The magnificence of this sky reflects the oppressive heat it holds. I can't remember when I've experienced such dense heat. It was perfectly quiet and still before the cool front moved in from the northwest. It is always a thrill for me when I catch the clash of the cold and hot fronts as they race across the plains. This one produced so much lightning that the high school football game was called off.
Two Eye Workshop 
There’s a difference between the heat of September and that of July and August. This was a magnificent photo! I hoope it was an effective cold front?