Typhoon Billie trajectory analysis
Track and Movement Characteristics
Typhoon Billie (197613) 的生命周期始 at Northwest Pacific远洋海域, 整体路径呈现典型的“NW行—转 toward NE”的抛物线形态. formed初期 (8月3日至5日) , 系统位 at 146°E附近, 主要 toward W direction缓慢Moving, 纬度维持在13.8°N至15.2°N之间. 随后, 受引导气流影响, 路径逐渐转为NW direction, 经度快速W移, 从143.2°E迅速推进至129.6°E.
The key turning point occurred from August 8 to 9. When the center reached approximately 23.5°N, 129.6°E, the typhoon reached its westernmost point, after which its track curved markedly and began turning northeast. It then accelerated toward higher latitudes and finally dissipated over the Yellow Sea at 36.1°N, 119.5°E on August 13. Throughout its entire lifecycle, the typhoon made no landfall and remained at sea. Its track covered a vast area, from the low-latitude tropical ocean to the mid-latitude temperate seas.
Intensity evolution and historical comparison
Billie went through a complete intensification-peak-weakening cycle. It began as a tropical depression and rapidly intensified into a typhoon within 48 hours. At 20:00 on August 7, the system reached peak intensity at 22.3°N, 132.5°E, with a minimum central pressure of 910hPa and maximum winds of 60m/s, making it a super typhoon. The peak phase was brief, followed by rapid weakening. In particular, after August 10, as the system moved northward and the underlying surface changed, pressure rose rapidly above 985hPa and wind speed fell below 20m/s, becoming a tropical storm before weakening into a tropical depression.
Compared with previous typhoons of the same name, Billie in 1976 had exceptionally intense characteristics. Its minimum central pressure of 910hPa was lower than that of Billie in 1973 at 917hPa, Billie in 1970 at 945hPa, and earlier typhoons of the same name, while its maximum winds were also exceptionally strong. The data indicate that the 1976 typhoon was the strongest of the listed Billies, displaying remarkable explosiveness and energy release. Although it caused no landfall-related damage, its extreme meteorological characteristics over the ocean have significant analytical value.
Typhoon Billie routes
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 08-03 08:00 | 13.8°N
146.5°E | Tropical Depression | 15 m/s
1002 hPa | - |
| 08-03 20:00 | 15°N
146.2°E | Tropical Depression | 15 m/s
996 hPa | NNW |
| 08-04 08:00 | 15.7°N
145.2°E | Severe Tropical Storm | 25 m/s
991 hPa | W |
| 08-04 20:00 | 15.4°N
144.4°E | Severe Tropical Storm | 30 m/s
990 hPa | SSW |
| 08-05 08:00 | 15.2°N
143.5°E | Typhoon | 35 m/s
982 hPa | W |
| 08-05 20:00 | 15.5°N
142.6°E | Typhoon | 35 m/s
976 hPa | WNW |
| 08-06 08:00 | 16.9°N
140.5°E | Typhoon | 35 m/s
970 hPa | NW |
| 08-06 20:00 | 18.3°N
138.3°E | Typhoon | 35 m/s
960 hPa | WNW |
| 08-07 08:00 | 19.9°N
135.8°E | Severe Typhoon | 50 m/s
940 hPa | WNW |
| 08-07 20:00 | 22.3°N
132.5°E | Super Typhoon | 60 m/s
928 hPa | NW |
| 08-08 08:00 | 23.1°N
131°E | Super Typhoon | 55 m/s
940 hPa | WNW |
| 08-08 20:00 | 23.7°N
128.2°E | Super Typhoon | 55 m/s
944 hPa | W |
| 08-09 08:00 | 24.2°N
125.5°E | Severe Typhoon | 50 m/s
945 hPa | WNW |
| 08-09 20:00 | 24.7°N
123°E | Severe Typhoon | 45 m/s
945 hPa | W |
| 08-10 08:00 | 25°N
120.1°E | Typhoon | 35 m/s
965 hPa | W |
| 08-10 20:00 | 25.8°N
116.6°E | Tropical Storm | 20 m/s
985 hPa | WNW |
| 08-11 08:00 | 26.6°N
113.8°E | Tropical Depression | 15 m/s
990 hPa | WNW |
| 08-11 20:00 | 27.8°N
112.4°E | Tropical Depression | 12 m/s
995 hPa | NW |
| 08-12 02:00 | 28.3°N
112°E | Tropical Depression | 10 m/s
999 hPa | SW |
| 08-12 08:00 | 29°N
111.9°E | Tropical Depression | 9 m/s
1002 hPa | SW |
| 08-12 14:00 | 33.3°N
116.9°E | Tropical Depression | 9 m/s
1000 hPa | NE |
| 08-13 02:00 | 35.2°N
118.1°E | Tropical Depression | 9 m/s
1001 hPa | NNE |
| 08-13 08:00 | 36.1°N
119.5°E | Tropical Depression | 9 m/s
1001 hPa | NE |
Sampled rows shown; all 44 track points are available on the interactive map or via the public API .
FAQ
Typhoon Billie was the 1976 Typhoon.
Billie’s number 197613 is the historical number used by the CMA, meaning the 13th typhoon of 1976. Its international name was BILLIE. The international standard numbering system for the Northwest Pacific did not begin until 1981. Before then, agencies used their own systems, and the numbers assigned by the JMA, the Joint Typhoon Warning Center in the United States, and China’s meteorological authorities to the same typhoon could differ, so they cannot be compared directly.
Where does the track data for Typhoon Billie 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 highest level of Typhoon Billie?
Typhoon Billie peak intensity is Super Typhoon, max wind 60m/s, minimum central pressure 910 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/197613.
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