PROJECT BLUE BOOK

PROJECT 10073 RECORD
1. DATE · TIME GROUP LOCATION
31 July 66 31/0600z Sergeant Bluff, Iowa (1 Witness)
3. MOUFCE 10. CONCLUSION
Military BALLOON P0. 2t
4. NUIMBER OF OBJECTS 4. NUMBER OF OBJECTS
One BALLoON was launched at O600z by the local weather b BALLOON was launched at O6o0z by the local weather bureau. bureau.
5. LENGTH OF OBSERVATION 11. BRIEF SUMMARY AND ANALYSIS 11. BRIEF SUMMARY AND ANALYSIS
30 Minutes Observers watched object start and stop while moving in its watched object start and stop while moving in its
6. TYPE OF OBSERYATION northerly directicn. The object circled to the left, rose directicn. The object circled to the left, rose
and was gone evidently to the north. and was gone evidently to the north. Observers were Observers were approx- X
Ground-Visual Ground-Visual mately 7 miles SW of Sergeant Bluff. mately 7 miles SW of Sergeant Bluff.
7. . COURSE A weather balloon was released from the top of the admin-
istrative office located at the Sioux City Munici pal Airport
N in Sergeant Bluff, Iowa. The general direction of the
8. PHOTOS ballocn was to the north and rising.
n Yes
IXNo
9. PHYSICAL EVIDENCE
n Yos
XOXNo
FORM
F.TD 5D49 0.320 (TNF) thie form maw he nead
•

. SERGEBNT B20F9 301010
0610
UNCLASSIFIED
o1l
DEPARTMENT OF THE AIR FORCE
STAFF MESSAGE BRANCH
INCOMING MESSAGE
AF IN: 17848 (1 Aug 66) S/ga Pg l of 3
ACTION: RDC-4 INFO:
SMB A043CZCBVA502 ADV CY XOPX & DIA
PTTU JAW RUCISKA0005 2131427-UUU--RUEDHQA.
ZNR UUUUU
P 0114 152 P 011415Z
FM 30 ADIV SIOUX CITY MAP ICHA FM 30 ADIV SIOUX CITY MAP ICNA
TO RUWMFVA/ ADC TO RUWMFVA ADC
RUWTFLA/10 AF RICHARDS GEBAUR AFB MO RUWTFLA/10 AF RICHARDS GEBAUR AFB MO
RUEDHQA/HQ USAF
RUEDHQA WASH DC
BT.
UNCLAS 30 0IN B1078 AUG 66. F CR AD0IN AT ADC;
SAFOI AT OSAF. SUBJ: UFO REPORT. REF PARA 14A,
AFR 200-2: (1) SHAPE-NONE SEEN; (2) SIZE-NONE
SEEN (3) ALTERNATING WHITE, YELLOW, RED AND
GREEN; (4) ONE. (5) NO FCRMATION; (6) NONE;
(7) NONE; (8) NO SOUND; (9) NCNE; REF PARA. 14 B: (7) NONE; (8) NC SOUND; (9) NCNE; REF PARA. 14E:
(1) THE NEXT DOOR NEIGHBORS AFTER THEIR CHILDREN (1) THE NEXT DOOR NEIGHBORS AFTER THEIR CHILDREN HAD
SEEN IT; (2) 50 DEGREES WEST, HEADING NCRTH; (3) SEEN IT; (2) 50 DEGREES WEST, HEADING NCRTH; (3)
DISAPPEARED DISAPPEARED OVER SIOUX CITY, ICVA, WHICH IS 7 MILES CVER SIOUX CITY, ICVA, WHICH IS 7 MILES
Z Z.
AFHQ O-309C FORM UNCLASSIFIED

UNCLASSIFIED
DEPARTMENT OF THE AIR FORCE
STAFF MESSAGE BRANCH
INCOMING MESSAGE
AF IN: 17848 (1 Aug 66) Pg 2 of 3
SEEMED TO START AND STOP RAPIDL MOVING IN ITS
PAGE 2 RUCISKA0005 UNCLAS
NORTHERLY DIRECTION (5) OBJECT CIRCLED TO THE LEFT,
ROSE AND WAS GONE EVIDENTLY TO THE NCRTH; (6) OBJECT ROSE AND WAS GONE EVIDENTLY TO THE NCRTH; (6) OBJECT
WAS VISIBLE APPROXINATELY 30 MINUTES. REF PARA 14 C: WAS VISIBLE APPROXINATELY 30 MINUTES. REF PARA 14 C:
()SEEN BY NAKED EYE FROM BACK YARD OF HOUSE.
REF PARA. 14D: (1) 0600Z, 13 JUL 66; (2) NIGHT TIME AND TIME AND
CLEAR. REF PARA 14E: SERGEANT BLUFF, ICWA. REF
PARA 14F: (1) NA; (2) A2C JOHN R. LUEDKE, AF19833110,
4644 SPT SG, COVAUNICATIONS CENTER (O/L 762). RELIABILITY
UNKNCWN. REF PARA 14G: (1) CLEAR; (2) SURFACE 140 DEGREES
TRUE AT 5 KTS, 6K FT 130/5 5 KTS, 18K 300/10, 16K 350/15,
20 K 338/25, 30K 330/45, 50K 312/35, 80K NO REP0RT; (3) NO
CEILING; (4) CLEAR AND 12 MILES; (5) NO CLCUD COVER;
(6) NONE; (7) 1.11 DEGREES PER 1000 FRON 5,000 TO 10,000
AND 2.12 DEGREES PER 1,882 FRCN 10,000 TO 30, 000. REF
PARA 14 H: A LARGE INVERSICN EXISTED WITH A RISE IN PARA 14H: A LARGE INVERSICN EXISTED WITH A RISE IN
TEMPERATURE AT HIGHER ALTITUDES. REF PARA 14 1: TEMPERATURE AT HIGHER ALTITUDES. REF PARA 141:
NONE. REF PARA 14J: AT APPROXIMATELY 0600Z ON THE 06007 ON THE
Z 2 :
AFHQ JAM 63 FORM 0-309C UNCLASSIFIED

.'
UNCLASSIFIED
DEPARTMENT OF THE AIR FORCE
STAFF MESSAGE BRANCH
INCOMING MESSAGE
AF IN: 17848 (1 Aug 66) Pg 3 of 3
IGHT OF 31 JUL 66 A WEATHER BALLCON WAS RELEASED FROM
SIOUX CITY MUNICIPAL AIRPCRT IN STOUX CTTY MONICIPAL AIRPCRT TN SERGEANT ELUFF, TCWA. SERGEANT BLUFF, ICWA.
PAGE 3 RUCISKA0005 UNCLAS PAGE 3 RUCISKA0005 UNCLAS
THE GENERAL DIRECTION VAS TO THE NORTH AND RISING.
DIVISION INTELLIGENCE OFFICER. THIS FFICER FLELS THAT DIVISION INTELLIGENCE OFFICER. THIS OFFICER FELS THAT
THE OBJECT SIGHTED WAS THE WEATHER BALLOON RELEASED
BY THE U.S. WEATHER BUREAU LOCATED IN SERGEANT BLUFF,
IONA. REF PARA 14L: A WEATHER BALLOON WAS RELEASED
BY THE WEATHER BUREAU.
BT
NNNN
AFHQ JAN 3 FORM 0-309C UNCLASSIFIED