The SummaryTyphoon Sonamu (international code 201301) is a 2013 Northwest Pacific typhoon; peak intensity Tropical Storm, max wind 23m/s, minimum central pressure 992hPa, not in China Landfall, 2013-01-08 was numbered off, recorded 37 track points.
Typhoon Sonamu, international code 201301, international name Sonamu, 2013 Northwest Pacific typhoon. Formed: 2013-01-03 20:00:00, ended: 2013-01-08 08:00:00. Peak intensity: Tropical Storm, minimum central pressure: 992 hPa, max wind: 23m/s.
Typhoon Sonamu at 2013-01-03 20:00:00 at 9.1°N, 119.5°E over the Northwest Pacific; initial intensity: Tropical Storm.
It peaked at Tropical Storm intensity with max winds of 23 m/s (~83 km/h) and a minimum central pressure of 992hPa, recorded at 2013-01-05 08:00:00.
2013-01-08 08:00:00 After, Typhoon Sonamu gradually weakened and was numbered off on 2013-01-08 08:00:00 was numbered off; its lifecycle recorded 37 track points.
2013年第1号Typhoon “Sonamu”的生命史始 at 2013年1月3日20时, 终 at 1月8日08时, 全程维持热带气旋级别, 未发生Landfall. 从空间轨迹来看, 该Typhoon 整体呈现显著的W行Trend, 并伴随轻微的 toward S摆动. formed初期 (1月3日20时至1月4日05时) , 系统位 at lat 9度附近, lng 116-119度海域, 主要 toward WS. 随后, 路径转 toward 更为纯粹的W toward , 横穿SHainan部海域.
It is worth noting that after reaching the maximum W-end length of 111.9°E on January 5th at 8 p.m., the Typhoon center continued toward W toward 110.0°E on January 6th at 11 p.m., followed by a marked twist toward SWTrend. Between January 6th at 20 p.m. and January 8th at 8 p.m., the latitude continued to decline from 7.4°N to 5.9°N, while the length changes slowed (109.4°E to 108.1°E) , indicating a change in the guiding airflow, resulting in its Moving speed slowing and toward low-latitude waters rotating.
在Intensity变化方面, “Sonamu”表现为典型的“快速增强-稳定维持-缓慢减弱”特征. 初始阶段Pressure为1002hPa, max wind 18m/s. 经过约36h的加强, at 1月5日08时达到巅峰状态, 此时中心最低气压降至992hPa, max wind 增至23m/s, intensity 等级确认为Tropical Storm. 巅峰状态维持Time较长, 从1月5日08时至1月6日11时, max wind 稳定在23m/s, 气压在992-994hPa之间小幅波动, 显示出结构相对稳定.
1月6日20时起, 系统开始减弱, 气压回升至998hPa, wind speed降为20m/s. 至生命末期 (1月8日08时) , Pressure升至1004hPa, max wind 降至15m/s, 降级为Nameless. 与同名Typhoon 对比, 2000年第17号Typhoon “Sonamu”peak intensity曾达到Typhoon 级, 而2013年“Sonamu”仅达到Tropical Storm级, 且最低气压992hPa远高 at 2000年同级Typhoon (具体数值虽未给出, 但等级差异明显) , 表明2013年首台Intensity较弱, 属 at 弱热带气旋过程.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 2013-01-03 20:00:00 | 9.1°N | 119.5°E | Tropical Storm | 18 | 1002 | W |
| 2013-01-04 02:00:00 | 8.9°N | 116.5°E | Tropical Storm | 18 | 1002 | SWW |
| 2013-01-04 08:00:00 | 8.7°N | 116.3°E | Tropical Storm | 18 | 1002 | SWW |
| 2013-01-04 14:00:00 | 8.6°N | 115.6°E | Tropical Storm | 20 | 1000 | SWW |
| 2013-01-04 20:00:00 | 9°N | 114°E | Tropical Storm | 20 | 998 | W |
| 2013-01-05 02:00:00 | 8.7°N | 113°E | Tropical Storm | 20 | 998 | SWW |
| 2013-01-05 08:00:00 | 8.3°N | 111.9°E | Tropical Storm | 23 | 992 | WSW |
| 2013-01-05 14:00:00 | 7.9°N | 111.4°E | Tropical Storm | 23 | 992 | W |
| 2013-01-05 20:00:00 | 7.8°N | 110.7°E | Tropical Storm | 23 | 994 | SWW |
| 2013-01-06 02:00:00 | 7.4°N | 110.2°E | Tropical Storm | 23 | 994 | SWW |
| 2013-01-06 08:00:00 | 7.2°N | 110°E | Tropical Storm | 23 | 994 | WSW |
| 2013-01-06 14:00:00 | 7.4°N | 109.7°E | Tropical Storm | 23 | 994 | W |
| 2013-01-06 20:00:00 | 7.4°N | 109.4°E | Tropical Storm | 20 | 998 | W |
| 2013-01-07 02:00:00 | 7.3°N | 108.5°E | Tropical Storm | 18 | 998 | SWW |
| 2013-01-07 08:00:00 | 6.7°N | 108.3°E | Tropical Storm | 23 | 994 | WSW |
| 2013-01-07 14:00:00 | 6.3°N | 108.1°E | Tropical Storm | 20 | 998 | SSW |
| 2013-01-07 20:00:00 | 6.2°N | 108.1°E | Tropical Storm | 18 | 1000 | S |
| 2013-01-08 02:00:00 | 6.2°N | 108°E | Nameless | 16 | 1002 | SSW |
| 2013-01-08 08:00:00 | 5.9°N | 108.1°E | Nameless | 15 | 1004 | SSE |
Sampled rows shown; all 37 track points are available on the interactive map or via the public API .
Typhoon Sonamu's international code is 201301, is 2013's 1st Typhoon, international name Sonamu.
Typhoon Sonamu peak intensity is Tropical Storm, max wind 23m/s, minimum central pressure 992 hPa.
According to records, Typhoon Sonamu is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Sonamu's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/201301.
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