When the Korean War broke out in June 1950, the 20th Weather Squadron was already providing meteorological information to the Far East Air Forces from its headquarters at Nagoya, Japan, and from weather stations scattered around the theater. For the next six months, the 20th furnished crucial combat weather data to the Fifth Air Force, the U.S. Eighth Army, and other UN forces by deploying numerous detachments in Korea. The unit's personnel briefed tactical organizations before missions and sometimes flew on the aircraft of those organizations in order to obtain weather data over enemy-held territory. Forward-deployed weather personnel with front-line troops radioed weather information to rear areas. Some of the unit's meteorological information contributed to the success of the Inchon invasion in September. By November, ten of the squadron's detachments had served at thirteen locations in South and North Korea, moving with UN ground troops and operating small mobile weather stations sheltered in tents. The squadron operated a C-47 aircraft to move equipment and supplies to its scattered weather stations in Korea. In mid-November, it turned over its Korean weather responsibilities and operating locations to the 30th Weather Squadron and focused on Japan, where its headquarters had remained.

Stations

Nagoya, Japan duration.

Campaign Streamers

None. Note: Individual squadron detachments operating in Korea may have received campaign streamers on their own.

Service Streamers

Korean Theater.