I just happened to be awake and looking out the window when this event happened. I tried to triangulate from my bed to where the flash happened and came up with a direction closer to Sheboygan rather that Manitowac. Hope this helps.
Location
Address
Appleton, WI
Latitude
44° 15' 37.12'' N (44.26031°)
Longitude
88° 23' 32.22'' W (-88.392283°)
Elevation
231.571518m
Time and Duration
Local Date & Time
2017-02-06 01:27 CDT
UT Date & Time
2017-02-06 07:27 UT
Duration
≈3.5s
Direction
Moving direction
From up right to down left
Descent Angle
224°
Moving
Facing azimuth
164.38°
First azimuth
166.34°
First elevation
19°
Last azimuth
166.88°
Last elevation
19°
Brightness and color
Stellar Magnitude
-23
Color
White
Concurrent Sound
Observation
Yes
Remarks
Sounded like a loud thunder boom(sonic boom)
Delayed Sound
Observation
Yes
Remarks
it took over three minutes, maybe longer, for the sound to reach me.
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
It was a large bright flash like a power transformer blowing up(which I had witnessed one night).