Paula Creamer, who also shot 65, said delays test a player's resolve.
"The rain delays, they come and go," she said. "It's one of those things that you've kind of got to use your experience from the past. ...
"It's been a long day and I'll still take a 65, that's for sure," she joked.
For Thigpen, the rain delay was a chance to put the course's evacuation plan to use. Forty-two vans were used to take the players' groups to the clubhouse and locker room.
"The clubhouse was packed," she said.
When first-round play resumed an hour and 56 minutes later, fans gathered at the first, 10th and 18th holes as if nothing happened.
Kristy McPherson, who finished with a 1-under 71, was through 15 1/2 holes at the delay. She said the weather affected her game.
"The winds switched 180 degrees," she said.
The delay pushed back tee times for golfers by two hours.
Thigpen said Thursday's delays will push tee times up for players Friday and Saturday, adding that players who did not finish their round Thursday will finish it first thing Friday.
"The (LPGA) officials will do everything they can to finish a round," she said.
According to the National Weather Service, the forecast for Friday is partly cloudy with a high of 88 degrees. There is a 40 percent chance of thunderstorms Saturday with a high of 86 degrees. Sunday should be sunny with a high of 81.
Thigpen said tournament officials do not want to impact preparations for the major Ricoh Women's British Open tournament next week.
"We do not want to finish on Monday," she said.
The rain wasn't all bad news for the tournament. David Murphy of Chesapeake brought his daughter, Emily, on Thursday.
"It's been fun," he said. "She's been real excited to be here."
Murphy said the delay allowed Emily to get signed hats, balls, photos and trading cards from players in the clubhouse.
The rain also provided relief to golfers from the heat and humidity that started the day.
"The players appreciated it," Thigpen said.