Vortex streets in South China Sea

This true-color Moderate Resolution Imaging Spectroradiometer (MODIS) image from January 15, 2003, shows a pattern within a pattern in the clouds over the East China Sea. The clouds to the west appear as a tightly-knit, interlocking pattern of circles, while those to the far east appear more row-like, especially near the northern edge of the cloud bank. In the center is a phenomenon called a vortex street, an alternating double row of vortices often produced in the wake of an obstacle to air flow, such as the small island off the tip of South Korea at top center.
Source: Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC

Typhoon Maemi (15W) off Korea

Typhoon Maemi strikes a heavy blow on South Korea in this Moderate Resolution Imaging Spectroradiometer (MODIS) image captured by the Aqua satellite on 12 September 2003, at 1:55 pm, local time. With sustained winds of 135 miles per hour, the storm was the strongest to hit South Korea since records began. Media reports say that at least 104 people died in the storm. Maemi is the Korean name for a cicada that legend says chirps madly to warn of a coming typhoon.
Source: Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC

Typhoon Rusa (21W) south of Korea

In this series of true-color images from the Moderate Resolution Imaging Spectroradiometer (MODIS), Typhoon Rusa can be seen menacing first Japan and then Korea. The series includes images captured by the Terra and Aqua MODIS instruments between August 27 and August 31, 2002.
Source: Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC

Pacific Ocean Surface Winds from QuikScat

This image shows wind speeds and direction in the Pacific Ocean on August 1, 1999, gathered by the SeaWinds radar instrument flying onboard the QuikScat satellite. The intense surface winds of Typhoon Olga, represented by yellow spirals, can be seen moving around South Korea in the China Sea. QuikScat tracks its birth as a tropical depression in the Philippines and its northward journey in the western Pacific to its landfall in Korea. The eastern North Pacific is dominated by a persistent high-pressure system, whose anticyclonic (clockwise) flow creates strong winds blowing parallel to the coast of Canada and the United States. Three groups of very intense winter storms can be seen around Antarctica, which are associated with the season of maximum sea ice in that region of the world.
Source: Scott Dunbar, NASA JPL