Typhoon in-fa path characteristics analysis
Track and Movement Characteristics
Typhoon In-fa (202106) 的生命史长达12天以上, track points多达203个, 显示出其Moving缓慢, 路径复杂的显著特征. 从 formed初期的NW toward Moving, 到接近我国E部coastal 时的转 toward 调整, 其轨迹呈现出典型的“W折N抬”形态. 观测数据显示, 7月18日至21日期间, Typhoon 中心由lng 132.5°快速W移至126.4°, 纬度在22.2°N至23.9°N之间波动, 表明其在副热带高压S侧受引导气流影响稳定 toward W推进. 7月23日后, 随着纬度逐渐N抬至24.8°N并继续 toward NNW, Typhoon Go to E海海域, 路径曲率发生变化, 最终指 toward Zhejiangcoastal . 这种长About 离, 多阶段的Moving路径, 为其后续在land上维持较长Time的水汽输送和降水影响奠定了动力学基础.
Intensity Evolution and Landfall Process
In-fa的Intensity演变经历了快速增强, 巅峰维持及缓慢减弱三个阶段. 7月18日 formed时为Tropical Storm (18m/s, 998hPa) , 随后迅速加强, 至7月21日22:00达到peak intensity, 确认为Severe Typhoon级别, 中心最低气压降至955hPa, max wind 达42m/s. 值得注意的是, 在7月21日至23日期间, Typhoon 在近海区域长Time维持peak intensity, 气压稳定在955hPa, wind speed保持42m/s, 显示出极强的结构稳定性. 7月25日12:30, Typhoon 以Typhoon 级Intensity (38m/s左右推算) 首次LandfallZhejiangZhoushan普陀coastal ; 次日09:50, 再次LandfallZhejiang平湖 Citycoastal . 两次Landfall间隔Time短, 且Landfall后Intensity衰减相对缓慢, 直至7月26日下午才 weakened into Severe Tropical Storm, 反映出其庞大的环流结构和深厚的水汽支持.
Same-Name Comparison
In-fa has reached the Super Typhoon level, the minimum pressure is 935hPa, and in-fa in 2021 the minimum air pressure is 955hPa, the difference is 20hPa, max wind is also low at 2015 counterparts. although absolute intensity is less than its predecessor, but in-fa in 2021 with its special slow Moving characteristics and double Landfall path, has a sustained and far-reaching impact on the E region, its path complexity and impact length is also rare in the history of the same period Typhoon.
Typhoon In-fa Route Data
| Time | Position | Intensity | Wind · Pressure | Moving Toward |
|---|
| 07-16 20:00 | 18.8°N
134.8°E | Tropical Depression | 13 m/s
1002 hPa | - |
| 07-18 20:00 | 23.3°N
132.1°E | Tropical Storm | 20 m/s
995 hPa | NNW |
| 07-20 05:00 | 24.4°N
130.85°E | Severe Tropical Storm | 29 m/s
981 hPa | NW |
| 07-21 11:00 | 24.15°N
127.8°E | Severe Typhoon | 42 m/s
955 hPa | WNW |
| 07-22 01:00 | 23.68°N
126.2°E | Severe Typhoon | 42 m/s
955 hPa | SW |
| 07-22 11:00 | 23.45°N
126°E | Severe Typhoon | 42 m/s
955 hPa | N |
| 07-22 21:00 | 23.6°N
125.77°E | Severe Typhoon | 42 m/s
955 hPa | W |
| 07-23 07:00 | 24.1°N
125.42°E | Typhoon | 39 m/s
963 hPa | N |
| 07-23 17:00 | 24.7°N
125.05°E | Typhoon | 38 m/s
965 hPa | E |
| 07-24 03:00 | 25.63°N
124.88°E | Typhoon | 38 m/s
965 hPa | N |
| 07-24 13:00 | 27.15°N
124.3°E | Typhoon | 38 m/s
965 hPa | NNW |
| 07-24 23:00 | 28.3°N
123.9°E | Typhoon | 38 m/s
965 hPa | NNW |
| 07-25 09:00 | 29.77°N
122.93°E | Typhoon | 35 m/s
968 hPa | NW |
| 07-25 19:00 | 30.13°N
121.87°E | Severe Tropical Storm | 30 m/s
972 hPa | SW |
| 07-26 05:00 | 30.5°N
121.4°E | Severe Tropical Storm | 28 m/s
975 hPa | N |
| 07-26 15:00 | 30.87°N
120.8°E | Tropical Storm | 24 m/s
979 hPa | NW |
| 07-27 01:00 | 31.2°N
120.03°E | Tropical Storm | 20 m/s
985 hPa | W |
| 07-27 11:00 | 31.3°N
119.1°E | Tropical Storm | 20 m/s
985 hPa | W |
| 07-27 21:00 | 31.6°N
119°E | Tropical Storm | 18 m/s
985 hPa | N |
| 07-28 14:00 | 33.1°N
116.7°E | Tropical Depression | 15 m/s
985 hPa | W |
| 07-29 20:00 | 37.1°N
117.4°E | Tropical Depression | 15 m/s
992 hPa | NNE |
| 07-31 08:00 | 40.1°N
121°E | Tropical Depression | 13 m/s
995 hPa | NNE |
Sampled rows shown; all 211 track points are available on the interactive map or via the public API .
FAQ
Typhoon In-fa is the next typhoon in 2021.
The international code for Typhoon In-fa is 202106. It was the sixth typhoon of 2021, and its international name is IN-FA.
What is the highest level of Typhoon In-fa?
Typhoon In-fa peak intensity is Severe Typhoon, max wind 42m/s, minimum central pressure 955 hPa.
Where is the Typhoon In-fa?
2021-07-25 12:30:00 in ZhejiangZhoushanPutda coastal Landfall; 2021-07-26 09:50:00 in ZhejiangPing Lake Citycoastal Landfall.
Where can I view typhoon In-fa's live track map?
TyphoonSays (taifengshuo.com) provides typhoon In-fa's Track history map, multinational meteorological agency Forecast comparison, wind circle range with IntensityTrend, page address: https://taifengshuo.com/typhoon/202106.
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