U.S. Weather Bureau observer Earl Oksendahl saw five oval-shaped objects. Crew of USAF 779th AC&W station tracked an unidentified target on FPS-3 radar at 158,000 foot altitude and 240 mph.

Project Blue Book Assessment:

I. Description of Incident

At 0243 MST on 13 November 1952 a weather observer taking a theodolite reading on a weather balloon at Glasgow, Montana, reported he observed five oval-shaped objects with "lights all around them" flying in a V-formation. Each object seemed to be changing position vertically by climbing or diving, as if to hold formation. The speed appeared to be very fast, the total time of observation being 20 seconds. The reported objects came from the NE, went straight over the center of the town, made a 90° turn, and departed toward the SW.

At 0220 MST an AC&W Station obtained an unidentified radar trade beginning at 47°48 N - 108°05 W and lost it at 47°38 N - 105°05'W. The altitude was estimated to be 153,000' and the speed was 210 knots.

II. Discussion of Incident

If these data are plotted it shows that it is doubtful that the track observed on radar and the reported visually observed objects were the same. While the radar blip was going straight east, south of Glasgow (Glasgow being north of the radar track), the observer saw something come in from the NW, turn, and go to the SE over his position.

Since, the objects were reported directly over the observer and no sound was heard, it is doubtful as to whether the objects were aircraft.

III. Conclusion

This was not a combination radar-visual sighting of the same object. There are no conclusions as to the nature of the reported visual sighting. The radar track, however. could be due to weather.

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