The scope of this article is limited to the Pacific Ocean, north of the equator and west of the International Date Line.

Tropical Storms formed in the entire west pacific basin were assigned a name by the Joint Typhoon Warning Center.

While relatively weak, Patsy brought heavy rain and strong winds to parts of the Philippines and Taiwan, causing localized flooding and property damage.

Severe Tropical Storm Ruth (Kuring) battered the Philippines in 1977, primarily affecting Luzon.

The storm caused significant damage to homes and infrastructure, displacing thousands of people and resulting in fatalities.

After passing northern Luzon and dropping heavy rains, Thelma turned to the north, where it reached a peak intensity of 95 mph winds.

The storm caused 25 additional fatalities to the island, with vast amounts of crop and property damage occurring.

Over the following two days, Babe quickly intensified, ultimately attaining its peak intensity early on September 8 with winds of 240 km/h (150 mph) and a barometric pressure of 905 mbar (hPa; 26.72 inHg).

During this time, the system gradually weakened and eventually it made landfall near Shanghai, China on September 11 as a minimal typhoon before dissipating inland the following day.

The previous typhoon brought the trough more northward, hence the unusually high latitude for a monsoon storm.

Strong high pressure to Dinah's northwest forced the storm to the southwest, where it crossed northern Luzon on the 15th and 16th.

Weak steering currents in the South China Sea allowed Dinah to drift, first then to the northeast then back to the west-southwest.

Generally favorable conditions allowed Dinah to reach typhoon strength on the 19th, but a developing tropical storm to its northeast caused it to weaken.

The building of the subtropical ridge forced Dinah to the southwest, where it hit southern Vietnam on the 23rd as a tropical depression.

Dinah brought heavy rain and flooding to Luzon that killed 54 people and left 11 others missing.

The depression brought minimal impact to land and caused no significant damage or loss of life.It only lasted two days.

The storm brought heavy rain and strong winds to parts of the Philippines and Taiwan, causing localized flooding and property damage.

The typhoon's heavy rains caused flash flooding that left 55 people dead with widespread damage.

It formed in late November and reached peak intensity with 125 mph (205 km/h) winds and a minimum pressure of 920 hPa.

Though it recurved and did not directly make landfall in the Philippines, it still brought heavy rains and strong winds to parts of the country, causing significant damage and loss of life.

Western North Pacific tropical cyclones were named by the Joint Typhoon Warning Center prior to 2000.

The Philippine Atmospheric, Geophysical and Astronomical Services Administration uses its own naming scheme for tropical cyclones in their area of responsibility.

Due to its impacts in the Philippines, PAGASA later retired the name Unding and was replaced by Unsing for the 1981 season.

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 1977.

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