[Quick Archive Overview]Typhoon HELENA (No.194708, a historical ID before 1981) was a 1947 Northwest Pacific typhoon; peak intensity: typhoon, maximum wind: 35m/s, minimum central pressure: -hPa, no landfall in China, retired on 1947-08-14, with 10 track points recorded throughout its lifetime.
Numbering notes: The internationally unified numbering system for the Northwest Pacific has been assigned by JMA (Japan), the regional specialized meteorological center in Tokyo, since 1981. This system did not exist in 1947. The ID 194708 is the historical number used by the CMA, and the numbers assigned that year by JMA (Japan), the Joint Typhoon Warning Center in the USA, and China's meteorological authorities may differ for the same typhoon and cannot be directly matched.
Track data source: USA Joint Typhoon Warning Center (JTWC) best-track data. China Meteorological Administration best-track dataset begins in 1949 and does not include this typhoon. JTWC wind speeds are 1-min sustained wind speeds, generally about 10% higher than the 2-min sustained wind speeds used in China.
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Full Track Review of Typhoon HELENA
Typhoon HELENA at 1947-08-12 06:00 at 17.9°N, 115.1°E over the Northwest Pacific; initial intensity: Severe Tropical Storm.
It peaked at Typhoon intensity with max winds of 35 m/s (~126 km/h) and a minimum central pressure of -hPa, recorded at 1947-08-12 12:00.
After 12:00 on 1947-08-14, Typhoon HELENA gradually weakened and was dissipated at 12:00 on 1947-08-14; its lifecycle recorded 10 track points.
Typhoon HELENA Track Data Table
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 08-12 06:00 | 17.9°N
115.1°E | Severe Tropical Storm | 30 m/s
- hPa | - |
| 08-12 12:00 | 18.7°N
113.8°E | Typhoon | 35 m/s
- hPa | - |
| 08-12 18:00 | 19.4°N
112.7°E | Typhoon | 35 m/s
- hPa | - |
| 08-13 00:00 | 20.2°N
111.9°E | Severe Tropical Storm | 30 m/s
- hPa | - |
| 08-13 06:00 | 21.9°N
111.4°E | Severe Tropical Storm | 28 m/s
- hPa | - |
| 08-13 12:00 | 21.5°N
110°E | Tropical Storm | 20 m/s
- hPa | - |
| 08-13 18:00 | 20.7°N
108.5°E | Tropical Storm | 20 m/s
- hPa | - |
| 08-14 00:00 | 20.5°N
107°E | Tropical Depression | 17 m/s
- hPa | - |
| 08-14 06:00 | 20.5°N
106°E | Tropical Depression | 17 m/s
- hPa | - |
| 08-14 12:00 | 20°N
105°E | Tropical Depression | 15 m/s
- hPa | - |
FAQ
Which number typhoon was Typhoon HELENA in 1947?
HELENA's 194708 is the historical ID used by the CMA (the 8th typhoon of 1947), while its international name was HELENA. The internationally unified numbering system for the Northwest Pacific did not begin until 1981. Before then, agencies assigned their own numbers, so the IDs used by JMA (Japan), the Joint Typhoon Warning Center in the USA, and China's meteorological authorities may differ for the same typhoon and cannot be directly matched.
Where does the track data for Typhoon HELENA come from?
Track data source: USA Joint Typhoon Warning Center (JTWC) best-track data. China Meteorological Administration best-track dataset begins in 1949 and does not include this typhoon. JTWC wind speeds are 1-min sustained wind speeds, generally about 10% higher than the 2-min sustained wind speeds used in China.
What was the peak intensity level of Typhoon HELENA?
Typhoon HELENA peak intensity is Typhoon , max wind 35m/s, minimum central pressure - hPa.
Did Typhoon HELENA make landfall?
According to records, Typhoon HELENA did not make landfall on China's coast.
Where can I view typhoon HELENA's live track map?
TyphoonSays (taifengshuo.com) provides the track history map for Typhoon HELENA, forecast comparisons from multiple meteorological agencies, wind circle ranges, and intensity trends. Page URL: https://taifengshuo.com/typhoon/194708.
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