Forrest became the fastest-developing tropical cyclone on record for the western Pacific Ocean, with a pressure drop of 92 hectopascals (2.7 inHg) in a 24‑hour period.

The Japan Meteorological Agency (JMA)[nb 1] will name a tropical cyclone if it has 10-minute sustained wind speeds of at least 65 km/h (40 mph) anywhere in the basin.

Abby was a long-lived system, forming near Guam and remaining an intense typhoon for a number of days before recurving into Japan as a weakening tropical storm on August 17.

[4] Ellen was a strong typhoon which tracked from the International Dateline westward near the northern Philippines and mainland China by September 9.

[5] Forrest formed well east of the Philippines in late September, becoming the fastest-developing tropical cyclone on record for the western Pacific Ocean, with a pressure drop of 92 hectopascals (2.7 inHg) in a 24‑hour period.

Orchid was a long-lived and erratic tropical cyclone which moved slowly just east of the Philippines during late November, absorbing Percy along the way.

[1][4] When Tropical Storm Sarah formed in the South China Sea on June 24, it became the latest start of a western Pacific season since 1973.

[1] First noted southeast of Guam on July 31, this system slowly matured into the season's second super typhoon as it moved west-northwest over the following nine days.

It developed into a tropical storm that night and moved northwest due to Abby's influence on the steering across the western Pacific at that time.

Persisitently sheared by strong northeasterly flow aloft initially, once Dom recurved its convection was left completely behind, weakening the system to a tropical depression on August 21.

Thunderstorms were located about 300 miles (480 km) south of the center, but since the central pressure was under 1000 mb, it was considered a tropical depression while an exposed low level swirl.

The system did develop some central convection, and moved northward into South Korea, bringing showers to the region, and dissipated late on August 27.

A strong high pressure ridge offshore Japan led to no further development over the next 5 days, and the cyclone began to track south of west.

Approaching Luzon late on September 5, Ellen intensified rapidly into a strong typhoon before the terrain began to weaken the cyclone.

Kadena Air Force base reported winds gusting to 74 knots (137 km/h) and rainfall totaling 300 millimetres (12 in) during Forrest's passage.

A tropical depression formed in the South China Sea near Xisha Dao on October 2, and moved northwest, dissipating near Hanoi a couple days later.

Remaining poorly organized in the Philippine Sea due to northerly vertical wind shear, the tropical depression crossed central Luzon.

Soon after becoming a typhoon, Joe moved into southern China about 190 kilometres (120 mi) west of Hong Kong and quickly dissipated inland.

It weakened over land, but retained its circulation, and redeveloped into a tropical depression on October 19 in the northeastern Bay of Bengal in the North Indian Ocean.

[1] The cyclone made landfall near Đồng Hới, Vietnam on October 26 as a moderate tropical storm, and then rapidly weakened after moving inland.

A midget tropical storm, Norris quickly evolved on November 8 and recurved ahead of the frontal boundary well east of Asia, primarily threatening shipping in the western Pacific.

A total of 167 fatalities occurred[29] when the Philippine vessel MV Dona Cassandra capsized due to high waves off the coast of Mindanao.

Rapid development occurred on the morning of November 19 while in the South China Sea, and the system meandered due to the weakness in steering created by Orchid to its northeast.

The cyclone nearly became a typhoon later that day before vertical wind shear returned, introduced by a fresh cold outbreak from Asia.

By December 1, the system appeared to be forming into a tropical cyclone but its thunderstorm activity shifted over 900 kilometres (560 mi) to the northwest of the center.

Over the next couple days, an upper cyclone to its north shifted westward, which helped lead to increased outflow and a low-level circulation.

Intense vertical wind shear struck the cyclone as it moved northeast at a clip up to 27 knots (50 km/h), and the system rapidly weakened.

Potential impacts include heavy rainfall, strong winds, and rough seas, varying significantly depending on the storm's characteristics and the terrain it encounters.

This table will list all the storms that developed in the northwestern Pacific Ocean west of the International Date Line and north of the equator during 1983.

It will include their intensity, duration, name, areas affected, deaths, missing persons (in parentheses), and damage totals.