red hypnotic light in the sky at night.

this wasnt a craft or object so much as a light effect that covered the whole sky.my father and i were standing on the gravel driveway at the side of our house as i looked up into the sky and noticed a red shimmering light effect in the sky seeming to emminate from a center and rippling out.this effect initially reminded me of the northern lights that are sometimes visible in the winter sky here in canada.this was mid-summer and the colour was luminous red.as i watched i remember drawing my father`s attention to the light but don`t remember his response as the light became brighter and rippled more as i continued to watch.it is my memory that as the event continued it seemed to make a gentle sizzling or electric crackling.as the event proceeded it seemed to entrance me and i remember staring up and into the center of this thing for what was at least a half hour before it started to dissipate.i had a vague feeling that my father was similarly transfixed for the duration.we have never spoken about the event since.
Date is approximate.  PD