The thunderhead of a passing storm with mounds of mammatus clouds beneath.

So I went out chasing what promised to be a big, powerful thunderstorm about 30 miles away only to be greeted by a wall of water. I get home, have dinner, and discover I’m under a gigantic thunderhead with cirrus fringes and gobs of beautiful mammatus beneath all surrounded by a beautiful blue sky. Storm chaser Dorothy was right, “There’s no place like home.” — September 21, 2018

That’s not fog that car is headed towards — it’s a “wall of water — torrential rain about to descend upon your intrepid photographer ending his remote storm pursuit.