Nevada County fairgoers were surprised Friday night when most of the lights and power in the fairgrounds flickerded and then went dark at appproximately 8:20PM. The power outage began while the Monster Truck event was taking place at the main arena. One attendee desribed what the crowd saw.

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The fireworks the fan saw was a transformer blowing just outside of the fairgrounds.
There was a moment of confusion in the crowd and then the trucks came back out onto the track.

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After the event, the crowd exiting the arena had some assistance from law enforcement and arena staff.

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However outside the arena it became more difficult, but not impossible to get around.

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Because the power did not come back on, Fairgrounds administration, made the decision to begin evacuating the fairgrounds just before 9:00 PM.