[Quick Archive Overview]Typhoon Thelma (No.197321, a historical number used before 1981) was a 1973 Northwest Pacific typhoon. Its peak intensity was severe tropical storm, with maximum winds of 30m/s and a minimum central pressure of 991hPa. It did not make landfall in China and was finally numbered off on 1973-11-17, with 12 track points recorded throughout.
Numbering note: The internationally unified numbering system for the Northwest Pacific has been assigned by the JMA in Japan (RSMC Tokyo) since 1981. This system did not exist in 1973. The number 197321 is the historical number retained by the CMA. The JMA in Japan, the Joint Typhoon Warning Center in the United States, and China's meteorological authorities may have assigned different numbers to the same typhoon that year, so they cannot be compared directly.
Path. Data sources: China Meteorological Administration Tropical Cyclone Best Track Dataset (CMA-STI); wind speed refers to 2-min sustained wind speed. Track points at intermediate times are encrypted based on original operational positioning data, while wind speed and pressure are interpolated using best-track anchor points.
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Typhoon Thelma trajectory
Typhoon Thelma at 1973-11-14 20:00 at 9.6°N, 114.8°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 991hPa, recorded at 1973-11-15 14:00.
After 14:00 on November 17, 1973, Typhoon Thelma gradually weakened and was stopped numbering at 14:00 that day. Its lifecycle was recorded with 12 track points.
Typhoon Thelma routes
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 11-14 20:00 | 9.6°N
114.8°E | Tropical Depression | 10 m/s
1005 hPa | - |
| 11-15 02:00 | 9.7°N
113.2°E | Tropical Depression | 12 m/s
1002 hPa | W |
| 11-15 08:00 | 9.8°N
111.4°E | Tropical Storm | 20 m/s
998 hPa | W |
| 11-15 14:00 | 9.8°N
109.9°E | Severe Tropical Storm | 30 m/s
992 hPa | W |
| 11-15 20:00 | 9.7°N
109°E | Severe Tropical Storm | 30 m/s
991 hPa | W |
| 11-16 02:00 | 9.7°N
108.4°E | Severe Tropical Storm | 30 m/s
992 hPa | W |
| 11-16 08:00 | 9.7°N
107.7°E | Tropical Storm | 20 m/s
995 hPa | W |
| 11-16 14:00 | 9.8°N
107.1°E | Tropical Storm | 20 m/s
995 hPa | W |
| 11-16 20:00 | 9.7°N
106.3°E | Tropical Depression | 15 m/s
998 hPa | W |
| 11-17 02:00 | 9.2°N
105.7°E | Tropical Depression | 15 m/s
1002 hPa | SW |
| 11-17 08:00 | 8.8°N
105°E | Tropical Depression | 10 m/s
1003 hPa | WSW |
| 11-17 14:00 | 8.8°N
104.4°E | Tropical Depression | 10 m/s
1004 hPa | W |
FAQ
Thelma was the 1973 Typhoon.
Typhoon Thelma's 197321 is the historical number retained by the CMA (the 21st typhoon of 1973). Its international name was THELMA. The internationally unified numbering system for the Northwest Pacific did not begin until 1981; before then, each agency used its own numbering. The JMA in Japan, the Joint Typhoon Warning Center in the United States, and China's meteorological authorities may have assigned different numbers to the same typhoon, so they cannot be compared directly.
Where does the track data for Typhoon Thelma come from?
Path. Data sources: China Meteorological Administration Tropical Cyclone Best Track Dataset (CMA-STI); wind speed refers to 2-min sustained wind speed. Track points at intermediate times are encrypted based on original operational positioning data, while wind speed and pressure are interpolated using best-track anchor points.
What is the most powerful Typhoon Thelma?
Typhoon Thelma peak intensity is Severe Tropical Storm, max wind 30m/s, minimum central pressure 991 hPa.
Is the Typhoon Thelma Landfall?
According to records, the Typhoon Thelma is not in our coastal Landfall.
Where can I view typhoon Thelma's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Thelma's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197321.
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