[Quick Archive Overview]Typhoon Joan (No.197310, a historical number from before 1981) was a 1973 Northwest Pacific typhoon. It peaked as a severe tropical storm, with maximum winds of 30 m/s and a minimum central pressure of 980 hPa. It did not make landfall in China, was numbered off on 1973-08-23, and has 33 recorded track points throughout its lifetime.
Numbering note: The internationally unified numbering system for the Northwest Pacific has been assigned by JMA (Japan), a regional specialized meteorological center, since 1981. This system did not exist in 1973. The 197310 is a historical number retained by the CMA, and the numbers assigned that year by JMA (Japan), the Joint Typhoon Warning Center (USA), and China’s meteorological agencies may not correspond directly.
Track data sources: China Meteorological Administration Tropical Cyclone Best Track Dataset (CMA-STI); wind speeds are 2-minute sustained wind speeds.
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Typhoon Joan Route Review
Typhoon Joan at 1973-08-17 08:00 at 19.9°N, 132.3°E over the Northwest Pacific; initial intensity: Tropical Depression.
It peaked at Severe Tropical Storm intensity with max winds of 30 m/s (~108 km/h) and a minimum central pressure of 980hPa, recorded at 1973-08-22 08:00.
After 08:00 on 1973-08-23, Typhoon Joan gradually weakened and ceased numbering at 08:00 that day; its lifecycle included 33 track points.
Typhoon Joan routes
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 08-17 08:00 | 19.9°N
132.3°E | Tropical Depression | 12 m/s
1004 hPa | - |
| 08-17 20:00 | 19.2°N
131.3°E | Tropical Depression | 15 m/s
1002 hPa | SW |
| 08-18 08:00 | 18.9°N
130°E | Tropical Depression | 15 m/s
1002 hPa | W |
| 08-18 20:00 | 19.2°N
128.1°E | Tropical Depression | 15 m/s
1002 hPa | WNW |
| 08-19 08:00 | 20.5°N
126°E | Tropical Storm | 20 m/s
1000 hPa | NW |
| 08-19 20:00 | 21.3°N
123.7°E | Severe Tropical Storm | 25 m/s
994 hPa | WNW |
| 08-20 08:00 | 21.5°N
121°E | Tropical Storm | 20 m/s
992 hPa | W |
| 08-20 14:00 | 21.2°N
119.5°E | Tropical Storm | 20 m/s
995 hPa | S |
| 08-20 20:00 | 21.1°N
118.2°E | Tropical Depression | 15 m/s
995 hPa | SSW |
| 08-21 02:00 | 21.1°N
116.8°E | Tropical Depression | 15 m/s
996 hPa | SW |
| 08-21 08:00 | 21°N
115.1°E | Tropical Depression | 15 m/s
996 hPa | SW |
| 08-21 14:00 | 20.8°N
112.4°E | Tropical Depression | 15 m/s
995 hPa | WSW |
| 08-21 20:00 | 20.6°N
110.4°E | Tropical Depression | 15 m/s
995 hPa | WSW |
| 08-22 02:00 | 20.1°N
109.2°E | Tropical Storm | 20 m/s
990 hPa | WSW |
| 08-22 08:00 | 19.8°N
107.7°E | Severe Tropical Storm | 30 m/s
980 hPa | WSW |
| 08-22 20:00 | 19.5°N
105.8°E | Tropical Depression | 15 m/s
995 hPa | WSW |
| 08-23 08:00 | 18.2°N
102.4°E | Tropical Depression | 10 m/s
998 hPa | WSW |
Sampled rows shown; all 33 track points are available on the interactive map or via the public API .
FAQ
Typhoon Joan was the 1973 Typhoon.
Typhoon Joan’s 197310 is the historical number retained by the CMA, meaning No. 10 of 1973. Its international name was JOAN. The internationally unified numbering system for the Northwest Pacific did not begin until 1981; before then, different agencies used their own numbering systems, so the numbers assigned by JMA (Japan), the Joint Typhoon Warning Center (USA), and China’s meteorological agencies may not correspond directly.
Where does Typhoon Joan's track data come from?
Track data sources: China Meteorological Administration Tropical Cyclone Best Track Dataset (CMA-STI); wind speeds are 2-minute sustained wind speeds.
What is the highest level of Typhoon Joan?
Typhoon Joan peak intensity is Severe Tropical Storm, max wind 30m/s, minimum central pressure 980 hPa.
Is the typhoon Joan Landfall?
According to records, Typhoon Joan is not in our coastal Landfall.
Where can I view typhoon Joan's live track map?
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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