The SummaryTyphoon Koni (international code 200907) is a 2009 Northwest Pacific typhoon; peak intensity Tropical Storm, max wind 23m/s, minimum central pressure 985hPa, not in China Landfall, 2009-08-09 was numbered off, recording 114 track points.
Typhoon Koni, international code 200907, international name Goni, 2009 Northwest Pacific typhoon. Formed: 2009-08-02 02:00:00, ended: 2009-08-09 14:00:00. Peak intensity: Tropical Storm, minimum central pressure: 985 hPa, max wind: 23m/s.
Typhoon Koni at 2009-08-02 02:00:00 at 17.9°N, 119.5°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Tropical Storm intensity with max winds of 23 m/s (~83 km/h) and a minimum central pressure of 985hPa, recorded at 2009-08-04 17:00:00.
2009-08-09 14:00:00 After, Typhoon Koni gradually weakened and was numbered off on 2009-08-09 14:00:00 was numbered off; its lifecycle recorded 114 track points.
The life cycle of the 7th Typhoon “Koni” began at 02:00 on August 2, 2009, ended at 14:00 on August 9, without landfall land. From the space trajectory, the Typhoon as a whole appeared first toward NW, then turned toward SW, and finally turned toward EN direction complex path. in the initial phase of August 2 to 5), the system center from lat 17.9°N, 119.5° near stable toward NW direction advanced, the latitude gradually increased to 22.1°N, the length of W shifted to 112.3°E, this phase is mainly affected by sub-tropical high-pressure guided gas flow, the path is relatively flat.
It is worth noting that after the 21st of August 5th, the Typhoon Moving direction was significantly reversed. The system did not continue deeper inland or N, but stagnated near 22° and turned toward SW. Between August 6th and August 8th, the Center dropped from lat 21.9°S to 18.4°, the length moved further W to 107.7°E, showing a rare 'rotating' or 'SW withdrawal' characteristic.
In terms of intensity changes, “Koni” alwaysined at the Tropical Storm or Nameless level, not reaching the typhoon level. its peak intensity appeared during August 4th, 18th to August 5th at 03:00, max wind reached 23m/s, minimum pressure dropped to 990hPa (Note: The data chart showed 985hPa on August 7th and 9th, but wind speedined 18m/s, combined with meteorological consciousness and pre-text peak, here with the observed minimum air pressure 985hPa as a reference, but the Max Wind peak is only 23m/s, belonging to the weaker tropical cyclone) .
与历届同名Typhoon 相比, 2009年“Koni”的Intensity显著偏弱. 数据显示, 2020年“Koni” (202019) 和2015年“Koni” (201515) 均发展为Super Typhoon, minimum pressure 分别低至905hPa和930hPa; 即便是2003年的同名Typhoon (200308) , 其peak intensity也达到了Typhoon 级, minimum pressure 为976hPa. 相比之下, 2009年“Koni”不仅peak intensity仅为Tropical Storm, 且最低气压 (985hPa) 高 at 其他年份同期水平, 表明其能量积累不足, 结构相对松散, 是近年来同名Typhoon 中Intensity最弱的一次过程.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 2009-08-02 02:00:00 | 17.9°N | 119.5°E | Nameless | 16 | 992 | NWW |
| 2009-08-03 14:00:00 | 19.2°N | 115.6°E | Nameless | 16 | 992 | NNW |
| 2009-08-04 03:00:00 | 20°N | 114.9°E | Tropical Storm | 18 | 992 | N |
| 2009-08-04 09:00:00 | 20.5°N | 114.1°E | Tropical Storm | 20 | 992 | NNW |
| 2009-08-04 15:00:00 | 21.1°N | 113.9°E | Tropical Storm | 20 | 992 | NNW |
| 2009-08-04 21:00:00 | 21.6°N | 113.5°E | Tropical Storm | 23 | 990 | NNW |
| 2009-08-05 03:00:00 | 21.8°N | 112.9°E | Tropical Storm | 23 | 990 | NW |
| 2009-08-05 09:00:00 | 21.8°N | 112.6°E | Tropical Storm | 20 | 992 | NWW |
| 2009-08-05 15:00:00 | 22°N | 112.4°E | Tropical Storm | 20 | 992 | NWW |
| 2009-08-05 21:00:00 | 22.1°N | 112.3°E | Tropical Storm | 20 | 992 | NWW |
| 2009-08-06 05:00:00 | 22.1°N | 111.9°E | Nameless | 16 | 995 | W |
| 2009-08-06 23:00:00 | 21.1°N | 110.3°E | Nameless | 16 | 998 | null |
| 2009-08-07 15:00:00 | 20°N | 109.1°E | Tropical Storm | 18 | 985 | SW |
| 2009-08-07 21:00:00 | 19.9°N | 108.9°E | Tropical Storm | 18 | 985 | SE |
| 2009-08-08 03:00:00 | 19.5°N | 108.5°E | Tropical Storm | 18 | 985 | S |
| 2009-08-08 09:00:00 | 19.1°N | 108.3°E | Tropical Storm | 18 | 985 | SWW |
| 2009-08-08 15:00:00 | 18.7°N | 107.6°E | Tropical Storm | 18 | 985 | SWW |
| 2009-08-08 21:00:00 | 18.2°N | 108.2°E | Tropical Storm | 18 | 985 | SEE |
| 2009-08-09 03:00:00 | 18°N | 109°E | Tropical Storm | 18 | 985 | SEE |
| 2009-08-09 14:00:00 | 18.8°N | 112.5°E | Nameless | 16 | 990 | SEE |
Sampled rows shown; all 114 track points are available on the interactive map or via the public API .
Typhoon Koni's international code is 200907, is 2009 Typehoon No. 7, international name Goni.
Typhoon Koni peak intensity is Tropical Storm, max wind 23m/s, minimum central pressure 985 hPa.
According to records, the Typhoon Koni is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Koni's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/200907.
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