gbw - Lightning on 2020-08-12 (past hour at 17.02.30)

Screenshot of Lightning strikes on 2020-08-12 at 17.02.30 [BST] during the past hour, red rings show the most recent strikes (minutes) the browner the colour, the older the strike.

I would not have wanted to be in the Porthmadog to Bleanau Ffestiniog area ... I'll bet the power supply wavered a bit. Potentially, heavy rain could cause flooding.

Not my Image : grabbed from Lightning Strike application : fair use & educational purposes