量维持机制. 随后, 系统自10月16日12时起Go to 不可逆的减弱通道, 直至消散.
In comparison with the same-name Typhoon, the intensity performance of Joan in 1970 was extremely prominent. Compared with Joan in 1973 (top only Tropical Storm) and Joan in 1962, 1964 (top as Typhoon), Joan reached the Super Typhoon level in 1970. Although Joan in 1997 was also recorded as Super Typhoon, Joan in 1970 with a 77m/s Max Wind showed tremendous destruction potential.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1970-10-10 00:00:00 | 9.5°N | 140.7°E | Tropical Storm | 23 | 998 | |
| 1970-10-10 12:00:00 | 10.7°N | 137.3°E | Severe Tropical Storm | 28 | 990 | |
| 1970-10-11 00:00:00 | 11°N | 133.5°E | Severe Tropical Storm | 30 | 985 | |
| 1970-10-11 12:00:00 | 11.6°N | 130.3°E | Typhoon | 41 | 975 | |
| 1970-10-12 00:00:00 | 11.4°N | 128°E | Super Typhoon | 53 | 950 | |
| 1970-10-12 12:00:00 | 12.2°N | 126.7°E | Super Typhoon | 66 | 920 | |
| 1970-10-13 00:00:00 | 13.3°N | 124.7°E | Super Typhoon | 77 | 910 | |
| 1970-10-13 12:00:00 | 13.8°N | 122.4°E | Severe Typhoon | 46 | 945 | |
| 1970-10-14 00:00:00 | 14.5°N | 120.4°E | Typhoon | 38 | 970 | |
| 1970-10-14 12:00:00 | 14.5°N | 117.8°E | Severe Typhoon | 43 | 970 | |
| 1970-10-15 00:00:00 | 14.9°N | 115.9°E | Severe Typhoon | 48 | 965 | |
| 1970-10-15 12:00:00 | 15.3°N | 114.7°E | Severe Typhoon | 48 | 960 | |
| 1970-10-16 00:00:00 | 16.4°N | 113°E | Super Typhoon | 51 | 950 | |
| 1970-10-16 12:00:00 | 18.4°N | 111.9°E | Typhoon | 41 | 960 | |
| 1970-10-17 00:00:00 | 19.7°N | 111°E | Typhoon | 33 | 965 | |
| 1970-10-17 12:00:00 | 20.4°N | 110.2°E | Tropical Storm | 23 | 985 | |
| 1970-10-18 00:00:00 | 21.1°N | 110°E | Nameless | 17 | 1000 |
Sampled rows shown; all 33 track points are available on the interactive map or via the public API .
Typhoon Joan's international code is 197013, is 1970's 13th Typhoon, international name JOAN.
Typhoon Joan peak intensity is Super Typhoon, max wind 77m/s, minimum central pressure 905 hPa.
According to records, Typhoon Joan is not in our coastal Landfall.
TyphoonSays (taifengshuo.com) provides typhoon Joan's Track history map, multinational meteorological agency Forecast comparison, windshield range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197013.
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