I’m a sucker for clouds. Thursday was an interesting day to incorporate wispy thin, icy cirrus clouds and the yearly cycle of NASCAR at Infineon Raceway in Sonoma.

Cirrus clouds and road on the backside of Infineon Raceway in Sonoma, Thursday June 17, 2010. (Kent Porter / Press Democrat) 2010

Preparing to roll in to Infineon Raceway in Sonoma, Thursday June 17, 2010. (Kent Porter / Press Democrat) 2010

Preparing to roll in to Infineon Raceway in Sonoma, Thursday June 17, 2010. (Kent Porter / Press Democrat) 2010

A ferris wheel, a new attraction at Infineon Raceway in Sonoma, Thursday June 17, 2010. (Kent Porter / Press Democrat) 2010