Typhoon Betty Route Analysis
Track and Movement Characteristics
Typhoon Betty (198708) 的生命史始 at Northwest Pacific远洋海域, 整体路径呈现稳定的WNW走 toward , 最终Go to S海N部并消散 at 中S半岛附近. 从坐标序列分析, 该Typhoon formed初期 (8月9日至10日) 在Philippines以E洋面缓慢 toward NW, 纬度从9.5°N升至11.5°N, 经度由132.3°EW移至131.6°E, Moving速度相对平缓. 8月11日至12日, 随着Intensity急剧增强, 其 toward W分量显著加大, 经度在24h内从130.4°E快速W进至126.5°E, 显示出受强盛副热带高压引导的特征.
After entering the South China Sea, Betty maintained a west-northwestward track, with no significant turning or stagnation. From August 13 to 16, the typhoon’s center crossed the central South China Sea, with its latitude gradually increasing from 13.3°N to 17.8°N while its longitude continued westward across key meridians including 120°E and 110°E. Notably, despite having no recorded landfall, its track passed closely along the southern coast of China and nearby northern South China Sea waters. Its northernmost point reached 19.5°N, while its westernmost extent advanced to 98°E, indicating that the southwest monsoon or cross-equatorial flow continued to provide strong westward driving force, keeping the system active until it weakened and dissipated near land.
Intensity evolution and historical comparison
Betty’s intensity evolution was typical of rapid intensification, a prolonged peak, and gradual weakening. It began as a tropical depression on August 9, with winds of 12 m/s and a central pressure of 1004 hPa, and developed into a super typhoon in about three days. During the 24 hours from 02:00 on August 11 to 02:00 on August 12, the central pressure plunged from 935 hPa to a record-low 891 hPa, while maximum winds surged to 70 m/s, demonstrating exceptional explosive intensification. The peak phase was brief, with a slight weakening by 14:00 on August 12, but Betty subsequently fluctuated between severe typhoon and super typhoon intensity over the South China Sea. At 02:00 on August 15, it again reached a high intensity of 55 m/s with a central pressure of 925 hPa, showing that its core structure remained resilient with the support of warm sea temperatures.
Compared with previous typhoons of the same name, Betty in 1987 was exceptionally intense. Its minimum central pressure of 891 hPa was far lower than those of Betty in 1984 at 980 hPa, Betty in 1975 at 948 hPa, and Betty in 1980 at 925 hPa, and only slightly lower than the 910 hPa recorded by Betty in 1972. As the eighth numbered typhoon of 1987, Betty established its status as that year’s exceptionally destructive super typhoon with a peak wind speed of 70 m/s. Although it did not make landfall and directly cause documented land disasters, its deep low-pressure system and broad wind circle posed a severe threat to shipping routes and nearby waters.
Typhoon Betty routes
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 08-09 02:00 | 9.5°N
132.3°E | Tropical Depression | 12 m/s
1004 hPa | - |
| 08-09 14:00 | 10.5°N
132.1°E | Tropical Storm | 20 m/s
997 hPa | NNW |
| 08-10 02:00 | 11.1°N
131.9°E | Severe Tropical Storm | 25 m/s
990 hPa | NNW |
| 08-10 14:00 | 11.5°N
131.6°E | Typhoon | 35 m/s
980 hPa | NW |
| 08-11 02:00 | 12°N
130.4°E | Severe Typhoon | 45 m/s
935 hPa | W |
| 08-11 14:00 | 12.3°N
128.7°E | Super Typhoon | 60 m/s
910 hPa | W |
| 08-12 02:00 | 12.3°N
126.5°E | Super Typhoon | 70 m/s
891 hPa | W |
| 08-12 14:00 | 12.6°N
124.3°E | Super Typhoon | 60 m/s
915 hPa | W |
| 08-13 02:00 | 13.3°N
121.6°E | Severe Typhoon | 50 m/s
935 hPa | WNW |
| 08-13 14:00 | 14.2°N
119.1°E | Severe Typhoon | 45 m/s
940 hPa | WNW |
| 08-14 02:00 | 14.8°N
116.3°E | Severe Typhoon | 50 m/s
930 hPa | WNW |
| 08-14 14:00 | 15.6°N
114°E | Severe Typhoon | 50 m/s
930 hPa | WNW |
| 08-15 02:00 | 15.8°N
111.7°E | Super Typhoon | 55 m/s
925 hPa | W |
| 08-15 14:00 | 16.7°N
110°E | Severe Typhoon | 50 m/s
930 hPa | WNW |
| 08-16 02:00 | 17.3°N
108.5°E | Severe Typhoon | 45 m/s
940 hPa | W |
| 08-16 14:00 | 17.8°N
106.7°E | Typhoon | 40 m/s
945 hPa | WNW |
| 08-17 02:00 | 18.2°N
103.5°E | Tropical Storm | 20 m/s
990 hPa | W |
| 08-17 14:00 | 19.5°N
98°E | Tropical Depression | 12 m/s
996 hPa | WNW |
Sampled rows shown; all 35 track points are available on the interactive map or via the public API .
FAQ
Typhoon Betty is the 1987 Typhoon.
Typhoon Betty's international code is 198708, is typhoon 8 of 1987, international name BETTY.
Where does the track data for Typhoon Betty 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 Betty?
Typhoon Betty peak intensity is Super Typhoon, max wind 70m/s, minimum central pressure 891 hPa.
The Typhoon BettyLandfall.
According to records, Typhoon Betty is not in our coastal landfall.
Where can I view typhoon Betty's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Betty's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/198708.
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