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TC Watch / 熱帶氣旋 > Selected TC Review / 重要熱帶氣旋回顧 > 202530W (FENGSHEN 風神) [Refresh 更新]

202530W (FENGSHEN 風神) - Profile 檔案

(First draft issued on November 16, 2025)
(初稿於 2025 年 11 月 16 日發出)

Brief profile of FENGSHEN | 風神小檔案:

^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
	2025/10/20 (MON) 17:20 HKT**	SSE 430 km	W/WNW at 18 km/h	90 km/h (50 knots, STS)
	2025/10/21 (TUE) 18:20 HKT***	SSW 570 km	WSW at 12 km/h	90 km/h (50 knots, STS)

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

**The #3 Strong Wind Signal was issued to replace the Strong Monsoon Signal.
**此三號強風信號取代強烈季候風信號。

***The Strong Monsoon Signal was issued at 18:21 HKT.
***強烈季候風信號於下午 6 時 21 分發出。

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:

TBA 稍後公佈

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）

Tropical disturbance 96W persisted in the northwest Pacific in mid-October. On October 17, 96W's convections expanded and the system's spiraling characteristics became apparent. The JMA issued a gale warning at 2 am, while the JTWC issued a tropical cyclone formation alert at 8 am. At the same time, both the NMC and HKO upgraded 96W into a tropical depression. 96W was moving west to west-southwest along the southern periphery of a subtropical ridge anchored in the seas south of Japan and extending westwards all the way into southern China.

96W's convections remained rather disorganized in the rest of October 17. Convective bursts could be seen near 96W's centre early on October 18; the JMA upgraded it into a tropical storm at 2 am and named it FENGSHEN. Six hours later, the JTWC upgraded FENGSHEN into tropical depression 30W. FENGSHEN continued to move west and made landfall in the province of Sorsogon in central Philippines near 4 pm. Its convections expanded further as the storm travelled across the Philippines, and it started to move west-northwest.

FENGSHEN spent the first half of October 19 crossing central Philippines. However, it travelled west-northwest as opposed to northwest predicted by most agencies. It approached the vicinity of Manila in the morning and entered the South China Sea west of Luzon in the afternoon. There was no significant change in FENGSHEN's intensity while it crossed the Philippines, and it turned northwest that night.

While in the South China Sea, FENGSHEN benefited from good poleward outflow channels, and convections in its northern semicircle expanded. The NMC and HKO upgraded FENGSHEN into a severe tropical storm at 2 pm October 20. At the same time, FENGSHEN began to move west. On October 21, the western ridge started to exert a larger influence on FENGSHEN and the storm started to lose latitude. That afternoon, an area of deep convections resembling a central cold cover developed in FENGSHEN's northern side. As the storm was then affected by around 15 to 20 knots (28 to 37 km/h) of southerly shear, it appeared asymmetric with little deep convections in its southern semicircle. Its convections continued to strengthen that night; the NMC upgraded FENGSHEN into a typhoon at 11 pm, while other agencies kept their estimated intensities at or below severe tropical storm strength.

The final burst of significant convective activities occurred in the morning of October 22. Due to the persistent intrusion of the dry northeast monsoon, FENGSHEN's deep convections began to dissipate that afternoon. The storm turned southwest as it moved along the southeastern periphery of the continental ridge in Indochina. It weakened into a tropical storm that night, and further into a tropical depression in the small hours of October 23. By daybreak, visible imageries depicted an exposed low-level circulation centre, which made landfall over central Vietnam in the afternoon. FENGSHEN weakened into an area of low pressure that night.

熱帶擾動 96W 於 10 月中旬在西北太平洋集結。17 日，96W 的對流有所擴展，該系統的螺旋性漸趨明顯。日本氣象廳於上午 2 時發出烈風警告，而聯合颱風警報中心則於上午 8 時發出熱帶氣旋形成警報。與此同時，中國中央氣象台及香港天文台均將其升格為熱帶低氣壓。當時副熱帶高壓脊盤踞於日本以南海域並西伸至華南，96W 沿該脊南部向西至西南偏西移動。

96W 的對流於 10 月 17 日餘下時間仍然較為鬆散。18 日早段，96W 近中心有對流爆發，日本氣象廳於上午 2 時將其升格為熱帶風暴，命名為風神。6 小時後，聯合颱風警報中心將風神升格為熱帶低氣壓 30W。風神繼續向西移動，並於下午約 4 時登陸菲律賓中部的索索貢省。風神的對流於風暴橫過菲律賓時進一步擴展，並開始向西北偏西移動。

風神於 10 月 19 日前半段橫過菲律賓中部。各機構普遍預測風暴向西北移動，但實際上它移向西北偏西。它於早上靠近馬尼拉一帶，並於下午進入呂宋以西的南海。風暴橫過菲律賓時強度並無明顯變化，它於晚間轉向西北移動。

進入南海後，風神受惠於良好極向輻散通道，其北半圓的對流擴展。中央氣象台及香港天文台於 10 月 20 日下午 2 時將其升格為強烈熱帶風暴。同時，風神開始向偏西移動。21 日，西面的脊場開始影響風神的路徑，令其緯度稍為下降。當天下午，風神北面發展出一團類似中心冷雲蓋的深層對流。由於當時風暴正受約 15 至 20 節（每小時 28 至 37 公里）的偏南垂直風切變影響，它的結構顯得不對稱，南半圓深層對流較少。當晚風暴對流繼續增強，中央氣象台於下午 11 時將其升格為颱風，而其他機構則維持強烈熱帶風暴或以下的強度估計。

10 月 22 日早上，風神最後一次出現明顯對流爆發。由於東北季候風持續引進乾燥氣團，風神的深層對流於當日下午開始消散。風暴沿位於中南半島的大陸高壓脊之東南部轉向西南移動，於當晚減弱為熱帶風暴，並於 23 日凌晨進一步減弱為熱帶低氣壓。當天破曉時份，可見光衛星雲圖見到風神已經外露的低層環流中心，它於下午登陸越南中部。風神於當晚減弱為低壓區。

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

Link to relevant HKO weather report bulletins: 20/10 ● 21/10
香港天文台相關天氣報告連結： 20/10 ● 21/10

FENGSHEN's passage in the South China Sea coincided with the arrival of a strong surge of northeast monsoon in southern China. On October 15, the HK Observatory mentioned the possible development of a tropical cyclone later that week, and that it might enter the South China Sea. Under the combined influence of the monsoon and this cyclone, winds in Hong Kong would strengthen and the weather might become unstable in the following week. The water level during high tide was expected to be above normal, and that flooding could occur in low-lying areas. On October 17, it was further suggested that the Strong Monsoon Signal might first be issued when the monsoon arrived, and that the #3 Strong Wind Signal might be issued directly (replacing the Strong Monsoon Signal) if the tropical cyclone's circulation affected coastal Guangdong later.

On October 19, the Observatory mentioned concretely that the Strong Monsoon Signal would be issued later that day, and that it would consider changing it to the #3 Signal in the evening of October 20. The Strong Monsoon Signal was eventually issued at 10:50 pm, just as FENGSHEN came to within 800 km of Hong Kong. However, winds were relatively light in the territory when this signal was issued; strong winds were only sporadically recorded at Tate's Cairn and Waglan Island.

It was mainly cloudy on October 20 with sunny intervals. Northerly winds strengthened slightly in offshore waters and on high ground during the day. At 8:40 am, the Observatory issued a "special advisory on the possible direct issuance of the Strong Wind Signal #3" for the first time, suggesting that this signal would be issued between 5 pm and 7 pm to replace the Strong Monsoon Signal. It was believed that this advisory served to minimize the potential confusion of the implications (such as the suspension of classes at kindergartens) of such direct issuance of the #3 Signal. At noon, the Observatory confirmed that the #3 Signal would be issued at 5:20 pm.

Due to the northeast monsoon, the daytime temperatures on October 20 over various parts of the territory were generally between 29 and 30 degrees, 3 to 4 degrees lower than the day before. FENGSHEN was situated about 430 km south-southeast of Hong Kong when the #3 Signal was issued, and the Observatory mentioned that the #3 Signal would remain in force at least until 6 pm the next day. In the night of October 20, the water levels at various tide gauges were about 0.6 m above normal, reaching about 2.78 m at Quarry Bay and 2.87 m at Tai Po Kau. FENGSHEN made its closest point of approach to Hong Kong near 11 pm, when it passed at a distance of 420 km to the south.

As FENGSHEN moved to the southwestern quadrant of Hong Kong on October 21, its outermost rainband began to affect the territory in the afternoon. Nevertheless, the rain was rather light. Due to the rain and the somewhat strong northerly winds, local temperatures dropped gradually in the afternoon, to about 21 degrees at the Observatory and 20 degrees in most places near sunset.

FENGSHEN was about 570 km south-southwest of Hong Kong when the #3 Strong Wind Signal was cancelled at 6:20 pm October 21. The Strong Monsoon Signal was issued again one minute later. Winds in Hong Kong were relatively stable during the whole day, irrespective of whether the #3 Signal or the Strong Monsoon Signal was in force. The gale force wind prediction (in offshore and elevated areas) earlier did not materialize; the strongest winds were observed at Tate's Cairn, but the wind speed was 1 km/h less than the gale force threshold at its peak. The water levels in the night of October 21 were a bit higher than those observed the day before; the measurements at Quarry Bay and Tai Po Kau were about 2.84 m and 2.94 m, respectively.

Winds remained rather strong on October 22 with light rain patches; most of the territory received less than 10 mm of rain that day. Temperatures at the Hong Kong Observatory lingered around 18 and 19 degrees in the afternoon. As the northeast monsoon moderated, local temperatures rose gradually on October 23. The Strong Monsoon Signal was finally cancelled at 7:45 am on October 24.

風神橫過南海時，剛好一股強烈的東北季候風抵達華南。10 月 15 日，香港天文台表示當週後期可能有熱帶氣旋發展，該氣旋可能進入南海。受季候風及該氣旋的共同影響，香港風勢將會增強，下週天氣或轉不穩定；漲潮時預料水位會較正常偏高，低窪地區可能出現水浸。17 日，天文台進一步提到季候風到來時可能先發出強烈季候風信號，而如熱帶氣旋的環流影響廣東沿岸，稍後有機會直接發出三號強風信號，取代強烈季候風信號。

10 月 19 日，天文台確認將於當日稍後發出強烈季候風信號，並考慮於 20 日黃昏前後改發三號強風信號。強烈季候風信號於下午 10 時 50 分、風神剛進入本港 800 公里範圍時發出。但是，該信號發出時本港風勢普遍較弱，只有大老山及橫瀾島間中錄得強風。

10 月 20 日本港大致多雲，日間短暫時間有陽光，當日離岸及高地北風稍為增強。上午 8 時 40 分，天文台首度發出「可能直接發出三號強風信號之特別提示」，表示將於下午 5 至 7 時發出三號強風信號來取代強烈季候風信號。相信此提示的作用是減低直接發出三號信號時可能造成的混亂（如幼稚園停課安排）。正午時份，天文台表示會於下午 5 時 20 分發出三號信號。

受東北季候風影響，10 月 20 日本港多區日間氣溫只有 29 至 30 度，較前一天低 3 至 4 度。三號信號發出時，風神位於香港西南偏南約 430 公里，而天文台表示該信號將至少維持至翌日下午 6 時。20 日晚間，多個潮汐站錄得較正常高約 0.6 米的水位，鰂魚涌及大埔滘的海水高度分別約為 2.78 及 2.87 米。風神於下午 11 時左右最接近香港，於南方約 420 公里處掠過。

隨著風神於 10 月 21 日移至香港的西南象限，其最外圍的雨帶於下午開始影響本港，但雨勢頗弱。由於降雨加上北風稍強，下午本港氣溫逐步下降，日落時份天文台跌至約 21 度，其他大多數地區氣溫於 20 度左右。

三號強風信號於 10 月 21 日下午 6 時 20 分取消，當時風神位於香港西南偏南約 570 公里，而強烈季候風信號於一分鐘後再次發出。不論是三號信號或強烈季候風信號生效時，本港整日的風勢大致穩定。天文台先前的離岸及高地烈風預測並未實現；大老山的風勢最強，但風速仍然較烈風下限低每小時 1 公里。21 日晚間水位較之前一天高，鰂魚涌及大埔滘分別錄得約 2.84 及 2.94 米。

10 月 22 日風勢仍然頗強並有微雨，大多數地區當日雨量少於 10 毫米，下午天文台氣溫徘徊於 18 至 19 度。隨著東北季候風緩和，23 日本港氣溫逐漸回升，而強烈季候風信號最終於 24 日上午 7 時 45 分取消。

Image Gallery 圖片庫

Figure 1 - AI model forecasts (top-left: FNV3; top-right: AIFS) and ECMWF model forecast (bottom) on October 14
圖 1 - 10 月 14 日人工智能模式（左上：FNV3；右上：AIFS）及 ECMWF 模式（下）預測

Figure 2 - Forecast tracks from various official agencies on October 18 (left) and 20 (right)
圖 2 - 10 月 18 日（左）及 20 日（右）之官方機構預測路徑圖

Figure 3 - JTWC's initial track forecast depicting a gale force wind radius of 490 NM (907 km) in FENGSHEN's northeastern quadrant on October 23
圖 3 - 聯合颱風警報中心之初始預報顯示風神於 10 月 23 日的東北象限烈風圈半徑可達 490 海浬（907 公里）

Figure 4 - Satellite image of FENGSHEN as it crossed central Philippines
圖 4 - 風神橫過菲律賓中部時之衛星雲圖

Figure 5 - 9-day weather forecast issued by the HKO on October 19
圖 5 - 10 月 19 日香港天文台發出之九天天氣預報（英文版）

Figure 6 - Steering flow chart at 8 am October 20
圖 6 - 10 月 20 日上午 8 時之駛流場分佈圖

Figure 7 - 500 hPa weather map at 8 am October 21
圖 7 - 10 月 21 日上午 8 時之 500 百帕天氣圖

Figure 8 - Time series chart of Δp(972) (pressure difference between Chenzhou and Hong Kong) and Δp(S) (pressure difference between Shanghai and Hong Kong) near FENGSHEN's approach
圖 8 - 風神靠近香港前後之 Δp(972)（郴州與香港之氣壓差）及 Δp(S)（上海與香港之氣壓差）時間序列圖

Figure 9 - Wind field analysis maps at 9:03 am October 20 (left) and 10:19 pm October 21 (right)
圖 9 - 10 月 20 日上午 9 時 03 分（左）及 21 日下午 10 時 19 分（右）之風場分析圖

Figure 10 - Radar image at 2 pm October 21
圖 10 - 10 月 21 日下午 2 時之雷達圖

Figure 11 - Satellite image at 6 pm October 21 showing intense convective bursts in FENGSHEN's northwestern quadrant
圖 11 - 10 月 21 日下午 6 時之衛星雲圖顯示風神西北部有猛烈對流爆發

Figure 12 - Wind speed time series at Cheung Chau, Green Island, Lau Fau Shan, Tate's Cairn and Waglan Island (top to bottom) between October 20 and 22
圖 12 - 長洲、青洲、流浮山、大老山及橫瀾島（上至下）於 10 月 20 至 22 日之風速時間序列圖

Figure 13 - Observed and predicted sea level at Quarry Bay, Tai O and Tai Po Kau (top to bottom) during FENGSHEN's approach
圖 13 - 風神靠近時鰂魚涌、大澳及大埔滘（上至下）之實測及預測水位圖

Figure 14 - Air temperature distribution (left) and its 24-hour change (right) in southern China at 8 am October 22
圖 14 - 10 月 22 日上午 8 時之華南氣溫分佈（左）及 24 小時氣溫變化（右）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。

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 FENGSHEN 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 12:37:56 HKT
Last Modified 最近修訂日期: Thu Dec 04 2025