A tropical cyclone has been confirmed to have existed for several days in the vicinity of the Micronesian Islands, though its exact intensity is unknown.
A tropical storm was tracked for several days during mid April, attaining an intensity of 60 mph, and an estimated pressure of 995 mbar. It's exact track is unknown.
A tropical storm was tracked for several days as it moved through the Micronesian Islands, with reliable reports suggesting a peak of 65 mph, and an estimated pressure of 994 mbar.
A tropical cyclone was tracked from the Micronesian Islands until it recurved and hit Japan several days later. Ship reports reported an intensity of 80 mph, and a pressure of 980 mbar, which may suggest this system could have been slightly stronger.
Unknown Storm 05W[]
Unknown strength tropical cyclone
Duration
June 14 – June 19
Peak intensity
Winds unknown
A tropical cyclone has been confirmed as existing near the Micronesian islands for several days, but any details on its intensity are unknown.
A tropical storm was tracked for several days in the South China Sea, eventually making landfall in China on July 8 before dissipating.
Unknown Storm 09W[]
Unknown strength tropical cyclone
Duration
July 8 – July 16
Peak intensity
Winds unknown
A tropical cyclone is confirmed to have existed from July 8 to July 16. The system developed in the central western Pacific, before moving to the east and then north, before turning back to the west and following an erratic track until it was last noted moving south off the eastern Philippines coast. The intensity of this system is unknown.
A tropical cyclone was tracked for several days as it moved from near the coast of Palau until it made landfall in Japan several days later. The intensity of the system is based off ship reports, and so may have been stronger.
A tropical cyclone was confirmed, but remained unknown until tracked for several days by a ship, which recorded a peak of 45 mph, and a pressure of 995 mbar.
Unknown Storm 12W[]
Unknown strength tropical cyclone
Duration
July 26 – August 7
Peak intensity
Winds unknown
A long lived system, likely a tropical cyclone, was confirmed to have lasted several days, but any intensities, and its track, remain unknown.
A tropical cyclone was tracked for several days, making landfall in the Ryukyu Islands, and in South Korea, before finally dissipating as it moved into North Korea. on August 7.
A tropical cyclone has been confirmed to have existed, with its intensity being estimated from ship reports. The track the system took, however, is unknown.
A tropical cyclone was tracked for several days out in the open west Pacific well away from land, reaching an estimated peak intensity of 60 mph, and a pressure of 992 mbar taken from ship reports.
A tropical storm was tracked for several days out in the open Pacific, before dissipating several days later. The peak intensity estimate was based off ship reports in the area.
A tropical cyclone developed on August 17, and after following an erratic track its entire life, made landfall on Japan, before moving out into the Sea of Japan and dissipating (or turning extratropical, its unknown) after hitting Japan again on August 30. The intensity is an estimate of wind reports, and the cyclone was likely stronger than reliable data in the storm's best track can say.
Unknown Storm 18W[]
Unknown strength tropical cyclone
Duration
August 20 – August 25
Peak intensity
Winds unknown
A system, likely a tropical cyclone, developed to the south of Japan, before moving in an erratic fashion, and dissipating over the Sea of Japan several days later.
A tropical cyclone formed to the south of Japan, before following a complicated track towards the coast. the system dissipated several days later over the Sea of Japan The peak intensity is estimated form both ship reports and information from land based stations.
A typhoon was known to have existed briefly before striking mainland China during mid to late August. Intensities are based off ship reports and land observations.
An intense typhoon was tracked for several days, before making landfall in Taiwan and China.the system dissipated on September 4. Intensities in the best track are based on ship reports and land observations.
