The SummaryTyphoon Keith (international code 199722) is a 1997 Northwest Pacific typhoon; peak intensity Super Typhoon, max wind 79m/s, minimum central pressure 910hPa, not in China Landfall, 1997-11-09 was numbered off, recording 73 track points.
Typhoon Keith, international code 199722, international name KEITH, 1997 Northwest Pacific typhoon. Formed: 1997-10-22 12:00:00, ended: 1997-11-09 12:00:00. Peak intensity: Super Typhoon, minimum central pressure: 910 hPa, max wind: 79m/s.
Typhoon Keith at 1997-10-22 12:00:00 at 6.5°N, 175.5°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Super Typhoon intensity with max winds of 79 m/s (~284 km/h) and a minimum central pressure of 910hPa, recorded at 1997-11-01 12:00:00.
1997-11-09 12:00:00 After, Typhoon Keith gradually weakened and was numbered off on 1997-11-09 12:00:00 was numbered off; its lifecycle recorded 73 track points.
Typhoon Keith (199722) 的生命史始 at Northwest Pacific远洋海域, formed at 1997年10月22日12时, 初始Position位 at 6.5°N, 175.5°E. 在生命初期, 系统主要呈现 toward WN direction缓慢Moving的Trend, 从10月22日至10月28日期间, The latitude基本维持在6°N至7.6°N之间, During由175.5°EW移至167.9°E, Moving速度相对平缓. 10月30日后, 随着Intensity提升为Severe Tropical Storm, 其Moving路径开始显著 toward N分量增加, 并加速 toward NW direction推进.
Before November 5, the system continued toward NW, the length from 162°E quickly W into 134.9°E. However, on November 5 at 00, after reaching 18°N, near 134.9°E, the path occurred a significant reversal. In the following days, the Typhoon gradually turned to NE, the length from 134.9°E re-expanding to 179.2°E, the latitude increased significantly from 18°N to 37.7°N. This typical “pull-line” path indicates that the system was influenced by wind-led flow in the later period, completing the process of transformation from low latitude to Wward to high latitude to E. Thro the life cycle, KeithLandfall did not have any land, always on the ocean.
From October 22 when formed Nameless (7m/s) to October 28 stillins NamelessIntensity (17m/s), lasting a week Time develops slowly. however, since October 30 enhanced to Severe Tropical Storm (28m/s), the system Go to rapid enhancement phase.
Peak intensity appeared on November 2 at 00, at the center point at 13.9°N, 147.2°E, max wind reached astonishing 79m/s, confirmed Super Typhoon level. After that, althoughined Super Typhoon or high Intensity Typhoon state during November 3 to 5 (wind speed between 59m/s to 64m/s), but as the latitude increased and the path turned toward, the system began to weaken. After November 6th, wind speed dropped to 46m/s below, converted to Severe Typhoon and ordinary Typhoon level. Before November 9 disappeared, has weakened into Tropical Storm (23m/s) . As the 22nd Typhoon in 1997, Keith demonstrated extremely strong explosive power, its 79s/s wind peak speed when Typhoon was listed
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1997-10-22 12:00:00 | 6.5°N | 175.5°E | Nameless | 7 | - | |
| 1997-10-23 12:00:00 | 6.8°N | 174.5°E | Nameless | 7 | - | |
| 1997-10-24 12:00:00 | 7.1°N | 173.5°E | Nameless | 10 | - | |
| 1997-10-25 12:00:00 | 7.6°N | 172.5°E | Nameless | 10 | - | |
| 1997-10-26 12:00:00 | 7.6°N | 171.4°E | Nameless | 10 | - | |
| 1997-10-27 12:00:00 | 6°N | 169.3°E | Nameless | 15 | - | |
| 1997-10-28 12:00:00 | 6.2°N | 167.9°E | Nameless | 17 | - | |
| 1997-10-29 12:00:00 | 6.8°N | 164.1°E | Tropical Storm | 23 | - | |
| 1997-10-30 12:00:00 | 8.3°N | 159.7°E | Typhoon | 38 | 985 | |
| 1997-10-31 12:00:00 | 10.1°N | 155.6°E | Super Typhoon | 64 | 960 | |
| 1997-11-01 12:00:00 | 12.7°N | 150.1°E | Super Typhoon | 79 | 925 | |
| 1997-11-02 12:00:00 | 14.8°N | 144.3°E | Super Typhoon | 74 | 910 | |
| 1997-11-03 12:00:00 | 15.9°N | 139.2°E | Super Typhoon | 64 | 920 | |
| 1997-11-04 12:00:00 | 17°N | 135.6°E | Super Typhoon | 64 | 935 | |
| 1997-11-05 12:00:00 | 19.1°N | 135.4°E | Super Typhoon | 53 | 945 | |
| 1997-11-06 12:00:00 | 22.3°N | 137.7°E | Severe Typhoon | 46 | 965 | |
| 1997-11-07 12:00:00 | 26.5°N | 143.1°E | Typhoon | 38 | 965 | |
| 1997-11-08 12:00:00 | 31.7°N | 157.3°E | Severe Tropical Storm | 30 | 992 | |
| 1997-11-09 12:00:00 | 37.7°N | 179.2°E | Tropical Storm | 23 | - |
Sampled rows shown; all 73 track points are available on the interactive map or via the public API .
Typhoon Keith's international code is 199722, is 1997 number 22 Typhoon, international name KEITH.
Typhoon Keith peak intensity is Super Typhoon, max wind 79m/s, minimum central pressure 910 hPa.
According to records, Typhoon Keith is not in our coastal Landfall.
TyphoonSays (taifengshuo.com) provides typhoon Keith's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/199722.
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