Between Vinton & Oelwein, IowaAugust 1958

Insufficient Data

Summary

On August 21, 1958, a civilian witness observed an unidentified object between Vinton and Oelwein, Iowa. The object was cone-shaped with a rounded leading edge and measured 15 to 20 inches in diameter. It was bright with a tinge of ultraviolet light and appeared invisible to the naked eye. The object moved north and then south before becoming obscured by cloud cover. The sighting lasted 15 minutes. No weather or wind information was reported, and positional data were omitted. The Air Force evaluation concluded the sighting was possibly a balloon; however, the data was insufficient for evaluation.

Reported location

Between Vinton & Oelwein, Iowa

Date of incident

August 1958

State / country

IA / US

Page count

3 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 33

Original case file scans

Original case file · scanned by NARAPage 1 of 3

View transcribed text

PROJECT 10073 RECORD CARD

1. DATE                          5. LOCATION                    12. CONCLUSIONS
21 August 1958              Between Vinton & Oelwein,    G Was Balloon
                                    Iowa                        G Probably Balloon
3. DATE-TIME GROUP            4. TYPE OF OBSERVATION        G Possibly Balloon
Local           GMT 22/0130Z  M Ground-Visual              G Was Aircraft
[illegible]        [illegible]     G Ground-Radar              G Probably Aircraft
                                    G Air-Visual               G Possibly Aircraft
7. LENGTH OF OBSERVATION    6. NUMBER OF OBJECTS   5. COURSE   G Was Astronomical
15 mins                        one                    not given   G Probably Astronomical
                                                                  G Possibly Astronomical
10. BRIEF SUMMARY OF SIGHTING          11. COMMENTS          G Other
                                                              G Insufficient Data for Evaluation
Cone shaped obj w/rounded leading      Possibly balloon; however,  G Unknown
edge, 15-20 inches in diameter, bright  data not sufficient for
with a tinge of ultraviolet (invisible   evaluation.
to naked eye) Moved up to North & down
to South, then obscured by cloud. No
wx or wind info rptd. Positional data
omitted.

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Source: National Archives Catalog · NAID 28979547