Severe Tropical Storm Wutip was a strong tropical cyclone that impacted South China,Vietnam and the Philippines,in early June 2025. The first named storm of the annual typhoon season,Wutip's origins can be traced back to June 5,when the Joint Typhoon Warning Center (JTWC) identified an area of atmospheric convection to the west of Yap in the Caroline Islands. After crossing Luzon,the system developed into a tropical depression over the South China Sea on June 9 as it moved west-northwestwards along the southwestern periphery of a mid-level subtropical high. The Japan Meteorological Agency (JMA) named the system Wutip on June 11 after it intensified into a tropical storm,making it one of the five latest-named storms in the Western North Pacific basin. The following day,Wutip strengthened into a severe tropical storm and reached its peak on June 13,with ten-minute sustained winds of 110km/h (70mph) and a central pressure of 980hPa (28.94inHg). Wutip briefly passed over the far western part of Hainan Island,China and made its first landfall near Dongfang city on the same day,before reemerging over the Gulf of Tonkin shortly afterwards. The JTWC reported that on June 14,Wutip had intensified into a minimal typhoon before making its second landfall near Leizhou,Guangdong,China. After landfall,it weakened into a minimal tropical storm. Once inland,the system further weakened into a tropical depression and continued to be tracked until it dissipated on June 15.
In the Philippines,the precursor to Wutip,along with the southwest monsoon,brought widespread rainfall and floods to parts of Luzon,as well as Central and Eastern Visayas. In ĐàNẵng,Vietnam,the outer rainbands of the storm caused severe flooding on streets and in houses due to heavy rainfall,with some areas sustaining minimal damage. Power outages were also reported in parts of Vietnam. In the Chinese provinces of Hainan and Guangdong,Wutip brought strong winds with powerful gusts. The remnants of Wutip brought torrential rain in the Pearl River estuary. At least 17 people were reported dead and one was injured. Preliminary estimates from Aon Benfield are greater than US$100 million.[1]
Meteorological history
Map plotting the storm's track and intensity,according to the Saffir–Simpson scale
By June 11, the depression intensified into a tropical storm and was namedWutip by the JMA.[10] This was the fifth-latest first appearance of a named storm in a season in the Western North Pacific basin—after Nichole in 1998 (July 9), Nepartak in 2016 (July 3), Wilma in 1973 (July 1), and Sarah in 1983 (June 25).[11] However, the JTWC did not follow suit, as satellite imagery showed a small, fully exposed low-level circulation centre, with convection beginning to develop once more near the centre.[12] Later, it was under a favourable environment influenced by sea surface temperature,[13] and despite its limited structure, low-level cloud bands were visible surrounding the circulation.[14] The JTWC followed suit at 21:00 UTC that day after deep convection developed over the low-level circulation centre,[15] and by June 12, satellite imagery revealed well-defined convective banding tightly wrapping around an obscured low-level centre.[16]
At 18:00 UTC that day, the JMA upgraded the system to a severe tropical storm as its persistent convection aligned more closely with the circulation centre and the cloud tops warmed to −82°C (−116°F),[17] with Wutip continuing to move westwards along the southwestern periphery of a mid-level subtropical high.[18] On the following day, Wutip continued to exhibit persistent convection, with spiral bands becoming more organised around the obscured circulation centre.[19] The JMA reported that Wutip reached its peak intensity at 03:00 UTC that day, with ten-minute sustained winds of 110km/h (70mph) and a central pressure of 980hPa (28.94inHg).[20]
A microwave image revealed the presence of an eye feature, with convective bands wrapping around the storm's southern semicircle, as it remained nearly stationary to the west of Hainan, China, in the Gulf of Tonkin.[21] As Wutip approached the subtropical ridge axis,[22] it curved northeastwards and began to accelerate.[22][23] It briefly passed over the far western part of Hainan Island and made its first landfall near Dongfang city around 23:00 CST (15:00 UTC) on June 13,[22] before reemerging over the Gulf of Tonkin shortly afterwards.[24] On June 14, the JTWC reported that Wutip had rapidly intensified into a minimal typhoon, with one-minute sustained winds of 120km/h (75mph), as satellite imagery revealed a 27.8-kilometre-wide (17.3mi; 15nmi) small eye surrounded by shallow to moderate convective activity, although deep convection had largely collapsed.[25] On the same day, Wutip made its second landfall near Leizhou city in Guangdong province at around 12:30 CST (04:30 UTC).[26] After landfall, the storm weakened into a minimal tropical storm as satellite imagery showed that the eye feature had filled in, prompting the JTWC to discontinue warnings at 09:00 UTC that day.[27] Once inland, the JMA downgraded Wutip to a tropical depression on the same day and continued tracking the system until it dissipated at 12:00 UTC on June 15.[28][29]
Preparations
Philippines
On June 7, PAGASA issued flood warnings for a weather disturbance that was a precursor to Wutip, cautioning the public about possible landslides and flash floods. By June 10, PAGASA urged affected areas to stay alert for potential flooding.[30][31]
On June 11, the National Emergency Broadcast [cn] of China urged residents in coastal regions to closely monitor weather updates.[33] The Hainan Provincial Disaster Prevention, Mitigation and Relief Committee of China launched a level IV response to Wutip.[34] The Ministry of Natural Resources of China said that Wutip would generate 3–5 metres (9.8–16.4 feet) of waves in Hainan.[35]
The Hainan Provincial Meteorological Bureau declared a yellow alert (Level Three).[36]Wanning,[37]Baisha county,[38] and Haikou on the island province declared a blue alert (Level Four).[39] Fishing boats in Guangdong province, China retreated.[40] 139 flights were cancelled at the Haikou Meilan International Airport, and all ferry services across the Qiongzhou Strait were suspended since June 12. 1,200 trucks were stranded near ports. A concert by Cantopop singer Eason Chan at Wuyuan River Stadium in Haikou was cancelled.[41] Sixteen cities and counties in the province suspended classes.[41] 16,651 people from Hainan in high-risk regions were evacuated.[42] Some tourist attractions were temporarily closed.[43]
Macau and Hong Kong
The Macau Meteorological and Geophysical Bureau (SMG) enforced a signal n.° 1 alert [yue; tw] on June 11 at 06:00 MST (June 10 at 22:00 UTC).[44][45] The n.° 3 signal was hoisted by the SMG during the day between 06:00 MST[46][47] and 18:00 MST on June 12.[48][49] Primary school classes were suspended for the day.[50] The n.° 3 signal was once again hoisted at 08:00 local time on June 14.[51] All tropical cyclone signals were lowered on June 15 at 15:30 local time.[52]
In neighbouring Hong Kong, at 16:40 UTC on June 10 (00:40 HKT on June 11), the Hong Kong Observatory issued the number one standby signal as Wutip was upgraded to tropical depression within 800 kilometres (500 miles; 430 nautical miles) of the territory.[53][54] The Observatory issued the number three signal at 12:20 local time on June 14,[55][56] which was cancelled at 15:40 on the following day and replaced by the strong monsoon signal[57][58][59] in place until 21:00.[60]
Indochinese peninsula
The Ministry of Water Resources and Meteorology of Cambodia reported that light rains are expected in the country,[61] while the Department of Meteorology and Hydrology of Laos stated that Wutip would bring moderate rains and may trigger landslides in Laos.[61] The Thai Meteorological Department noted that Wutip would intensify the monsoon in the area,[61] and the National Centre for Hydro-Meteorological Forecasting (NCHMF) of Vietnam warned that the storm would bring strong winds and high waves to the northwestern East Sea and the Paracel Islands.[61] According to the NCHMF, the country would experience heavy rains because of the storm.[62][63] 18,570 employees from 6,331 fishing vessels in Vietnam were informed about Wutip.[64] Localities were told to prepare their people and government for the storm.[65] The Search and Rescue and Civil Defence of the Kon Tum province told local units to closely follow the situation of Wutip.[66]
Wutip brought heavy rains and floods in Huế, causing authorities to encourage residents to take precautions.[73] In Đà Nẵng, the storm's outer bands severely flooded areas of streets and houses from heavy rainfall, causing minor damage.[74] Wave heights reaching 3–5m (9.8–16.4ft) impacted the coast of Vietnam, putting vessels at risk. On June 11, the Quảng Nam Border Guard Command rescued two crew members stuck on-board a fishing vessel amid rough seas.[75] Multiple landslides were reported, some of which blocked the La Sơn–Túy Loan Expressway[vi], the Hồ Chí Minh Highway, and National Route 49[vi].[76] Flooding in the Hương River surpassed alert level 2. The Bồ River[vi; ceb] neared alert level 3. Floodwaters in the Quảng Trị province neared alert level 2. Most of the low-level bridges in the Hoằng Hóa and the Đa Krông districts were flooded.[77] Eleven people were reported dead.[78] Two of the deaths were located at Quảng Trị during flood prevention efforts, while one drowned at Hải Lăng district.[79]
Slight rains were recorded in the Central Highlands of Vietnam, with some low-lying roads in Phú Xuân district flooding.[80] In Mít Cát village, Kim Thủy commune, Lệ Thủy district, 52 people from 10 households were relocated because of heavy floods.[81] More than 3,500 homes were flooded across Vietnam,[78] including 2,770 in Quảng Trị, 725 in Quảng Nam and 80 in Da Nang.[82] Ten landslides blocked a road in Bảo Yên district.[83] Widespread power outages were also reported.[84] A fishing boat sank, and flights at Đà Nẵng airport were disrupted.[85] At least 18,337 hectares (45,310 acres) of rice fields and nearly 1,000ha (2,500 acres) of land were inundated. Floods in some rivers reached a 30-year high.[76]
China
In the island-province of Hainan, Wutip brought heavy winds with gusts of 191–217km/h (119–135mph; 103–117kn).[86] At least 5,192 people were relocated from houses deemed at-risk, 9,789 others had been relocated from construction sites and 1,580 were relocated from low-lying and flood-prone areas. Waves up to 3.4–4.6m (11–15ft) high were reported in some coastal areas, slightly damaging business boats.[87] Twelve sailors were rescued following a distress call when their cargo vessel encountered waves of up to 3.0m (10ft).[88] At least 698 trees fell in Sanya, and 1,200 trucks were stranded near ports.[89] Wutip's second landfall brought heavy winds and rainfall, affecting Zhanjiang, Suixi and Leizhou in Guangdong province with wind speeds of 37–46km/h (23–29mph; 20–25kn).[90] A landslide triggered by heavy rain brought by the storm left three people dead in Luchuan county, Guangxi province.[91] Vast areas of Huaiji county in Guangdong was flooded. 70,000 people were evacuated.[92] Authorities in Zhejiang province issued an emergency response notice for flooding risks.[93] Parts of the Rongjiang County urban area became flooded. In Sandu County, a bridge on the Xiarong Expressway was swept away by a landslide.[94]Total direct economic losses in China were 1.81 billion yuan (US$253 million).[95]
Macau and Hong Kong
The remnants of Wutip brought torrential rain to the Pearl River estuary on June 17. Rainstorm signals were issued in the early morning on that day, with the amber signal and the red signal issued in Macau at 06:20 and 06:35 MST respectively. Primary school classes were again suspended for the day; whereas secondary school classes were suspended for the morning in Macau.[96][97][98] In Hong Kong the thunderstorm warning and the amber rainstorm signal were issued at 02:30 and 07:30 HKT respectively.[99][100][101][102]
↑ The Joint Typhoon Warning Center is a joint United States Navy– United States Air Force task force that issues tropical cyclone warnings for the western Pacific Ocean and other regions.[2]
↑ Warning and Summary 050600 (Report). Tokyo, Japan: Japan Meteorological Agency. June 5, 2025. Archived from the original on June 5, 2025. Retrieved June 5, 2025.
↑ Warning and Summary 091200 (Report). Tokyo, Japan: Japan Meteorological Agency. June 9, 2025. Archived from the original on June 9, 2025. Retrieved June 9, 2025.
↑ RSMC Tropical Cyclone Advisory (Report). Tokyo, Japan: Japan Meteorological Agency. June 10, 2025. Archived from the original on June 10, 2025. Retrieved June 10, 2025.{{cite report}}: CS1 maint: bot: original URL status unknown (link)
↑ Warning and Summary 051200 (Report). Tokyo, Japan: Japan Meteorological Agency. June 15, 2025. Archived from the original on June 15, 2025. Retrieved June 15, 2025.
↑ "2025年第1号台风"蝴蝶"要来了，将在海南岛南部到广东西部沿海一带登陆"[Typhoon No. 1 "Butterfly" in 2025 is coming, and it will make landfall along the coast from the southern part of Hainan Island to the western part of Guangdong]. The Cover. June 10, 2025. Archived from the original on June 10, 2025. Retrieved June 11, 2025.
↑ "1号台风生成 南海将出现3到5米的大浪到巨浪"[Typhoon No. 1 will generate 3 to 5 metres of high to high waves in the South China Sea]. c.m.163. June 11, 2025. Retrieved June 11, 2025.
↑ "海南省气象局发布台风黄色预警[III级/较重]"[Hainan Provincial Meteorological Bureau issued a yellow warning for typhoon [Level III/heavier]]. China Meteorological Administration. June 11, 2025. Retrieved June 11, 2025.
↑ "万宁市气象台发布台风蓝色预警[Ⅳ级/一般]"[Wanning Meteorological Bureau Issued Typhoon Blue Warning [Level IV/General]]. China Meteorological Administration. June 11, 2025. Archived from the original on June 11, 2025. Retrieved June 11, 2025.
↑ "白沙县气象台发布台风蓝色预警[Ⅳ级/一般]"[Baisha County Meteorological Bureau issued a blue warning for typhoons [Level IV./General]]. China Meteorological Administration. June 11, 2025. Archived from the original on June 11, 2025. Retrieved June 11, 2025.
↑ "海口市气象台发布台风蓝色预警[Ⅳ级/一般]"[Haikou Meteorological Bureau issues a blue warning for typhoons [Level IV./General]]. China Meteorological Administration. June 11, 2025. Archived from the original on June 11, 2025. Retrieved June 11, 2025.
↑ "1号台风即将生成 广东要求海域内作业渔船回撤"[Guangdong requires fishing boats operating in the sea area to retreat]. news.cnr.cn. June 11, 2025. Retrieved June 11, 2025.
↑ "1号台风转强朝中国海南岛方向移动1"[Typhoon No. 1 strengthens and moves towards China's Hainan Island]. cn.sggp.org.vn. June 13, 2025. Archived from the original on June 16, 2025. Retrieved June 13, 2025.
↑ "受台风"蝴蝶"影响 海南已转移数万人"[Tens of thousands of people have been relocated in Hainan due to the impact of Typhoon "Butterfly]. Xinhua News Agency. June 13, 2025. Retrieved June 13, 2025.
↑ "受台风"蝴蝶"影响 广西陆川发生山体滑坡致三人遇难"[Affected by Typhoon Butterfly, a landslide occurred in Luchuan, Guangxi, killing three people]. Lianhe Zaobao (in Simplified Chinese). Retrieved June 15, 2025.
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