CMA Best Track final data
| Max Wind | The minimum air pressure. |
|---|
| CMA track data | 17 m/s | 992 hPa |
| Final best-track value | 20 m/s | 995 hPa |
The post-analysis value for Typhoon Shirley differs from the live value. The live value reflects the operational positioning data during the typhoon. After Typhoon Shirley ends, the CMA combines more complete observational data to produce the best-track dataset, which is generally used for academic research and historical rankings. Data sources: CMA Tropical Cyclone best-track dataset (compiled from IBTrACS v04r01); wind speed converted from knots to m/s and rounded.
Analysis of Typhoon Shirley's Track Characteristics
Track and Movement Characteristics
Typhoon Shirley (197804) 的生命史始 at 1978年6月26日00时, formedPosition位 at lat 11.1°N, 129.5°的Northwest Pacific洋面. 在初始阶段, 该系统呈现稳定的W行Trend. 从6月26日至6月27日中午, 其纬度基本维持在11.3°N附近, 经度由129.5°E快速W移至122.8°E, 表明引导气流强劲且 direction单一. 6月27日18时至6月28日12时, 路径出现轻微S折, 纬度降至10.3°N, 随后在S海E部海域经历短暂的停滞与回旋, 经度在117°E至117.4°E之间小幅摆动.
From June 29 00, the system turned toward NW, the latitude gradually N raised, the length continued to W. Until June 30 18 dispersed at lat 14.1°N, 108.1° near, the entire course did not landfall any land. The overall path presented 'first right W, after SW microfracture, after NW' form, Moving speed faster in the pre-period, medium slowdown, later with toward NW turn toward slightly accelerated.
Intensity evolution and historical comparison
在整个生命周期内, Shirley始终维持Tropical Depression等级, 未能发展为Tropical Storm或更高Intensity等级. 其Max Wind从初始的7m/s缓慢增强, 至6月27日00时增至10m/s, 6月27日18时达到12m/s并维持较长Time. 在生命末期, 即6月29日18时至6月30日12时, intensity 达到巅峰, max wind 为17m/s, 随后在消散前减弱至15m/s. 由 at 数据中The minimum air pressure.缺失, 仅能依据wind speed判断其Intensity变化较为平缓, 无剧烈爆发式增强过程.
Looking back at previous records, 1974 Shirley (197418) and 1968 Shirley (196808) both reached the level of Typhoon; while 1965 Shirley (196518) and 1963 Shirley (196303) reached the level of Super Typhoon.
Typhoon Shirley Track Data Table
| Time | Position | Intensity | Wind · Pressure | Moving Toward |
|---|
| 06-26 00:00 | 11.1°N
129.5°E | Tropical Depression | 7 m/s
- hPa | - |
| 06-26 06:00 | 11.2°N
128.5°E | Tropical Depression | 7 m/s
- hPa | - |
| 06-26 12:00 | 11.3°N
127.5°E | Tropical Depression | 7 m/s
- hPa | - |
| 06-26 18:00 | 11.3°N
126.6°E | Tropical Depression | 7 m/s
- hPa | - |
| 06-27 00:00 | 11.3°N
125.6°E | Tropical Depression | 10 m/s
1005 hPa | - |
| 06-27 06:00 | 11.3°N
124.3°E | Tropical Depression | 10 m/s
1004 hPa | - |
| 06-27 12:00 | 11.3°N
122.8°E | Tropical Depression | 10 m/s
1004 hPa | - |
| 06-27 18:00 | 11.1°N
121°E | Tropical Depression | 12 m/s
1004 hPa | - |
| 06-28 00:00 | 10.7°N
119.2°E | Tropical Depression | 12 m/s
1006 hPa | - |
| 06-28 06:00 | 10.5°N
117.9°E | Tropical Depression | 12 m/s
1006 hPa | - |
| 06-28 12:00 | 10.3°N
117°E | Tropical Depression | 12 m/s
1006 hPa | - |
| 06-28 18:00 | 10.3°N
117.2°E | Tropical Depression | 12 m/s
1006 hPa | - |
| 06-29 00:00 | 10.5°N
117.4°E | Tropical Depression | 12 m/s
1006 hPa | - |
| 06-29 06:00 | 10.9°N
116.5°E | Tropical Depression | 12 m/s
1004 hPa | - |
| 06-29 12:00 | 11.4°N
115.2°E | Tropical Depression | 12 m/s
1004 hPa | - |
| 06-29 18:00 | 12.1°N
113.7°E | Tropical Depression | 15 m/s
1002 hPa | - |
| 06-30 00:00 | 12.8°N
112.2°E | Tropical Depression | 17 m/s
996 hPa | - |
| 06-30 06:00 | 13.2°N
110.7°E | Tropical Depression | 17 m/s
996 hPa | - |
| 06-30 12:00 | 13.5°N
109.3°E | Tropical Depression | 17 m/s
992 hPa | - |
| 06-30 18:00 | 14.1°N
108.1°E | Tropical Depression | 15 m/s
1000 hPa | - |
FAQ
Shirley was the 1978 Typhoon.
Typhoon Shirley's international code is 197804, is 1978's 4th Typhoon, international name SHIRLEY.
What was the peak intensity level of Typhoon Shirley?
Typhoon Shirley peak intensity is Tropical Depression, max wind 17m/s, minimum central pressure 992 hPa.
Did Typhoon Shirley make landfall?
According to records, Typhoon Shirley did not make landfall on China's coast.
Where can I view typhoon Shirley's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Shirley's Track history map, multinational meteorological agency Forecast comparison, wind circle range and IntensityTrend, page address: https://taifengshuo.com/typhoon/197804.
What is the maximum wind speed of Typhoon Shirley?
live 发布的Max Wind为17m/s, The minimum air pressure.992hPa; China气象局事后整编的最佳路径数据为20m/s, 995hPa, 历史统计通常以整编值为准.
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