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TC Watch / 熱帶氣旋 > Selected TC Review / 重要熱帶氣旋回顧 > 202424W (YINXING 銀杏) [Refresh 更新]

202424W (YINXING 銀杏) - Profile 檔案

(First draft issued on November 20, 2024, final version issued on May 3, 2025)
(初稿於 2024 年 11 月 20 日發出，最後版本於 2025 年 5 月 3 日上載)

Brief profile of YINXING | 銀杏小檔案:

^Refers to the period between the HK Observatory's first and last bulletins for the tropical cyclone (with at least tropical depression intensity). For storms formed/dissipated/transformed into an extratropical cyclone outside the area bounded by 7-36°N and 100-140°E, information from the JTWC will be used instead.
^即香港天文台為該熱帶氣旋（熱帶低氣壓級或更高）作出發佈的時期。至於在北緯 7 至 36 度、東經 100 至 140 度外形成／消散／轉化為溫帶氣旋的風暴，本網將參考聯合颱風警報中心的資料。

TC signals in Hong Kong* 香港曾經生效的熱帶氣旋警告*:

Signal 信號	Date and time 日期和時間	Distance from HK 與香港的距離	Predicted movement 預測移動趨勢	Max. 10-min winds 中心最高十分鐘平均風速
	2024/11/08 (FRI) 12:40 HKT	SE 630 km	W at 18 km/h	165 km/h (90 knots, ST)
	2024/11/09 (SAT) 15:40 HKT	S 370 km	WNW at 10 km/h	185 km/h (100 knots, SuT)
	2024/11/10 (SUN) 10:20 HKT	SSW 400 km	SW Slowly	155 km/h (85 knots, ST)
	2024/11/10 (SUN) 15:20 HKT	SSW 420 km	SW at 12 km/h	145 km/h (80 knots, T)

*Based on the information from real-time tropical cyclone warning bulletins.
*根據實時熱帶氣旋警報資料。

Percentile Ranks 百分等級:

IR imagery animation 紅外線雲圖動畫:

TC track from HKWW 本站的熱帶氣旋路徑圖:

TC track(s) from HKO 天文台的熱帶氣旋路徑圖:

Past HKWW Bulletins 本站發佈

Please click here for bulletins on this tropical cyclone. 請按這裡。

Storm Development Overview 風暴發展概覽

Unless otherwise stated, all times below are in Hong Kong Standard Time (UTC+8)
除非特別註明，下文時間均為香港標準時間（協調世界時加 8 小時）

YINXING originally formed as tropical disturbance 90W in the northwestern Pacific near Yap. The JTWC issued a tropical cyclone formation alert at 8 am November 3, while the JMA issued a gale warning at the same time. 90W's core developed further later that day, and the JTWC upgraded it into tropical depression 24W at 2 pm. In its initial bulletin, 24W was forecast to move northwest along the southwestern periphery of the subtropical ridge in the next three days, but would then slow down in response to a weakening of the ridge. Most numerical models predicted that 24W would stagnate but turn west, as the weakness in the ridge was not expected to be deep enough for 24W to escape to the north.

In the night of November 3, convective bursts developed near 24W's centre. The JMA upgraded it into a tropical storm at 2 am November 4, and named it YINXING. Numerical models quickly converged to the outcome that YINXING would turn west and skirt northern Luzon before entering the South China Sea. Benefiting from warm seas and weak vertical wind shear, YINXING intensified quickly and reached severe tropical storm strength by the end of November 4. It further intensified into a typhoon in the morning of November 5, and started to turn west-northwest on November 6.

As YINXING turned west, it slowed down appreciably. An eye appeared from within the central dense overcast near noon on November 6, and its core structure improved further in the rest of that day and on November 7. YINXING reached peak intensity near 2 pm November 7, with an estimated intensity of 125 knots (232 km/h) by the JTWC (later revised to 130 knots or 241 km/h), 62 m/s (223 km/h) by the NMC, 210 km/h by the HKO, and 95 knots (176 km/h) by the JMA. It made two landfalls in northern Luzon, once in the municipality of Santa Ana, Cagayan near 3:40 pm, and another in the municipality of Sanchez Mira more than five hours later. Around the time of its second landfall, YINXING dipped south and clipped the northwestern corner of Luzon. As a result, the storm weakened significantly and its eye disappeared from satellite images.

YINXING moved into the South China Sea in the small hours of November 8. As the subtropical ridge north of YINXING recovered, the storm picked up speed and continued to move west. The storm intensified again in the warm South China Sea as its eye reappeared and convections tightened. Having previously downgraded YINXING into a severe typhoon, the HKO upgraded it into a super typhoon again near 2 am November 9. YINXING moved west-northwest and decelerated that day.

A surge of northeast monsoon was affecting northern South China Sea at that time. Increased levels of vertical wind shear and the intrusion of drier air eroded YINXING gradually on November 10. Its eye filled and the deep convections dissipated later that day. Being a much weaker system, YINXING was guided by the low-level steering flow to the southwest. There were some convective bursts during the final stretch of YINXING's journey, but the storm continued to weaken in the process. YINXING weakened into a tropical storm on November 11, and further into a tropical depression on November 12. It reduced into an area of low pressure as it made landfall in Vietnam in the afternoon of November 12.

銀杏最初於雅蒲島一帶海域形成，其前身為熱帶擾動 90W。聯合颱風警報中心於 11 月 3 日上午 8 時對其發出熱帶氣旋形成警報，而同時日本氣象廳則發出烈風警告。90W 的核心當日有所發展，聯合颱風警報中心於下午 2 時將其升格為熱帶低氣壓 24W。當時預料 24W 將於其後三天沿副熱帶高壓脊西南部向西北移動，隨後因應副高減弱而有所減速。大部份數值模式預測 24W 將停滯，但由於副高弱點不至於令 24W 向北逃離，預料其後風暴會轉向偏西移動。

11 月 3 日晚，24W 近中心有對流爆發。日本氣象廳於 4 日上午 2 時將 24W 升格為熱帶風暴，命名為銀杏。各數值模式預測很快便趨向一致，預料銀杏將西移並掠過呂宋北部，其後進入南海。受惠於溫暖的海水及較弱垂直風切變，銀杏快速增強，4 日晚上已達強烈熱帶風暴強度。它於 5 日早上進一步增強為颱風，並於 6 日開始向西北偏西移動。

銀杏西轉後明顯減速。11 月 6 日近正午時份，銀杏的風眼於中心密集雲區中顯現，其核心結構於當天及 7 日繼續改善。銀杏於 7 日下午約 2 時達到巔峰強度，其估計風速如下：聯合颱風警報中心 - 125 節（每小時 232 公里），其後修訂為 130 節（每小時 241 公里）；中國中央氣象台 - 每秒 62 米（每小時 223 公里）；香港天文台 - 每小時 210 公里；日本氣象廳 - 95 節（每小時 176 公里）。風暴於呂宋北部登陸兩次：首次於下午約 3 時 40 分，登陸點為卡加延省聖安娜市；五個多小時後，風暴再度登陸同省桑切斯米拉市。第二次登陸時，銀杏移向稍為南偏並掠過呂宋西北角。風暴因此大幅減弱，其風眼亦從衛星圖上消失。

銀杏於 11 月 8 日凌晨進入南海。隨著銀杏以北的副熱帶高壓脊有所修復，風暴加速並繼續西移。在溫暖的南海中，銀杏的風眼重現，對流轉趨緊密。先前曾將銀杏降格為強颱風的香港天文台於 9 日上午 2 時將其重新升格為超強颱風。銀杏於當天向西北偏西移動並減速。

一股東北季候風當時正影響南海北部。11 月 10 日，垂直風切變上升及乾空氣逐漸侵蝕銀杏的結構，其風眼被填塞，深層對流於當天較後時間消散。已減弱的銀杏受低層流場影響，開始向西南移動。銀杏的最後一段海上路程期間有對流爆發，但風暴始終繼續減弱。它於 11 日減弱為熱帶風暴，並於 12 日減弱為熱帶低氣壓。12 日下午，銀杏登陸越南，並減弱為低壓區。

Weather in Hong Kong During Approach 風暴影響時香港天氣狀況

Link to relevant HKO weather report bulletins: 8/11 ● 9/11 ● 10/11
香港天文台相關天氣報告連結： 8/11 ● 9/11 ● 10/11

Long before YINXING entered the South China Sea, the HK Observatory mentioned on November 6 the possibility of stronger winds in coastal China due to the combined effect of the northeast monsoon and the storm, and that the #1 Standby Signal might be necessary on November 8 to 9. On November 7, the time of issuance of the #1 Signal was narrowed down to between noon and 3 pm November 8. The Signal was eventually issued at 12:40 pm, when YINXING was about 630 km southeast of Hong Kong. It was mainly fine that day, and winds in the territory were generally light to moderate.

As YINXING approached northern South China Sea and intensified, the Observatory suggested that the #3 Strong Wind Signal would be issued between 3 pm and 6 pm in the morning of November 9. It specifically mentioned that tropical cyclone signals would likely remain in force in the morning of November 10; this announcement led to the cancellation of the Cross Harbour Race, which was originally scheduled to take place that morning. The #3 Signal was issued at 3:40 pm November 9, and the Observatory mentioned that higher signals were rather unlikely.

East to northeasterly winds strengthened gradually in the night of November 9, reaching strong force in some offshore and elevated locations such as Cheung Chau Beach, Green Island, Ngong Ping, Tate's Cairn and Waglan Island. YINXING was closest to Hong Kong that night, passing at a distance of around 360 km to the south. At around 11 pm, YINXING's outer rainbands approached the territory. Local winds were generally strongest in the next few hours, with gales recorded at Green Island, Ngong Ping and Waglan Island, and the rain persisted overnight. As YINXING weakened and began to turn southwest, winds moderated near daybreak. The #3 Strong Wind Signal was replaced by the #1 Standby Signal at 10:20 am, and the #1 Signal was cancelled five hours later; YINXING was about 420 km south-southwest of Hong Kong at that time.

It remained mainly cloudy on November 10 with sunny intervals, and a rainfall of 10 to 20 mm was recorded in parts of the territory. The weather improved on November 11 and 12, but became unstable again on November 13 due to the approach of another cyclone TORAJI.

銀杏進入南海前一段時間，香港天文台於 11 月 6 日表示華南沿岸將受東北季候風及銀杏的共同影響，屆時風勢頗大，可能需於 8 或 9 日發出一號戒備信號。至 7 日，發出一號戒備信號的時間段收窄至 8 日正午至下午 3 時。該信號最終於下午 12 時 40 分發出，當時銀杏位於香港東南約 630 公里。當天大致天晴，本地風勢普遍只有輕微至和緩水平。

隨著銀杏靠近南海北部並增強，天文台表示將考慮於 11 月 9 日下午 3 至 6 時改發三號強風信號，並預料熱帶氣旋警告信號將於翌日早上維持。原定於 10 日早上舉行的維港渡海泳因而需要取消。三號信號於 9 日下午 3 時 40 分發出，天文台表示改發更高警告信號的機會甚低。

11 月 9 日晚間，本港東至東北風逐漸增強，部分離岸及高地地點如長洲泳灘、青洲、昂坪、大老山及橫瀾島吹強風。銀杏於當晚接近香港，於南面約 360 公里處掠過。下午約 11 時，銀杏的外圍雨帶靠近本港，而本地風勢普遍於其後數小時內最強，青洲、昂坪及橫瀾島吹烈風，雨勢於凌晨持續。銀杏其後減弱並轉向西南，本港風勢於接近破曉時分緩和。三號強風信號於上午 10 時 20 分被一號戒備信號取代，而一號信號亦於五小時後取消，銀杏當時於香港西南偏南約 420 公里。

11 月 10 日餘下時間大致多雲，短暫時間有陽光，部分地區當天雨量達 10 至 20 毫米。本港天氣於 11 及 12 日有所改善，但隨著另一氣旋桃芝靠近，13 日天氣再度轉趨不穩定。

Image Gallery 圖片庫

Figure 1 - Satellite image of YINXING at its formation
圖 1 - 銀杏形成時之衛星雲圖

Figure 2 - Numerical model forecasts at 8 am November 3
圖 2 - 11 月 3 日上午 8 時之數值模式預報

Figure 3 - Forecast tracks from various official agencies at 8 am November 4 (left) and November 9 (right)
圖 3 - 11 月 4 日（左）及 9 日（右）上午 8 時之官方機構預測路徑圖

Figure 4 - Steering flow chart at 8 am November 6
圖 4 - 11 月 6 日上午 8 時之駛流場分佈圖

Figure 5 - Satellite image of YINXING near its peak intensity when it made landfall at northern Luzon
圖 5 - 銀杏達到巔峰強度並於呂宋北部登陸時之衛星雲圖

Figure 6 - Wind field analysis at 10:27 am November 9
圖 6 - 11 月 9 日上午 10 時 27 分之風場掃描圖

Figure 7 - Radar image at midnight November 10
圖 7 - 11 月 10 日午夜之雷達圖

Figure 8 - Local weather element distribution map at 1:30 am November 10 (strong winds or above are represented by red wind barbs)
圖 8 - 11 月 10 日上午 1 時 30 分之本港天氣元素分布圖（強風或以上風速以紅色風矢標示）

Figure 9 - Satellite image of YINXING (in the South China Sea) and TORAJI (east of the Philippines) at 8 am November 10. YINXING weakened substantially that day and on the next day.
圖 9 - 11 月 10 日上午 8 時之衛星雲圖，可見銀杏（位於南海）及桃芝（位於菲律賓以東）兩個熱帶氣旋。銀杏當天及翌日大幅減弱。

Figure 10 - Wind speed time series at Cheung Chau Beach, Green Island, Ngong Ping and Waglan Island (top to bottom) between November 9 and 10
圖 10 - 長洲泳灘、青洲、昂坪及橫瀾島（上至下）於 11 月 9 至 10 日之風速時間序列圖

Figure 11 - Daily rainfall distribution map for November 10
圖 11 - 11 月 10 日之雨量分佈圖

Winds Recorded at Reference Stations 參考站所錄得的風速

The following table lists the maximum 10-minute average (sustained) wind speed recorded while tropical cyclone signals were in force. In some occasions, it is possible that the strongest winds were not recorded when the highest signal was in force.

下表列出各站於熱帶氣旋警告信號生效時所錄得的最高 10 分鐘平均（持續）風速，留意此風速不一定於最高信號生效期間錄得。

*The anemometer at Chek Lap Kok was relocated to the new North Runway (third runway) on March 25, 2024. [HKO announcement]
*赤鱲角的風速計自 2024 年 3 月 25 日起遷移至新北跑道（第三跑道）。[香港天文台相關公佈]

Charts and Figures 各項數據

Table 1: Track data from HKWW:
表一 : 香港天氣觀測站之路徑資料

Table 2: Maximum gust and hourly average wind speed recorded in Hong Kong from HKO:
表二 : 香港天文台公佈的各站最高每小時平均風力和陣風數據 (英文)

Table 3: Rainfall (in millimetres) contributed by YINXING from HKO (figures in brackets are based on incomplete hourly data):
表三 : 香港天文台公佈的各站雨量資料 (英文) (方括號內之數據由不完整之每小時資料擷取)

Last Accessed 最近訪問日期: Thu Jun 11 2026 11:37:10 HKT
Last Modified 最近修訂日期: Sat May 03 2025