Typhoon Rai, international code 202122, international name Rai, 2021年Northwest PacificTyphoon . formedTime: 2021-12-13 14:00:00, 结束Time: 2021-12-21 07:00:00. peak intensity: Super Typhoon, 最低Pressure: 925 hPa, max wind : 58m/s.
Typhoon Rai at 2021-12-13 14:00:00 at 5.5°, lng 140.9° over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Super Typhoon intensity with max winds of 58 m/s (~209 km/h) and a minimum central pressure of 925hPa, recorded at 2021-12-16 08:00:00.
2021-12-21 07:00:00 After, Typhoon Rai gradually weakened and was numbered off on 2021-12-21 07:00:00 was numbered off; its lifecycle recorded 112 track points.
Typhoon Rai (202122) 的生命史始 at Northwest Pacific低纬海域, 整体路径呈现显著的W行Trend, 并在后期出现明显的N折转 toward . 初始阶段, 系统自5.5°N, 140.9°E formed后, 迅速 toward W, 横穿Philippines以E海域. 在12月13日至12月18日期间, 其The latitude变化相对平缓, 从5.5°N缓慢N抬至11.2°N, During则从140.9°E大幅W移至114.9°E, 显示出强劲且稳定的W行引导气流作用.
路径的关键转折点出现在12月18日夜间至19日凌晨. 当Center到达113°E附近时, Typhoon Moving direction由纯W行逐渐转为NW行, 随后进一步 toward N偏移. 12月20日后, 随着The latitude快速从15.7°N攀升至20.6°N, During变化趋缓甚至略有E退 (110.6°E至113.9°E) , 表明系统已Go to 转 toward 阶段, 最终在S海N部海域减弱消散. 全生命周期内无Landfall记录, 主要活动 at 开阔洋面.
Rai's Intensity evolution has the typical characteristics of "fast enhancement, high maintenance, slow weakening".The system in less than 3 days after formed, from Tropical Storm (18m/s) rapidly evolved to Super Typhoon (58m/s), the center's lowest air pressure dropped to 925hPa, this peak intensity appeared on December 16 at 08:00. It is noteworthy that late December 18th to 19th morning, Rai underwent a second reinforcement process, wind speed returned from 48m/s to 55m/s, air pressure dropped to 930hPa, showing its core cohesiveness still strong under adverse environments.
Compared with the same name Typhoon, the destruction potential of the RAI in 2021 far exceeds the 15th Typehoon Rai in 2016. data show that the RAI peak in 2016 is only Tropical Storm level, minimum pressure 996hPa; and in 2021, the RAI not only crossed multiple intensity levels to reach the Super Typhoon standard, its minimum air pressure is lower than 71hPa°E, max wind is higher than 40m/s. This huge Intensity difference highlights the extreme characteristics of the RAI in 2021 as the end of the Severe Typhoon, its energy accumulation and release process is more rare in the recent period of the Typhoon.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 2021-12-13 14:00:00 | 5.5°N | 140.9°E | Tropical Storm | 18 | 998 | NWW |
| 2021-12-14 14:00:00 | 7.5°N | 136.2°E | Severe Tropical Storm | 25 | 985 | NWW |
| 2021-12-15 14:00:00 | 9°N | 131.4°E | Typhoon | 35 | 970 | NWW |
| 2021-12-16 08:00:00 | 9.6°N | 127.7°E | Super Typhoon | 58 | 925 | W |
| 2021-12-17 02:00:00 | 10.2°N | 122.5°E | Severe Typhoon | 45 | 950 | W |
| 2021-12-17 20:00:00 | 10.3°N | 118.8°E | Severe Typhoon | 45 | 950 | W |
| 2021-12-18 04:00:00 | 11.1°N | 117.1°E | Severe Typhoon | 45 | 950 | W |
| 2021-12-18 10:00:00 | 11.1°N | 115.6°E | Severe Typhoon | 48 | 945 | NWW |
| 2021-12-18 16:00:00 | 11.4°N | 114.3°E | Super Typhoon | 52 | 935 | NWW |
| 2021-12-18 22:00:00 | 12°N | 113°E | Super Typhoon | 55 | 930 | NW |
| 2021-12-19 04:00:00 | 12.7°N | 112°E | Super Typhoon | 55 | 930 | NW |
| 2021-12-19 10:00:00 | 13.4°N | 111.2°E | Super Typhoon | 55 | 930 | NNW |
| 2021-12-19 16:00:00 | 14.4°N | 110.6°E | Severe Typhoon | 50 | 940 | N |
| 2021-12-19 22:00:00 | 15.4°N | 110.6°E | Typhoon | 40 | 960 | NNE |
| 2021-12-20 04:00:00 | 16°N | 110.6°E | Typhoon | 38 | 965 | NNE |
| 2021-12-20 10:00:00 | 17.4°N | 110.8°E | Typhoon | 35 | 970 | NNE |
| 2021-12-20 16:00:00 | 18.6°N | 111.3°E | Severe Tropical Storm | 28 | 985 | NE |
| 2021-12-20 22:00:00 | 19.2°N | 112.2°E | Tropical Storm | 23 | 992 | NE |
| 2021-12-21 04:00:00 | 20°N | 113°E | Tropical Storm | 18 | 1004 | NE |
| 2021-12-21 07:00:00 | 20.6°N | 113.9°E | Tropical Storm | 18 | 1004 | NEE |
Sampled rows shown; all 112 track points are available on the interactive map or via the public API .
The international code for Typhoon Rai is 202122, which is the 22nd Typhoon in 2021, the international name Rai.
Typhoon Raipeak intensity is Super Typhoon°E, max wind 58m/s, minimum Pressure 925 hPa.
According to records, Typhoon Rai is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Rai's Track history map, multinational meteorological agency Forecast comparison, windshield range with IntensityTrend, page address: https://taifengshuo.com/typhoon/202122.
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