The bulk of this document was written when I was a Typhoon Duty Officer and METSAT Coordinator (MSC) at JTWC on Guam. The content is based on several sources, some listed listed below.  The remainder of this history is based on documentation I found after moving to Headquarters Pacific Air Forces, Director of Operations, Weather Division, Programs Section (HQ PACAF/DOWX).  For more thorough information on these topics, refer to the following sources and contributors:

References.

• JTWC Annual Typhoon Reports and Annual Tropical Cyclone Reports
• Halsey's Typhoons, by Adamson and Kosco
• History of the Joint Typhoon Warning Center, by 1Lt John Pickle, 1988
• Thor's Legions: Weather Support to the US Air Force and Army, 1937-1987, John F. Fuller, 1990

Acknowledgments, References, Table of Contents                                                                1
World War II Era                                                                                                                          2
Post World War II Era                                                                                                                 3
JTWC Formation, 1958-1959                                                                                                    4
JTWC Mission and Manning                                                                                                     5
JTWC Area of Responsibility (AOR)                                                                                       6
JTWC Tropical Cyclone Satellite Reconnaissance                                                               7
REALIGNMENT, RENAMING AND RELOCATING                                                             8
List of JTWC Directors                                                                                                              9

Images

WC-130 Hercules                                                                                                                       Cover
DMSP Satellite depiction                                                                                                           Cover
Supertyphoon Paka SSM/I Image 1028Z, 15 Dec 1997                                                       Cover
Fig 1.  WB-24 Liberator                                                                                                             2
Fig 2.  Post World War II five tropical storm warning units                                               3
Fig 3.  WB-29                                                                                                                                3
Fig 4. The JTWC Area of Responsibility growth                                                                   6