The SummaryTyphoon Joan (international code 197310) is a 1973 Northwest Pacific typhoon; peak intensity Tropical Storm, max wind 23m/s, minimum central pressure 992hPa, Landfall, 1973-08-22 was numbered off, recording 24 track points.
Typhoon Joan, international code 197310, international name JOAN, 1973 Northwest Pacific typhoon. Formed: 1973-08-17 00:00:00, ended: 1973-08-22 18:00:00. Peak intensity: Tropical Storm, minimum central pressure: 992 hPa, max wind: 23m/s.
Typhoon Joan at 1973-08-17 00:00:00 at 20.1°N, 133.9°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Tropical Storm intensity with max winds of 23 m/s (~83 km/h) and a minimum central pressure of 992hPa, recorded at 1973-08-19 12:00:00.
1973-08-22 18:00:00 After, Typhoon Joan gradually weakened and was numbered off on 1973-08-22 18:00:00 was numbered off; its lifecycle recorded 24 track points.
Typhoon Joan (197310)'s life began at the Northwest Pacific surface, presenting overall a stable W toward MovingTrend, with no apparent N upward toward or Landfall behavior. From the formed initial coordinate sequence analysis, the system at August 17 at 00 am at 20.1°N, 133.9°E formed near, then continued toward WS. During August 17 to 18, its latitude fluctuated slightly between 19.2°N to 20.1°N, and the length moved from 133.9°E quickly to 128°E, showing a stronger latitude toward guiding flow.
Go to August 19th, the system path showed slight signs of N, latitude rising to 21.7°N, then reversed to W line and accompanied by the weak S falling trend. Until August 22th, its Center alwaysined within the narrow latitude band of 20°N to 21.7°N, and eventually at 19.8°N, 101.7°E weakened the Stop record.
In terms of Intensity changes, Typhoon Joan showed a typical 'weak life weakening' characteristic. The initial stage is Nameless, max windined at 15m/s. With toward WMoving, the system reached the peak intensity in life history on August 19 at 12th, upgraded to Tropical Storm, max wind increased to 23m/s. However, this high Intensity stateined Time extremely short, after only 12h (August 20: 00) was quickly returned to the Nameless level, wind speed dropped back to 15m/s. After that, the system Intensity gradually decreased, from 15m/s gradually to 12m/s, and finally stabilized at 10m/s until dispersed.
Historical records show that in 1997, the same name Typhoon reached the Super Typhoon level in 1970, and the same name Typhoon reached the Typhoon level in 1964 and 1962. in comparison, in 1973, Joan only reached the Tropical Storm level, and the peak wind speed was only 23m/s, being at one of the weakest instances of Intensity in the naming series, reflecting huge differences in the atmospheric background for the development potential of the same name Typhoon.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1973-08-17 00:00:00 | 20.1°N | 133.9°E | Nameless | 15 | 1004 | |
| 1973-08-17 12:00:00 | 19.6°N | 132.4°E | Nameless | 15 | 1002 | |
| 1973-08-18 00:00:00 | 19.2°N | 130.6°E | Nameless | 15 | 1002 | |
| 1973-08-18 12:00:00 | 19.8°N | 128°E | Nameless | 15 | 1002 | |
| 1973-08-19 00:00:00 | 21.4°N | 125.5°E | Nameless | 17 | 998 | |
| 1973-08-19 12:00:00 | 21.7°N | 123.5°E | Tropical Storm | 23 | 994 | |
| 1973-08-20 00:00:00 | 21.5°N | 121.3°E | Nameless | 15 | 994 | |
| 1973-08-20 12:00:00 | 21.3°N | 117.4°E | Nameless | 15 | 998 | |
| 1973-08-21 00:00:00 | 21.5°N | 113.5°E | Nameless | 12 | 998 | |
| 1973-08-21 12:00:00 | 21.3°N | 111.4°E | Nameless | 10 | 998 | |
| 1973-08-22 00:00:00 | 20.6°N | 109.3°E | Nameless | 10 | 998 | |
| 1973-08-22 12:00:00 | 20°N | 104.2°E | Nameless | 10 | 995 | |
| 1973-08-22 18:00:00 | 19.8°N | 101.7°E | Nameless | 10 | - |
Sampled rows shown; all 24 track points are available on the interactive map or via the public API .
Typhoon Joan's international code is 197310, is 1973 number 10 Typhoon, international name JOAN.
Typhoon Joan peak intensity is Tropical Storm, max wind 23m/s, minimum central pressure 992 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/197310.
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