I've been an amateur astronomer for years. I know the difference between planes, helicopters, and cloud flashes from lightning.
Location
Address
Henley, MO
Latitude
38° 24' 1.43'' N (38.400397°)
Longitude
92° 21' 19.11'' W (-92.355309°)
Elevation
268.256m
Time and Duration
Local Date & Time
2018-06-14 00:10 CDT
UT Date & Time
2018-06-14 05:10 UT
Duration
≈1.5s
Direction
Moving direction
From up right to down left
Descent Angle
239°
Moving
Facing azimuth
180°
First azimuth
175°
First elevation
20°
Last azimuth
155°
Last elevation
10°
Brightness and color
Stellar Magnitude
-8
Color
White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
I saw the initial streak just a little east of where i was looking. It started off strong, then dimmed, before flaring brightly in a way that lit the sky to the south south east.