The 1992 Pacific typhoon season had no official bounds; it ran year-round in 1992. Despite this, most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.
The scope of this article is limited to the Pacific Ocean, north of the equator and west of the International Date Line. Storms that formed north of the equator and east of the Date Line in 1992 are part of the 1992 Pacific hurricane season. In the West Pacific basin, tropical depressions have the "W" suffix added to their number. Storms reaching tropical storm intensity of 34 kn (63 km/h) sustained winds were assigned a name by the Joint Typhoon Warning Center (JTWC). Storms with sustained winds exceeding 64 knots (119 km/h) are called typhoons, while intense typhoons with sustained winds exceeding 130 knots (240 km/h) are designated super typhoons by the JTWC (see tropical cyclone scales).
There were a total of 33 tropical cyclones in the Western Pacific in 1992. 32 of these formed within the basin, and 1 storm, Tropical Storm Ekeka, formed in the Central Pacific basin, crossing the Date Line to enter the Western Pacific. Out of the 33, 32 became named tropical storms, 21 reached typhoon intensity, and 5 reached super typhoon strength. Storms are listed in numerical ascending order by their JTWC tropical depression numbers except for Ekeka, and not in alphabetical order of names. Thus, Tropical Storm Zack (22W) is listed before Super Typhoon Yvette (23W).
Typhoon Omar was a destructive storm to Guam, causing over a foot of rain there, amounting to $702 million in damage (2008 USD) but no deaths. In Taiwan, the storm caused 2 deaths and heavy rainfall. The name Omar was retired after this season.
Developing to Omar's west, Polly began its life on August 23 and reached tropical storm strength on the 26th. As a developing monsoon depression, it had a large outflow. Polly retained that throughout its lifetime, inhibiting intensification past 60 mph (97 km/h) winds. On the 30th, the storm hit southeastern Taiwan, and on the 31st it hit China.
Torrential rains produced by Tropical Storm Polly triggered devastating floods that killed 202 people and injured hundreds more. More than 5 million people were left homeless across Fujian and Zhejiang Provinces in China. Total losses from the storm were roughly $450 million.
Tropical Storm Ted, having developed on September 14, stalled off northern Luzon on the 20th. It turned northward, and hit southern Taiwan on the 22nd as a minimal typhoon. Ted weakened to a tropical storm over the island, and hit eastern China on the 23rd. It turned to the northeast, hit South Korea, and became extratropical on the 24th.
At least 61 people were killed by Typhoon Ted and 51 others were reported missing. Losses from the storm reached $360 million in China.
On October 30, a tropical disturbance began to form west of the International Date Line. The JTWC then issued a Tropical Cyclone Formation Alert late the next day as the system moved westward and started warnings on Tropical Depression 29W on November 1. However, intensification was severely inhibited by outflow from nearby Typhoon Dan, and the depression failed to develop. It passed within 30 nm (55 km) of Wake Island, causing a minor pressure dip and gusts to 32 kt (60 km/h). No damage was reported, due to the relative weakness of 29W as compared to Dan, which ravaged the island 3 days earlier. The depression dissipated on November 2 over open ocean.
On November 8 a tropical depression formed from the monsoon trough east of the Philippines. It crossed the islands, and strengthened to a tropical storm in the South China Sea on the 12th. Forrest continued westward until hitting and crossing the Malay Peninsula on the 15th. It reached a peak of 145 mph (233 km/h) winds in the Bay of Bengal before hitting Myanmar on the 21st. Its history in the Indian Ocean can be found in its seasonal article.
At least two people were killed by Tropical Storm Forrest and 31 others were reported missing after a ship capsized.
Typhoon Gay was the strongest and longest-lasting storm of the season, forming on November 13 near the International Date Line. As it moved to the west, Gay steadily intensified and moved through the Marshall Islands as an intensifying typhoon. After passing through the country, it intensified its peak intensity over open waters. The JTWC estimated peak winds of 305 km/h (190 mph) and a minimum barometric pressure of 872 mb (25.8 inHg). However, the Japan Meteorological Agency (JMA), which is the official warning center in the western Pacific, estimated winds of 205 km/h (125 mph), with a pressure of 900 mbar (27 inHg). Typhoon Gay weakened rapidly after peaking due to interaction with another typhoon, and it struck Guam with winds of 160 km/h (100 mph) on November 23. The typhoon briefly re-intensified, although it weakened as it turned toward Japan and became extratropical on November 29.
The typhoon first affected the Marshall Islands, where 5,000 people were left homeless and heavy crop damage was reported. The nation's capital of Majuro lost power during the storm and experienced power and water outages. No Marshall Islands citizens were killed, although the typhoon killed a sailor who was traveling around the world. When Gay struck Guam, it became the sixth typhoon of the year to affect the island. Most of the weaker structures were destroyed during Typhoon Omar earlier in the year. Due to its substantial weakening, Gay had a disrupted inner-core that dropped minimal rainfall, which caused extensive defoliation of plants due to salt water scorching. Further north, the typhoon destroyed a house on Saipan from high waves.
Tropical cyclones in the Western North Pacific were named by the JTWC. The first storm of 1992 was named Axel and the final one was named Hunt. The name Omar was retired after this season and replaced by Oscar.
One storm which formed in the Central Pacific basin, Hurricane Ekeka (01C), crossed into the Western Pacific basin as a tropical storm, keeping its original name and "C" suffix, with the JMA giving the designation 9202.