Three days later, Surigae's remnant explosively intensified into a bomb cyclone near the Aleutian Islands, attaining hurricane-force winds.
Afterward, the system gradually weakened as it turned eastward, crossing the International Date Line on April 30 and fully dissipating that same day.
[nb 2] Later, warnings were raised for parts of the Philippines as the typhoon moved closer to the nation, with evacuations taking place in eastern regions of the Visayas.
By April 10, the disturbance had acquired nascent rainbands within an environment exhibiting low wind shear, warm sea surface temperatures (SSTs) between 28–29 °C (82–84 °F), and a well-established outflow, which was conducive for further tropical cyclogenesis.
[6] The Japan Meteorological Agency (JMA)[nb 3] assessed the formation of a tropical depression near 5°N 143°E / 5°N 143°E / 5; 143; at the time, the newly designated system was moving slowly west-northwest around the southern periphery of a subtropical ridge.
[12][13] Surigae was also upgraded to a tropical storm by the JTWC in the early hours of April 14, as the system progressed westward in the Philippine Sea.
[16][17] Surigae's convective activity was initially displaced to the west of its center of circulation, though additional rainbands and thunderstorm development later covered the central vortex.
[24] The system's eye became apparent through the central overcast, preceding a period of rapid intensification as Surigae progressed west-northwestward through a conducive environment.
[23] Surigae's central dense overcast became colder and better-organized, with a well-defined ring of very cold cloud tops encircling a 26 km (16 mi) diameter eye.
Concurrently, an approaching trough produced a gap in the subtropical ridge of high pressure to the north, causing Surigae to slowly curve northwest as it quickly strengthened.
[25] On April 17, the JMA determined via the Dvorak technique that Surigae's barometric pressure had rapidly fallen to 895 hPa (mbar; 26.43 inHg), as the storm reached its peak intensity.
[31] Later that day, Surigae began an eyewall replacement cycle causing its eye to become less apparent on satellite imagery and its winds to slightly diminish.
[31] By April 20, the prevalence of nearby dry air and upwelling of cold waters beneath the slow-moving typhoon caused its winds to decrease further.
Surigae turned northeast away from the Philippines later that day and weakened further, upon entering an environment with strong westerly winds in the upper troposphere.
[15] Surigae began to undergo extratropical transition, a process it completed late on April 24, at which time the JTWC issued their final advisory on the system.
[38] As an extratropical cyclone, Surigae underwent explosive cyclogenesis on April 26, with its central pressure falling 44 hPa (mbar; 1.3 inHg) within 24 hours, while rapidly tracking northeastward.
[39] While located to the east of Hokkaido, the system's ten-minute maximum sustained winds reached 130 km/h (80 mph) at 18:00 UTC that day,[40] and its central pressure bottomed out at 944 hPa (mbar; 27.88 inHg) six hours later.
[42] Starting on April 14, the National Weather Service office in Tiyan, Guam began issuing advisories across the Federated States of Micronesia and Palau, with tropical storm watches raised across Yap and Ngulu Atoll of Yap State;[43] both watches were upgraded to warnings the same day as Surigae neared Ngulu Atoll.
[51][55] At 15:00 UTC (23:00 PHT), the PAGASA began issuing Tropical Cyclone Wind Signal (TCWS) #1 for areas in Eastern Visayas and the Caraga Region, as well as for portions of Luzon six hours later.
Residents in those areas were advised to avoid reef lines in the north and west, and to take caution on beaches due to rip currents and large waves.
[76] On April 19, Surigae forced the cargo ship LCU Cebu Great Ocean, carrying twenty crew members and nickel ore, to run aground on the coast of the Province of Surigao del Norte, in the southern Philippines.
[79][80] Heavy rain from the outer bands of Surigae battered Eastern Visayas and the Bicol Region as it passed around 345 km (215 mi) to the east of Catanduanes.
[85][86] Six crew members of the LCU Cebu Great Ocean were found dead after the ship ran aground in the southern Philippines.
[89] Following the passage of Surigae, the Department of Social Welfare and Development (DSWD) and local government units provided assistance worth approximately ₱6.52 million (US$135,000) to those affected in Cagayan Valley, the Bicol Region and the Eastern Visayas.