Typhoon Fran Trail Characteristics
Track and Movement Characteristics
Typhoon Fran (197306) 的生命史较短, 从 formed到消散仅持续约三天. 观测数据显示, 该系统 at 1973年7月27日00时在Northwest Pacific洋面 (16.1°N, 133.3°E) 初生为Tropical Depression. 在整个生命周期内, 其Moving路径呈现出稳定的WNW走 toward , 随后逐渐转为NW direction. 具体而言, 7月27日至28日期间, Typhoon 中心纬度从16.1°N缓慢N移至17.1°N, 经度则由133.3°E快速W进至128.2°E, 显示出较强的 toward W分量. Go to 29日后, 随着纬度进一步N抬至21.6°N, 经度变化趋缓并在122.5°E至122.9°E之间徘徊, 表明系统在接近lng 123度附近时Moving速度减慢并略有转 toward 迹象. 值得注意的是, 该Typhoon 全程在海上活动, 无Landfall记录, 最终 at 7月30日00时在 (21.6°N, 122.9°E) 维持Tropical DepressionIntensity后结束观测.
Intensity evolution and historical comparison
在Intensity变化方面, Typhoon Fran整体结构较为松散, peak intensity 仅为Tropical Storm级别. 系统初期维持12m/s的wind speed长达18h, 直至7月27日18时才增强至15m/s. 此后wind speed在15m/s至17m/s之间波动, 直到7月29日06时达到生命史中的峰值, max wind 为20m/s, 正式升级为Tropical Storm. 然而, 这一高Intensity状态极为短暂, 仅维持6h后, at 同日12时便减弱回17m/s的Tropical Depression, 随后持续衰减至消散时的12m/s. 由 at 气压数据缺失, 仅能依据wind speed判断其Intensity等级较低.
For example, the 1976 Fran (197617) developed into a peak Super Typhoon, the 1970 (197010) and the 1967 (196706) Fran also reached the Severe Tropical Storm level.
Typhoon Fran route data
| Time | Position | Intensity | Wind · Pressure | Moving Toward |
|---|
| 07-24 20:00 | 11.6°N
138°E | Tropical Depression | - m/s
1008 hPa | - |
| 07-25 08:00 | 12.1°N
136.8°E | Tropical Depression | - m/s
1008 hPa | NW |
| 07-25 20:00 | 12.7°N
136.2°E | Tropical Depression | - m/s
1008 hPa | NNW |
| 07-26 08:00 | 13.5°N
135.6°E | Tropical Depression | - m/s
1008 hPa | NW |
| 07-26 20:00 | 14.5°N
134.5°E | Tropical Depression | - m/s
1008 hPa | NW |
| 07-27 08:00 | 15.9°N
132.8°E | Tropical Depression | - m/s
1008 hPa | NW |
| 07-27 20:00 | 17.1°N
130.9°E | Tropical Depression | 10 m/s
1006 hPa | WNW |
| 07-28 08:00 | 18.2°N
128.5°E | Tropical Depression | 12 m/s
1006 hPa | WNW |
| 07-28 20:00 | 18.9°N
125.8°E | Tropical Depression | 15 m/s
1004 hPa | WNW |
| 07-29 08:00 | 19.2°N
123.5°E | Tropical Depression | 15 m/s
1000 hPa | W |
| 07-29 20:00 | 19.3°N
122.8°E | Tropical Storm | 20 m/s
1004 hPa | WNW |
| 07-30 08:00 | 20.7°N
122.1°E | Tropical Depression | 12 m/s
1004 hPa | N |
| 07-30 20:00 | 23.1°N
124°E | Tropical Depression | 15 m/s
1000 hPa | NNE |
| 07-31 08:00 | 25.4°N
125.8°E | Tropical Depression | 10 m/s
1006 hPa | NE |
| 07-31 14:00 | 26.2°N
126.7°E | Tropical Depression | 10 m/s
1006 hPa | NE |
Sampled rows shown; all 28 track points are available on the interactive map or via the public API .
FAQ
Typhoon Fran was the 1973 Typhoon.
Typhoon Fran's international code is 197306, is 1973's 6th Typhoon, international name FRAN.
What is the highest level of Typhoon Fran?
Typhoon Fran peak intensity is Tropical Storm, max wind 20m/s, minimum central pressure 1000 hPa.
Is the Typhoon FranLandfall?
According to records, Typhoon Fran is not in our coastal landfall.
Where can I view typhoon Fran's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Fran's Track history map, multinational weather agency Forecast comparison, wind circle range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197306.
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