The SummaryTyphoon Fran (international code 197306) is a 1973 Northwest Pacific typhoon; peak intensity Tropical Storm, max wind 20m/s, minimum central pressure 1000hPa, not in China Landfall, 1973-07-30 was numbered off, recording 13 track points.
Typhoon Fran, international code 197306, international name FRAN, 1973 Northwest Pacific typhoon. Formed: 1973-07-27 00:00:00, ended: 1973-07-30 00:00:00. Peak intensity: Tropical Storm, minimum central pressure: 1000 hPa, max wind: 20m/s.
Typhoon Fran at 1973-07-27 00:00:00 at 16.1°N, 133.3°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Tropical Storm intensity with max winds of 20 m/s (~72 km/h) and a minimum central pressure of 1000hPa, recorded at 1973-07-29 06:00:00.
1973-07-30 00:00:00 After, Typhoon Fran gradually weakened and was numbered off on 1973-07-30 00:00:00 was numbered off; its lifecycle recorded 13 track points.
Typhoon Fran (197306) has a short life history, from formed to dispersed only about three days. Observation data show that the system at 27 July 1973 at 00:00 on the Northwest Pacific surface (16.1°N, 133.3°E) was originally nameless. Over the entire life cycle, its Moving path showed a stable WNW toward, then gradually turned to NW direction. In particular, between 27 July and 28 July, the Typhoon center latitude moved from 16.1°N slowly to 17.1°N, gradually from 133.3°E rapidly into 128.2°E, showing a stronger toward W score. Go to 29th, as the latitude further increased to 21.6°N, the latitude slowed and swung between 122.5°E to 122.9°E, the climbing system showed
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Nameless, 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.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1973-07-27 00:00:00 | 16.1°N | 133.3°E | Nameless | 12 | 1008 | |
| 1973-07-27 06:00:00 | 16.7°N | 132.5°E | Nameless | 12 | 1006 | |
| 1973-07-27 12:00:00 | 17°N | 131.1°E | Nameless | 12 | 1006 | |
| 1973-07-27 18:00:00 | 17.1°N | 129.8°E | Nameless | 15 | 1006 | |
| 1973-07-28 00:00:00 | 17.1°N | 128.2°E | Nameless | 15 | 1006 | |
| 1973-07-28 06:00:00 | 17.2°N | 127.3°E | Nameless | 15 | 1004 | |
| 1973-07-28 12:00:00 | 17.8°N | 126.1°E | Nameless | 15 | 1004 | |
| 1973-07-28 18:00:00 | 18.2°N | 125°E | Nameless | 15 | 1002 | |
| 1973-07-29 00:00:00 | 18.9°N | 124°E | Nameless | 17 | 1002 | |
| 1973-07-29 06:00:00 | 19.2°N | 123.3°E | Tropical Storm | 20 | 1000 | |
| 1973-07-29 12:00:00 | 19.8°N | 122.5°E | Nameless | 17 | 1005 | |
| 1973-07-29 18:00:00 | 20.8°N | 122.6°E | Nameless | 15 | 1005 | |
| 1973-07-30 00:00:00 | 21.6°N | 122.9°E | Nameless | 12 | 1006 |
Typhoon Fran's international code is 197306, is 1973's 6th Typhoon, international name FRAN.
Typhoon Fran peak intensity is Tropical Storm, max wind 20m/s, minimum central pressure 1000 hPa.
According to records, Typhoon Fran is not in our coastal landfall.
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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Weather data: NASA GIBS / OpenWeatherMap / Open-Meteo / NOAA WW3, for reference only
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