[1] Tropical storms that formed in the entire west Pacific basin were assigned a name by the Joint Typhoon Warning Center.

As Susan moved away from the Philippines the storm strengthened into a typhoon shortly before cross in the southern tip of Taiwan and turning extratropical just after passing Okinawa.

Nevertheless, the system's cloud structure and outflow pattern slowly improved, and based on Dvorak estimates of T2.5/40 mph (65 km/h), the JTWC upgraded the disturbance into Tropical Storm Thad at 00:00 UTC on June 20,[4] with the JMA following suit six hours later.

[3] Additional strengthening did not occur, however, as the system developed a central cold over – a large irregular shaped area of deep convection.

By June 23, Thad reached the western periphery of a subtropical ridge, and began to recurve in response to a mid-latitude trough over eastern China.

Thunderstorm activity increased almost immediately thereafter, and the storm's outflow subsequently expanded, aided by a retreating Tropical Upper Tropospheric Trough (TUTT).

[4] Around this time, the JMA estimated that Vanessa reached its maximum intensity, with winds of 105 km/h (65 mph), making it a severe tropical storm.

Typhoon Warren moved westward and brushed the extreme northern tip of Luzon Island in the Philippines causing $10 million in damage.

[3] Initially resembling a monsoon depression, the storm's upper-level outflow and organization increased on June 28 in response to decreased winds aloft.

This created favorable conditions aloft for tropical cyclone formation, and an area of convection in the Philippine Sea began to rapidly develop.

[3] Shortly thereafter, both agencies indicated that Bill attained its peak velocity of 80 km/h (50 mph),[4] an intensity it would maintain until making landfall 220 km (135 mi) south of Shanghai.

[3] The typhoon then curved north as it rounded a subtropical ridge, although unlike most recurving tropical cyclones, a TUTT cell prevented.

[3] Although the typhoon passed close to Wake Island near peak intensity, wind gusts only reached 45 mph (70 km/h) and according to the JTWC, damage was insignificant.

Dvorak classifications prompted the JTWC to upgrade the system into a tropical storm at midday,[4] with the JMA following suit early on August 29.

A trough approaching from the west was forecast to prompt Uleki to turn east; however, the typhoon maintained a general northwest motion in a stair-stepped fashion.

Continued effects from shear stripped the cyclone of all deep convection and by September 14 only a band of cirrus clouds remained in association with Uleki.

Over the next two days, Hal slowly organized as it tracked westward,[4] with both the JTWC and JMA declaring the disturbance a tropical depression on September 8[4][3] well to the southeast of Japan.

[9] During its formative stages, Hal brought winds of up to 70 km/h (45 mph) to Guam, which caused minor property damage and scattered power outages.

However, further organization was slow to occur due to strong wind shear caused by Jeff's proximity to Typhoon Hal; all deep convection was restricted to the southern semicircle.

[4] An eastward extension of the monsoon trough resulted in an area of disturbed weather around 560 km (350 mi) east of Manila on September 18.

A combination of increased convection, enhanced outflow aloft, and a Dvorak estimate of T2.0/55 km/h (35 mph) resulted in the JTWc upgraded the disturbance into a tropical depression;[4] the JMA followed suit around this time.

[3] Tracking over the open waters of the South China Sea, an expansion of the storm's southwesterly outflow channel promoted further intensification.

[nb 2] In Fujian Province, heavy rain due to the remnants of Kit and Mamie resulted in nine lives lost, with an addition 51,000 losing their homes.

[4][3] The tropical storm headed west-northwest south of the subtropical ridge, and later that day, the JTWC and JMA reported that Lee attained its peak intensity of 105 and 80 km/h (65 and 50 mph).

[3] Not long after its peak, Nelson rounded the western edge of a subtropical ridge and slowly weakened as it accelerated northeast, passing about approximately 155 km (95 mi) southeast of Okinawa, where 212 mm (8.35 in) of rain fell.

[3] Made landfall in Vietnam and was not monitored by the JTWC, As the previous storm was weakening at high latitudes, a new area of convection formed around 850 km (530 mi) south-southeast of Minami-Tori-shima.

[4] On October 11, the JMA upgraded the depression into a tropical storm,[3] and twelve hours later, satellite intensity estimates prompted the JTWC to follow suit.

[4][3] Loss of organization followed a transition into an extratropical cyclone, and after the low-level circulation diverged from the deep convection, the JTWC issued the final warning on October 16.

[10] The JTWC estimated that Pat weakened into a tropical storm over the Gulf of Tonkin, and later that day, dissipated slightly onshore Vietnam.

Ruby, with its disrupted circulation, remained weak over the South China Sea, and land interaction with Vietnam caused it to dissipate on the 28th.