It was cloudy but the booms were loud and distant to the west. Later the news reported meteor sightings that night to the SW by Brainerd 100 miles away- This made me think that that would explain the unusual booms
Location
Address
Grand Rapids, MN
Latitude
47° 8' 45.76'' N (47.146045°)
Longitude
93° 28' 26.25'' W (-93.473958°)
Elevation
393.96109m
Time and Duration
Local Date & Time
2013-12-27 23:00 CST
UT Date & Time
2013-12-28 05:00 UT
Duration
≈7.5s
Direction
Moving direction
From left to right
Descent Angle
90°
Moving
Facing azimuth
265°
First azimuth
265°
First elevation
23°
Last azimuth
-
Last elevation
22°
Brightness and color
Stellar Magnitude
-
Color
i only heard 3 loud booms it was cloudy
Concurrent Sound
Observation
Yes
Remarks
I didn't see a fireball but heard 3 deep distant booms about 2-3 seconds apart. I thought the Boswell power plant in Cohasset Mn had exploded but the sound was south of it-slightly south of due west-Boswell is slightly north of west-my wife also heard it and wondered if it was snow storm thunder when we heard it
Delayed Sound
Observation
Yes
Remarks
Didn't see a fire ball it was cloudy
The 3 booms were 3 to 4 seconds apart and evenly spaced
