Typhoon Billie trajectory analysis
Track and Movement Characteristics
Typhoon Billie (197008) 的生命史始 at Northwest Pacific远洋海域, 整体路径呈现典型的“NW—N—NE”抛物线型转 toward 特征. formed初期 (8月21日至23日) , 系统位 at 14.5°N附近, 主要 toward W, 随后逐渐转为NW direction. 8月25日至27日期间, Typhoon 在18.4°N至25.5°N纬度带维持稳定的NW toward Moving, 经度变化较小, 显示其受副热带高压引导气流影响显著.
The key turning point occurred around August 28. After crossing 27°N, the track curved markedly, shifting from northwestward to due north and then accelerating toward the northeast. Between 02:00 on August 28 and 20:00 on August 31, the typhoon’s center latitude rose rapidly from 27.4°N to 39.6°N, while its longitude fluctuated to around 126°E from 130.4°E. This reflected its rapid movement and turning under the influence of the mid- and high-latitude westerlies. It finally dissipated over the high-latitude waters near 43.2°N on September 1. It made no landfall and was a typical remote-ocean typhoon that turned toward the northeast.
Intensity evolution and historical comparison
该Typhoon 经历了完整且剧烈的Intensity变化过程. 从8月21日的Tropical Depression (1008hPa) 起步, 系统在 toward WMoving过程中持续增强, at 8月25日发展为Typhoon 级别. 加强Trend在8月28日02:00达到顶峰, 此时中心最低气压降至945hPa, max wind 达55m/s, 评定为Super Typhoon. 值得注意的是, 巅峰状态维持Time较短, 仅约18h后, 随着纬度升高及路径转 toward , intensity 开始迅速衰减. 8月28日20:00已 weakened into Severe Typhoon, 至8月31日20:00进一步降级为Tropical Storm, 体现了cold air侵入及海温降低对Typhoon 结构的破坏作用.
Compared with previous typhoons of the same name, the peak intensity of Typhoon Billie in 1970, with a central pressure of 945 hPa, was weaker than Billie in 1976 at 910 hPa and Billie in 1973 at 917 hPa. It was, however, significantly stronger than the systems of the same name in 1967 and 1964, which had central pressures of 979 hPa and 994 hPa, respectively. This shows that although the 1970 typhoon did not set the historical record for intensity, it remained one of the more intense storms in the Billie naming series. Its distinctive rapid intensification over remote waters and swift structural transformation are of considerable research value.
Typhoon Billie routes
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 08-21 08:00 | 14.5°N
137.5°E | Tropical Depression | - m/s
1008 hPa | - |
| 08-22 02:00 | 14.6°N
135.7°E | Tropical Depression | - m/s
1008 hPa | W |
| 08-22 20:00 | 14.9°N
133.8°E | Tropical Depression | - m/s
1006 hPa | W |
| 08-23 14:00 | 15.7°N
131.8°E | Tropical Storm | 20 m/s
999 hPa | NW |
| 08-24 08:00 | 16.6°N
131.4°E | Severe Tropical Storm | 25 m/s
990 hPa | NNW |
| 08-25 02:00 | 18.4°N
131.5°E | Severe Tropical Storm | 30 m/s
975 hPa | NNE |
| 08-25 20:00 | 20.5°N
132°E | Typhoon | 40 m/s
963 hPa | NNE |
| 08-26 14:00 | 23.1°N
132.2°E | Severe Typhoon | 45 m/s
955 hPa | N |
| 08-27 08:00 | 25.5°N
132°E | Severe Typhoon | 50 m/s
950 hPa | N |
| 08-28 02:00 | 27.4°N
130.4°E | Super Typhoon | 55 m/s
946 hPa | NW |
| 08-28 20:00 | 29°N
128.1°E | Severe Typhoon | 45 m/s
955 hPa | NW |
| 08-29 14:00 | 30.3°N
127.1°E | Typhoon | 40 m/s
950 hPa | NNW |
| 08-30 08:00 | 32.5°N
126.3°E | Typhoon | 35 m/s
960 hPa | NNW |
| 08-31 02:00 | 35.3°N
125.3°E | Typhoon | 35 m/s
975 hPa | NNW |
| 08-31 20:00 | 39.6°N
126°E | Tropical Storm | 20 m/s
990 hPa | NNE |
| 09-01 08:00 | 43.2°N
131.1°E | Tropical Depression | 15 m/s
995 hPa | NNE |
Sampled rows shown; all 45 track points are available on the interactive map or via the public API .
FAQ
Typhoon Billie was the 1970s Typhoon.
The identifier 197008 for Typhoon Billie is the historical number retained by the CMA, corresponding to the eighth typhoon of 1970. Its international name was BILLIE. Internationally unified numbering in the northwest Pacific did not begin until 1981. Before then, individual agencies used separate numbering systems, so the numbers assigned by the JMA in Japan, the Joint Typhoon Warning Center in the United States, and China’s meteorological authorities could differ and cannot be compared directly.
Where does the track data for Typhoon Billie 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 Billie?
Typhoon Billie peak intensity is Super Typhoon, max wind 55m/s, minimum central pressure 945 hPa.
Typhoon Billie Landfall?
According to records, Typhoon Billie is not in our coastal landfall.
Where can I view typhoon Billie's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Billie's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197008.
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