thud, thud, thud. At first we thought it was a heard of elk.
Delayed Sound
Observation
Yes
Remarks
There wasn't much time between intervals maybe 500ms to 1s
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
Multiple flashes. We also heard what must of been it hitting the ground. What first got our attention was the irregular thud thud thud. At first we thought it was a heard of elk, but then we kept seeing big flashes of light that corresponded with the sound. At first we thought the flashes were lightning but there were no clouds.