Weather patterns
The weather conditions were nearly perfect for the opening round, with temperatures in the upper 60s and winds at less than 10 mph.
"Today was about as easy as it's going to play," said Ogilvy, who was tied with Stenson at 6 under until taking a double-bogey on the 18th hole.
For forecast for the weekend, however, includes showers Saturday afternoon and the possibility of scattered thunderstorms Sunday, with winds up to 20 mph each day. The temperatures Sunday could be in the 40s.
"That's not going to be fun," Ogilvy said. "It makes the ball go a lot shorter when it's cold. Then there's a lot of elevated shots here, and in big winds it would be pretty tricky."