[Quick Archive Overview]Typhoon Iris (No.197012, a historical number from before 1981) was a 1970 Northwest Pacific typhoon. It peaked as a severe typhoon, with maximum winds of 45m/s and a minimum central pressure of 960hPa. It did not make landfall in China, was numbered off on 1970-10-08, and had 26 track points throughout its lifetime.
Numbering system: The international numbering system for the Northwest Pacific has been assigned by the JMA (Japan), the E-region Specialized Meteorological Centre, since 1981. This system did not exist in 1970, and 197012 is the historical number retained by the CMA. The JMA (Japan), the Joint Typhoon Warning Center (USA), and Chinese meteorological agencies may have assigned different numbers to the same typhoon that year, so these numbers cannot be compared 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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Overview of Typhoon Iris
Typhoon Iris at 1970-10-02 08:00 at 11°N, 112.5°E over the Northwest Pacific; initial intensity: Tropical Depression.
It peaked at Severe Typhoon intensity with max winds of 45 m/s (~162 km/h) and a minimum central pressure of 960hPa, recorded at 1970-10-06 14:00.
After 14:00 on 1970-10-08, Typhoon Iris gradually weakened and was designated dissipated at 14:00 that day. Its lifecycle included 26 recorded track points.
Typhoon Iris trajectory
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 10-02 08:00 | 11°N
112.5°E | Tropical Depression | 12 m/s
1006 hPa | - |
| 10-02 20:00 | 12.1°N
112.1°E | Tropical Depression | 15 m/s
1005 hPa | NNW |
| 10-03 08:00 | 13.2°N
112.3°E | Tropical Depression | 15 m/s
1005 hPa | N |
| 10-03 20:00 | 14.2°N
111.8°E | Tropical Depression | 15 m/s
1005 hPa | NNW |
| 10-04 08:00 | 15.2°N
111.4°E | Tropical Storm | 20 m/s
1000 hPa | NNW |
| 10-04 20:00 | 16.1°N
111.5°E | Severe Tropical Storm | 25 m/s
994 hPa | N |
| 10-05 08:00 | 17°N
112.1°E | Typhoon | 35 m/s
990 hPa | NE |
| 10-05 20:00 | 18.1°N
113°E | Typhoon | 35 m/s
975 hPa | NE |
| 10-06 08:00 | 19.4°N
113.2°E | Typhoon | 40 m/s
965 hPa | NNE |
| 10-06 20:00 | 20.1°N
114.2°E | Severe Typhoon | 45 m/s
965 hPa | ENE |
| 10-07 08:00 | 20.5°N
114.5°E | Severe Typhoon | 45 m/s
975 hPa | NNE |
| 10-07 20:00 | 20.7°N
115.2°E | Severe Tropical Storm | 30 m/s
990 hPa | ESE |
| 10-08 08:00 | 20.1°N
116.7°E | Tropical Storm | 20 m/s
999 hPa | ESE |
| 10-08 14:00 | 19.4°N
117.3°E | Tropical Depression | 10 m/s
1002 hPa | SE |
Sampled rows shown; all 26 track points are available on the interactive map or via the public API .
FAQ
Typhoon Iris was the 1970s Typhoon.
The 197012 designation for Typhoon Iris is the historical number retained by the CMA, referring to the 12th typhoon of 1970, while its international name was IRIS. The international numbering system for the Northwest Pacific did not begin until 1981. Before then, agencies used their own numbering systems, so the JMA (Japan), the Joint Typhoon Warning Center (USA), and Chinese meteorological agencies may have assigned different numbers to the same typhoon. These numbers cannot be compared directly.
Where does Typhoon Iris'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 Iris?
Typhoon Iris peak intensity is Severe Typhoon, max wind 45m/s, minimum central pressure 960 hPa.
Is there a Typhoon Iris Landfall?
According to records, Typhoon Iris is not in our coastal landfall.
Where can I view typhoon Iris's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Iris' Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197012.
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