I think this may be the "avonmouth monster"; a plume of outflow from the works at Avonmouth. I took a photo of it some years back and asked BBC weatherman Ian Fergusson about it in the comments on this blog post—I'd recently done a tiny segment for his show "Wild Weather of the West" on how to photograph lightning—and that's what he said it was. This looks suspiciously similar and is in the right direction.
From wander: Lunchtime Reproduction (of an old photo...)
Taken: Mon 17 January 2022 12:52
Rating: ★★★
Taken: Mon 17 January 2022 12:52
Rating: ★★★
GPS Coordinates:
51.45454, -2.62898
Location: Leigh Woods
