[Quick Archive Overview]Typhoon THELMA (CMAcode19719004, not included in that year's code sequence) was a 1971 Northwest Pacific typhoon. Its peak intensity was severe tropical storm, with maximum winds of 25m/s and a minimum central pressure of 992hPa. It did not make landfall in China, was numbered off on 1971-03-24, and had 39 recorded track points throughout its lifetime.
Code explanation: 19719004 is the CMA internal code. This tropical cyclone is recorded in the China Meteorological Administration's best-track database, but it was not included in the 1971 code sequence, so it does not occupy that year's sequence number.
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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A complete review of Typhoon THELMA’s track
Typhoon THELMA at 1971-03-15 08:00 at 5.7°N, 133.8°E over the Northwest Pacific; initial intensity: Tropical Depression.
It peaked at Severe Tropical Storm intensity with max winds of 25 m/s (~90 km/h) and a minimum central pressure of 992hPa, recorded at 1971-03-18 08:00.
After 1971-03-24 20:00, Typhoon THELMA gradually weakened and was dissipated at 20:00 on 1971-03-24. Its lifecycle included 39 recorded track points.
Typhoon THELMA track data table
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 03-15 08:00 | 5.7°N
133.8°E | Tropical Depression | 10 m/s
1005 hPa | - |
| 03-15 20:00 | 7.1°N
133.5°E | Tropical Depression | 15 m/s
1003 hPa | NNW |
| 03-16 08:00 | 8.6°N
132.8°E | Tropical Depression | 15 m/s
1003 hPa | NNW |
| 03-16 20:00 | 9.9°N
131.5°E | Tropical Depression | 15 m/s
1003 hPa | NW |
| 03-17 08:00 | 10.8°N
129.7°E | Tropical Storm | 20 m/s
1002 hPa | WNW |
| 03-17 20:00 | 10.4°N
129.4°E | Tropical Storm | 20 m/s
1002 hPa | S |
| 03-18 08:00 | 10°N
129.3°E | Severe Tropical Storm | 25 m/s
994 hPa | S |
| 03-18 20:00 | 9.8°N
129.2°E | Tropical Storm | 20 m/s
999 hPa | SSE |
| 03-19 08:00 | 10.5°N
130°E | Tropical Storm | 20 m/s
997 hPa | NE |
| 03-19 20:00 | 12.5°N
131.4°E | Tropical Storm | 20 m/s
996 hPa | NE |
| 03-20 08:00 | 14.8°N
133°E | Tropical Storm | 20 m/s
996 hPa | NNE |
| 03-20 20:00 | 17.2°N
134.7°E | Tropical Storm | 20 m/s
996 hPa | NE |
| 03-21 08:00 | 19.2°N
136.4°E | Tropical Storm | 20 m/s
996 hPa | NE |
| 03-21 20:00 | 20.9°N
137.9°E | Tropical Storm | 20 m/s
996 hPa | NE |
| 03-22 08:00 | 22.9°N
139.4°E | Tropical Depression | 15 m/s
996 hPa | NE |
| 03-22 20:00 | 24.5°N
141.1°E | Tropical Depression | 15 m/s
996 hPa | NE |
| 03-23 08:00 | 25.8°N
145.1°E | Tropical Depression | 15 m/s
1000 hPa | ENE |
| 03-23 20:00 | 26.8°N
149°E | Tropical Depression | 15 m/s
1000 hPa | ENE |
| 03-24 08:00 | 28.5°N
153.1°E | Tropical Depression | - m/s
1004 hPa | ENE |
| 03-24 20:00 | 32.4°N
158.7°E | Tropical Depression | - m/s
1004 hPa | NE |
Sampled rows shown; all 39 track points are available on the interactive map or via the public API .
FAQ
Which numbered typhoon of 1971 was Typhoon THELMA?
THELMA's 19719004 is the internal code assigned by the CMA. It was not included in the 1971 code sequence (it appears in the CMA best-track database but was not coded that year). Its international name is THELMA.
Where does the track data for Typhoon THELMA come from?
Track data sources: China Meteorological Administration Tropical Cyclone Best Track Dataset (CMA-STI); wind speeds are 2-minute sustained wind speeds.
What was the peak intensity of Typhoon THELMA?
Typhoon THELMA peak intensity is Severe Tropical Storm, max wind 25m/s, minimum central pressure 992 hPa.
Did Typhoon THELMA make landfall?
According to historical records, Typhoon THELMA did not make landfall on China’s coast.
Where can I view typhoon THELMA's live track map?
TyphoonSays (taifengshuo.com) provides the track history map for Typhoon THELMA, forecasts from multiple meteorological agencies, wind circle coverage, and intensity trends. Page address: https://taifengshuo.com/typhoon/19719004.
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