2 experiences spring to mind...
2012 Coolangatta, Austrailia. (Gold Coast) We were holidaying on the 14th floor of this fantastic high rise. On our last night, there was the most intense lightening storm I've ever witnessed. Constant lightening strikes all around us for hours.
Mid-90's, Northern Colorado.
I had gone hiking on one of my favourite peaks. When I got to the summit, I laid down to soak up the sun. Next thing I know, I wake up to ran falling on my face. The skies around me were BLACK. As I got up to repack my daypack, the hairs on my head began to stand on end. (Scheisse!) I ran as fast as I could off of the summit and found shelter in this little cave for the next hour as the storm passed. I honestly thought I was a goner that day.