The SummaryTyphoon Neil (international code 199904) is a 1999 Northwest Pacific typhoon; peak intensity Tropical Storm, max wind 20m/s, minimum central pressure 980hPa, not in China Landfall, 1999-07-28 was numbered off, recording 20 track points.
Typhoon Neil, international code 199904, international name NEIL, 1999 Northwest Pacific typhoon. Formed: 1999-07-23 18:00:00, ended: 1999-07-28 12:00:00. Peak intensity: Tropical Storm, minimum central pressure: 980 hPa, max wind: 20m/s.
Typhoon Neil at 1999-07-23 18:00:00 at 18.3°N, 123.5°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Tropical Storm intensity with max winds of 20 m/s (~72 km/h) and a minimum central pressure of 980hPa, recorded at 1999-07-26 06:00:00.
1999-07-28 12:00:00 After, Typhoon Neil gradually weakened and was numbered off on 1999-07-28 12:00:00 was numbered off; its lifecycle recorded 20 track points.
Typhoon Neil (199904) 的生命周期始 at Philippines以E洋面, 整体呈现典型的“NW-N-NE”抛物线型Moving路径. formed初期 (7月23日至24日) , 系统稳定 toward NW, The latitude从18.3°N缓慢提升至21.3°N, During由123.5°E推进至126.1°E. 7月25日凌晨至傍晚, 路径出现显著转折, Moving direction逐渐由NW转为正N, 随后在7月26日凌晨进一步转 toward NE. 这一转 toward 过程主要发生 at 26°至30°之间, 符合中纬度W风带引导气流影响的典型特征. 整个生命周期内, 该Typhoon 未Landfall任何陆地, 始终在海上活动, 最终 at 7月28日中午在朝鲜半岛以E海域减弱消散, 终点坐标位 at 37.5°N, 127.9°E.
Neil's Intensity evolution is characterized by 'slow enhancement - short peak - rapid weakening'.The initial stage is Nameless, max windins at 10m/s. From July 25, 06:00, wind speed begins a small increase, to July 26, 06:00 to peak intensity, upgrade to Tropical Storm, max wind 20m/s. It is worth noting that its peak stateins a shorter time, only about 12h (July 26, 06:00 to 18:00) , during wind speed remains 20m/s unchanged. After July 27, 00:00, as the system toward N deeper into the high latitude sea, intensity rapidly decreases, declines to Nameless, wind speed from 17m/s rapidly drops to 7m/s. The overall minimum air pressure data is missing, but according to wind speed changes
In the Typhoon naming table, 'Neil' is the cyclical usage name. Compared to the Severe Typhoon class 'Neil' that may appear at other years, the 4th Typhoon NeilIntensity of 1999 is markedly weak. Its highest grade is only Tropical Storm (20m/s), not reaching the Severe Tropical Storm or Typhoon level. such a weak Intensity, no Landfall, fast turn toward N, is more common in the Northwest Pacific summer Typhoon, usually with smaller direct winds on land, mainly as a distant ocean weather system.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1999-07-23 18:00:00 | 18.3°N | 123.5°E | Nameless | 10 | 994 | |
| 1999-07-24 00:00:00 | 18.7°N | 124.1°E | Nameless | 10 | 996 | |
| 1999-07-24 06:00:00 | 19.4°N | 124.8°E | Nameless | 10 | 996 | |
| 1999-07-24 12:00:00 | 20.4°N | 125.2°E | Nameless | 10 | 996 | |
| 1999-07-24 18:00:00 | 21.3°N | 126.1°E | Nameless | 10 | 994 | |
| 1999-07-25 00:00:00 | 22.2°N | 127°E | Nameless | 10 | 992 | |
| 1999-07-25 06:00:00 | 23.3°N | 127.8°E | Nameless | 12 | 990 | |
| 1999-07-25 12:00:00 | 24.1°N | 128.6°E | Nameless | 15 | 985 | |
| 1999-07-25 18:00:00 | 26.2°N | 128.2°E | Nameless | 15 | 980 | |
| 1999-07-26 00:00:00 | 27.5°N | 128.8°E | Nameless | 17 | 980 | |
| 1999-07-26 06:00:00 | 28.9°N | 128.8°E | Tropical Storm | 20 | 980 | |
| 1999-07-26 12:00:00 | 30.4°N | 128.4°E | Tropical Storm | 20 | 980 | |
| 1999-07-26 18:00:00 | 32°N | 127.9°E | Tropical Storm | 20 | 980 | |
| 1999-07-27 00:00:00 | 33.7°N | 127.3°E | Nameless | 17 | 985 | |
| 1999-07-27 06:00:00 | 34.7°N | 126.9°E | Nameless | 15 | 985 | |
| 1999-07-27 12:00:00 | 35.8°N | 126.5°E | Nameless | 12 | 990 | |
| 1999-07-27 18:00:00 | 36.5°N | 126.2°E | Nameless | 12 | 990 | |
| 1999-07-28 00:00:00 | 37.1°N | 126.4°E | Nameless | 10 | 996 | |
| 1999-07-28 06:00:00 | 37.3°N | 126.8°E | Nameless | 7 | 998 | |
| 1999-07-28 12:00:00 | 37.5°N | 127.9°E | Nameless | 7 | 1000 |
International code for Typhoon Neil is 199904, is 1999 Typehoon number 4, international name NEIL.
Typhoon Neil peak intensity is Tropical Storm, max wind 20m/s, minimum central pressure 980 hPa.
According to records, Typhoon Neil is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Neil's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/199904.
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