ÉVIAN-LES-BAINS, France — Taking advantage of an earlier start time to get ahead of bad weather, Mi Hyang Lee surged to a four-under 67 on Friday to take a one-shot lead into the weekend at the Evian Championship.

Lee, ranked 37th, was even through 15 holes on the day before a birdie-birdie-eagle finish in the best of still conditions. Her clubhouse target of 10-under 132 only got tougher as threatened lightning strikes forced a delay and the heat was swept away by gusting winds.

Top-ranked Sung Hyun Park, who also played early, plus the seven-time major winner Inbee Park and Hyo Joo Kim, who thrived after a suspension that lasted 1 hour 5 minutes, were one shot back.

Lee cited good fortune in leading the newest women’s major after two rounds.

“I think I missed a lot of the green today, but was trying to think simple,” said Lee, a two-time winner on the L.P.G.A. Tour. “I had a little luck also.”