The SummaryTyphoon Yanni (international code 199808) is a 1998 Northwest Pacific typhoon; peak intensity Typhoon, max wind 41m/s, minimum central pressure 965hPa, not in China Landfall, 1998-10-02 was numbered off, recorded 32 track points.
Typhoon Yanni, international code 199808, international name YANNI, 1998 Northwest Pacific typhoon. Formed: 1998-09-24 06:00:00, ended: 1998-10-02 00:00:00. Peak intensity: Typhoon , minimum central pressure: 965 hPa, max wind: 41m/s.
Typhoon Yanni at 1998-09-24 06:00:00 at 12.9°N, 134.2°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Typhoon intensity with max winds of 41 m/s (~148 km/h) and a minimum central pressure of 965hPa, recorded at 1998-09-29 00:00:00.
Typhoon Yanni gradually weakened and was numbered off on 1998-10-02 00:00:00 was numbered off; its lifecycle recorded 32 track points.
Typhoon Yanni (199808) 的生命周期始 at Northwest Pacific洋面, 整体路径呈现典型的“NW-NE”抛物线型Moving特征. formed初期 (9月24日至26日) , 系统自134.2°E附近 toward NW direction稳定Moving, The latitude从12.9°N迅速N抬至20.5°N, DuringW进约9个经纬度, 显示出受副热带高压S侧引导气流影响的典型轨迹. 9月27日至28日, 随着纬度突破22°N, Moving direction逐渐由纯NW toward 转为N, 并在28日18时左右 at 25.3°N, 123°E附近出现明显的路径转折. 此后, 系统加速 toward NE, 直至9月30日到达最N端34.4°N. 在生命末期 (10月1日至2日) , Typhoon 中心开始 toward S回落, 最终在29.7°N, 128.9°E附近减弱消散. 全过程无Landfall记录, 始终在海上活动.
Yanni的Intensity变化经历了缓慢增强, 快速爆发及迅速衰减三个阶段. 初生阶段为Nameless, 维持Time较长, 从9月24日至27日中午, wind speed长期维持在7-15m/s区间, 历时约3天半才升级为Tropical Storm. 9月27日18时后, 系统Go to 快速增强期, 仅用12h便由Tropical Storm (23m/s) intensified into Typhoon (33m/s) , 并 at 9月29日06时在27.4°N达到peak intensity, max wind 录得41m/s. 然而, 巅峰状态维持Time极短, 随着系统 toward N深入较高The latitude海域, 环境条件恶化, intensity 急剧下滑. 从巅峰到 weakened into Severe Tropical Storm仅耗时12h, 至9月30日18时已降级为Nameless. 整个生命周期持续约8天, 其中高Intensity维持Time较短, 表现出“慢热快消”的Intensity演变特征.
As the 8th Typhoon in 1998, Yanni's peak intensity is set to Typhoon level (41m/s). In the same year's Typhoon sequence, the Intensity is at the middle level, not reaching the Severe Typhoon or Super Typhoon level. Unlike the Yanni's peak intensity of the WLandfall E continent directly after forming in the W Pacific, Yanni's path is more inclined toward toward high latitude turn toward, with its most N end reaching 34.4°N, close to the sea latitude of Japan S, but does not cause a direct land impact.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1998-09-24 06:00:00 | 12.9°N | 134.2°E | Nameless | 7 | - | |
| 1998-09-24 18:00:00 | 14.6°N | 132.8°E | Nameless | 10 | - | |
| 1998-09-25 06:00:00 | 16.5°N | 130.7°E | Nameless | 15 | - | |
| 1998-09-25 18:00:00 | 18.2°N | 128.3°E | Nameless | 15 | - | |
| 1998-09-26 06:00:00 | 19.4°N | 126.4°E | Nameless | 15 | 1002 | |
| 1998-09-26 18:00:00 | 20.5°N | 124.9°E | Nameless | 15 | 1002 | |
| 1998-09-27 06:00:00 | 21.5°N | 123.7°E | Nameless | 15 | 1002 | |
| 1998-09-27 18:00:00 | 22.5°N | 122.4°E | Tropical Storm | 23 | 1000 | |
| 1998-09-28 06:00:00 | 23.8°N | 122.4°E | Typhoon | 33 | 992 | |
| 1998-09-28 18:00:00 | 25.3°N | 123°E | Typhoon | 38 | 980 | |
| 1998-09-29 06:00:00 | 27.4°N | 124.4°E | Typhoon | 41 | 970 | |
| 1998-09-29 18:00:00 | 30.9°N | 126.2°E | Typhoon | 33 | 970 | |
| 1998-09-30 06:00:00 | 34.4°N | 127.1°E | Severe Tropical Storm | 25 | 980 | |
| 1998-09-30 18:00:00 | 34.4°N | 127.5°E | Nameless | 17 | 996 | |
| 1998-10-01 06:00:00 | 33°N | 128.1°E | Nameless | 12 | 1000 | |
| 1998-10-01 18:00:00 | 30.9°N | 128.6°E | Nameless | 12 | - | |
| 1998-10-02 00:00:00 | 29.7°N | 128.9°E | Nameless | 10 | - |
Sampled rows shown; all 32 track points are available on the interactive map or via the public API .
International code for Typhoon Yanni is 199808, is 1998 number 8 Typhoon, international name YANNI.
Typhoon Yanni peak intensity is Typhoon , max wind 41m/s, minimum central pressure 965 hPa.
According to records, Typhoon Yanni is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Yanni's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/199808.
Basemap
Weather Layers (multi-select)
Precipitation
Tools
Weather data: NASA GIBS / OpenWeatherMap / Open-Meteo / NOAA WW3, for reference only
TyphoonSays AI assistant · answers for reference