Alaska UFO 1947 and Project SIGH

Summary

In 1947, several reports of unidentified flying objects reached the U.S. military in Alaska. These cases were analyzed under Project SIGH, an initiative by the Air Weather Service. Investigators tried to determine if the observed objects could be weather balloons launched routinely. Factors like wind direction, speed, and the location of nearby weather stations were considered. Despite efforts, many cases remained unexplained.

The report concludes that some incidents could have been balloons, but others did not match the available data. Cases with astronomical and non-astronomical descriptions are highlighted. The document also includes evaluations from astronomers and scientists, such as Dr. Hynek, who analyzed the data. Project SIGH aimed not only to identify balloons but also to improve methods for collecting information on unidentified aerial phenomena. This investigation reflects the early government interest in unexplained aerial events.