Can You Still Get Burned On A Cloudy Day?

In 2010 I decided it was time to take the plunge and go Salt River Tubing over in Mesa.  It was an unusually cloudy day for August (Lows recorded at 78 degrees!) and rain was predicted so I thought “Who needs sunscreen?” and decided to float down the river on the delish day with no sunscreen or sun block. Hours passed and I didn’t see any color of red on my skin or feel irritated by the sun.  As the tubing came to an end and I needed to actually stand up to get out of the river I realized…