Typhoon Roy trajectory analysis
Track Characteristics and Moving Trends
Typhoon Roy (198111) 的生命史始 at S海NE部海域, 整体路径呈现显著的“先NE后SW”的折返特征. formed初期 (8月4日00时至5日12时) , 系统位 at lat 15°至17°N, 114°至117°之间, 主要 toward NE direction缓慢Moving, 期间经纬度变化显示其受引导气流影响较小, Moving速度平缓. 8月5日18时至6日12时, Typhoon 继续 toward NE direction推进, 抵达lat 19.2°N, 118.8°附近, 此为路径的最N端及最E端转折点.
After reaching the extreme point of the path, the Moving direction of the system is fundamentally reversed.Since August 6, at 18:00, the Typhoon turns toward SW, and continues the Trend until it dissolves.Thro the process, the Typhoon is always active at sea, with no Landfall record.The trajectory forms a rotating structure on the map that rotates in the shape of a 'V', indicating that it has undergone a complex power adjustment process in the sub-tropical high-pressure edge or weak guided airflow field.
Intensity evolution and historical comparison
从Intensity变化来看, Typhoon Roy经历了一个完整的“增强-维持-减弱”周期. 初始阶段为Tropical Depression, max wind 12m/s. 经过约30h的缓慢加强, at 8月5日06时升级为Tropical Storm, 并在随后的一天内迅速增强. 8月6日00时, 系统达到peak intensity, 定性为Severe Tropical Storm, max wind 录得25m/s. 巅峰状态维持了约12h, 随后自8月6日18时起开始减弱, 重新降级为Tropical Storm, 并 at 8月7日06时进一步 weakened into Tropical Depression. 此后, 系统在 toward SWMoving的过程中持续衰减, 至8月9日00时消散前, max wind 已降至10m/s.
In comparison with the same name Typhoon, the 1981 Roy and the 1988 Roy (198801) have a huge difference in intensity. in 1981 Roy only for Severe Tropical Storm intensity with max winds of 25m/s; and in 1988 Roy has evolved to Super Typhoon. This shows that despite the same name, but the different years atmospheric background and sea temperature conditions have a decisive influence on the development potential of Typhoon, in 1981 Roy belongs to the medium weak thermal cyclone system.
Typhoon Roy routes
| Time | Position | Intensity | Wind · Pressure | Moving Toward |
|---|
| 08-02 08:00 | 13°N
112°E | Tropical Depression | 10 m/s
1002 hPa | - |
| 08-02 20:00 | 13.6°N
113.3°E | Tropical Depression | 12 m/s
1000 hPa | E |
| 08-03 08:00 | 14.5°N
114.5°E | Tropical Depression | 12 m/s
1000 hPa | NE |
| 08-03 20:00 | 15.8°N
114°E | Tropical Depression | 15 m/s
999 hPa | WNW |
| 08-04 08:00 | 15°N
114.5°E | Tropical Depression | 15 m/s
997 hPa | SE |
| 08-04 20:00 | 15.1°N
115°E | Tropical Depression | 15 m/s
996 hPa | N |
| 08-05 08:00 | 15.8°N
116.1°E | Tropical Storm | 20 m/s
993 hPa | NE |
| 08-05 20:00 | 16.7°N
117.2°E | Tropical Storm | 20 m/s
992 hPa | NE |
| 08-06 08:00 | 18°N
118°E | Severe Tropical Storm | 25 m/s
990 hPa | NE |
| 08-06 20:00 | 19.4°N
118.5°E | Tropical Storm | 20 m/s
990 hPa | N |
| 08-07 08:00 | 20.4°N
118°E | Tropical Storm | 20 m/s
993 hPa | NW |
| 08-07 20:00 | 20.5°N
117°E | Tropical Storm | 20 m/s
995 hPa | WSW |
| 08-08 08:00 | 19.8°N
115.8°E | Tropical Depression | 15 m/s
998 hPa | SW |
| 08-08 20:00 | 19.2°N
114.3°E | Tropical Depression | 15 m/s
998 hPa | WSW |
| 08-09 08:00 | 18.6°N
112.5°E | Tropical Depression | 12 m/s
997 hPa | WSW |
| 08-09 20:00 | 19°N
110.3°E | Tropical Depression | 12 m/s
995 hPa | WNW |
| 08-10 08:00 | 19.5°N
108°E | Tropical Depression | 12 m/s
996 hPa | WNW |
| 08-10 20:00 | 20°N
104.5°E | Tropical Depression | 10 m/s
997 hPa | W |
Sampled rows shown; all 35 track points are available on the interactive map or via the public API .
FAQ
Typhoon Roy is the 1981 Typhoon.
Typhoon Roy's international code is 198111, is the 11th Typhoon of 1981, international name ROY.
What is the most powerful Typhoon Roy?
Typhoon Roy peak intensity is Severe Tropical Storm, max wind 25m/s, minimum central pressure 986 hPa.
Typhoon RoyLandfall?
According to records, Typhoon Roy is not in our coastal landfall.
Where can I view typhoon Roy's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Roy's Track history map, multinational meteorological agency Forecast comparison, windshield range with IntensityTrend, page address: https://taifengshuo.com/typhoon/198111.
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