The SummaryTyphoon Rai (international code 202122) is a 2021 Northwest Pacific typhoon; peak intensity Super Typhoon, max wind 58m/s, minimum central pressure 925hPa, not in China Landfall, 2021-12-21 was numbered off, recorded 112 track points.
Typhoon Rai, international code 202122, international name Rai, 2021 Northwest Pacific typhoon. Formed: 2021-12-13 14:00:00, ended: 2021-12-21 07:00:00. Peak intensity: Super Typhoon, minimum central pressure: 925 hPa, max wind: 58m/s.
Typhoon Rai at 2021-12-13 14:00:00 at 5.5°N, 140.9°E 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)'s life began at the low-latitude waters of the Northwest Pacific, and the overall path showed a significant W-line trend, and a noticeable N-turn toward in the later stages.The initial stage, after the system formed from 5.5°N, 140.9°E, quickly toward W, crossing the Philippines to E-zone.During the period of December 13 to December 18, its latitude changes were relatively sluggish, rising from 5.5°N slowly to 11.2°N, and the length of the system shifted significantly from 140.9°EW to 114.9°E, showing a strong and stable W-line guiding flow.
When the Center reached near 113°E, the Typhoon Moving direction gradually shifted from pure W to NW, then further toward N. After December 20, as the latitude climbed rapidly from 15.7°N to 20.6°N, the length changes slowed even slightly E back (110.6°E to 113.9°E) , indicating that the system had Go to turn toward phase, eventually weakening the sea area in S Sea N. There were no landfall records during the entire life cycle, the main activity at the open ocean.
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 is far greater than that of the 15th Typhoon 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, 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 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 Rai peak intensity is Super Typhoon, max wind 58m/s, minimum central 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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