52db30bbb7b08214

28931546.pdf

NARA·NARA_PBB_597821_pdfs-1·pdf·34.5 MB·5 pages

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Source: mistral_ocr · confidence ~95%

page 1
SECRET
SECRET

Incident #173
DATE OF ISSUE 18 Sept 1945
TO: Commandant, U.S.,
FROM: (illegible)
TO: Commandant, U.S.
DATE OF ISSUE 1700 OUT
TIME: 12:30
TIME: 12:30
TIME: 18:30
NO. OF DEPARTURES: 1
DATE OF ISSUE: 10 - 15
TIME OF RECEIPT: 1
COMMANDER: (illegible)

SECRET
page 2
SECRET

UNCLASSIFIED

Incident #173 -- Shreveport, Iowa -- 13 September 1948

There is no astronomical explanation for this incident. It appears probable that a balloon was under observation.

UNCLASSIFIED

SECRET

7-3712-1A
page 3
HEADQUARTERS
AIR WEATHER SERVICE
Andrews Air Force Base
Washington 25, D. C.

In Reply
Refer To: AWH DSS
11 May 1949

SUBJECT: Unidentified Flying Objects

TO: Commanding General
Air Materiel Command
Wright-Patterson Air Force Base
Dayton, Ohio
ATTN: MCIAXO-3

1. Reference is made to letter from your headquarters, MCIAXS, dated 9 March 1949, subject "Unidentified Flying Objects," and first indorsement thereto by this headquarters, dated 31 March 1949.

2. The incident summaries 173 through 233 have been checked against routine weather-balloon ascents made by the Air Force, Navy and Weather Bur
page 4
No. 173: Rawinsonde released from Barksdale AFB at 1500 CST. Shreveport under influence of very tight low of a local nature which extended through the 500 mb. level. In all probability, rawinsonde balloon path was circular following isobar curvature around Shreveport, hence balloon was seen approximately two hours later in the same area. Assuming a balloon leak, not altogether uncommon, the rawinsonde could have remained low enough to be seen. Winds reported as high as 70X account for speed. Conclusion: Rawinsonde balloon.
page 5
Dr HYNEK'S EVALUATIONS EXTRACTED FROM PROJECT GRUDGE REPORT.

INCIDENT INDEX

1. Astronomical

a. High probability:
#26, 27, 30, 31, 32, 33, 34, 48, 49, 59, 60, 66, 69, 70, 94, 95, 96, 97, 98, 101, 102, 103, 104, 116, 119, 132, 136, 140, 147, 148, 158, 174, 184, 185, 187, 197, 203, 204, 208, 216, 219, 238.

b. Fair or low probability:
#19, 20, 23, 24, 28, 35, 36, 46, 50, 63, 67, 80, 82, 93, 100, 112, 120, 121, 129, 130, 144, 153, 165, 166, 167, 175, 192, 199, 202, 205, 220, 230, 240.

2. Non-astronomical but suggestive of other explanations

a. Balloons or ordinary aircraft:
#3, 11, 22, 41, 42

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