Typhoon Dinah Route Characteristics
Track and Turning Characteristics
Typhoon Dinah (198711) 的生命史始 at Northwest Pacific远洋海域, 整体路径呈现典型的“NW行进—转 toward NE”的抛物线形态. formed初期 (8月21日至23日) , 系统在低纬度海域 (约11°N-12°N) 维持W toward 或微WMoving, 随后逐渐调整为稳定的NW direction. 从8月24日至26日, Typhoon 中心沿NW路径快速逼近副热带高压边缘, 纬度从12.5°N迅速N抬至18.5°N, 经度由137.2°EW进至130.1°E.
The key turning phase occurred from August 27 to 28. As the system moved to around 20°N, 129°E, it slowed and gradually completed a counterclockwise turn. After August 28, its track clearly turned northeast, passing over the sea east of the Ryukyu Islands before accelerating toward Japan and the oceans to its south and east. Finally, the system weakened and dissipated over the high-latitude waters at 49°N, 152°E on September 1. It made no landfall during its entire life cycle, with most of its activity confined to the open ocean.
Intensity evolution and historical comparison
Dinah的Intensity演变经历了显著的快速增强与缓慢减弱过程. 初始阶段为Tropical Depression, 8月22日晚 intensified into Tropical Storm. 在8月24日至26日的NW行进期间, 系统经历爆发式增强, Pressure在48h内从980hPa骤降至920hPa, max wind 从30m/s跃升至60m/s, at 8月26日14时达到Super Typhoon巅峰状态, 并维持该Intensity约18h.
After turning northeast, the typhoon began weakening steadily as it encountered the high-latitude environment and cooler sea surface temperatures. It weakened to a severe typhoon after August 28, then further weakened to a typhoon on August 30, before downgrading to a severe tropical storm over the high-latitude region on the evening of August 31.
Compared with previous typhoons of the same name, Dinah in 1987 was significantly more intense. Its minimum central pressure of 920 hPa was far lower than those of Dinah in 1980 at 941 hPa, 1977 at 963 hPa, 1974 at 974 hPa, and 1971 at 965 hPa. As the only storm of the same name to reach super typhoon status, Dinah in 1987 demonstrated exceptional energy accumulation, with its peak intensity ranking first in the historical series.
Typhoon Dinah routes
| Time | Position | Intensity | Wind · Pressure | Move toward |
|---|
| 08-21 08:00 | 11.7°N
151.4°E | Tropical Depression | 12 m/s
1006 hPa | - |
| 08-22 02:00 | 12.3°N
146.9°E | Tropical Depression | 15 m/s
1002 hPa | W |
| 08-22 20:00 | 11.3°N
143.2°E | Tropical Storm | 20 m/s
995 hPa | W |
| 08-23 14:00 | 11.5°N
140.5°E | Tropical Storm | 20 m/s
990 hPa | W |
| 08-24 08:00 | 12.5°N
137.2°E | Severe Tropical Storm | 30 m/s
980 hPa | NW |
| 08-25 02:00 | 14.5°N
133.8°E | Typhoon | 35 m/s
975 hPa | WNW |
| 08-25 20:00 | 16.8°N
131.2°E | Severe Typhoon | 45 m/s
950 hPa | NW |
| 08-26 14:00 | 18.5°N
130.1°E | Super Typhoon | 60 m/s
920 hPa | NNW |
| 08-27 08:00 | 20°N
129.2°E | Super Typhoon | 60 m/s
920 hPa | NW |
| 08-28 02:00 | 20.7°N
128°E | Super Typhoon | 55 m/s
930 hPa | NW |
| 08-28 20:00 | 21.4°N
127°E | Severe Typhoon | 50 m/s
940 hPa | NW |
| 08-29 14:00 | 23.9°N
126.2°E | Severe Typhoon | 45 m/s
945 hPa | NNW |
| 08-30 08:00 | 27.9°N
126.1°E | Typhoon | 40 m/s
955 hPa | N |
| 08-31 02:00 | 34.4°N
129°E | Typhoon | 40 m/s
960 hPa | NNE |
| 08-31 20:00 | 41.2°N
135.9°E | Severe Tropical Storm | 30 m/s
970 hPa | NE |
| 09-01 14:00 | 47.5°N
147.5°E | Tropical Storm | 20 m/s
980 hPa | NE |
| 09-01 20:00 | 49°N
152°E | Tropical Storm | 20 m/s
980 hPa | ENE |
Sampled rows shown; all 47 track points are available on the interactive map or via the public API .
FAQ
Typhoon Dinah is the 1987 Typhoon.
Typhoon Dinah's international code is 198711, is the 11th Typhoon of 1987, international name DINAH.
Where does the track data for Typhoon Dinah 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 Dinah?
Typhoon Dinah peak intensity is Super Typhoon, max wind 60m/s, minimum central pressure 920 hPa.
Typhoon DinahLandfall?
According to records, Typhoon Dinah is not in our coastal landfall.
Where can I view typhoon Dinah's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Dinah's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/198711.
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