Rain and lightening had forced tournament officials to suspend play on Friday, with many players having not played a single hole. They resumed early this morning, and Lawrie was faced with a eight-footer for birdie on the 12th, where he had marked his ball on Friday as the horn sounded.
Ironically, it was the 12th green last year where Lawrie three-putted to drop out of the sudden-death playoff, won eventually by Paul McGinley. This time, however, Lawrie rolled in the birdie to go to 10-under.
'I thought I was facing a six-footer at the 12th, but on closer inspection it was closer to eight feet, a little bit right to left, and it went straight in the middle. Just the sort of start I was looking for, said Lawrie.
The former British Open champion then stuck a sand wedge to within inches on 16 for a tap-in birdie. He finished up his second round with a chip to four feet on the par-5 18th and knocked in the birdie for a course record-tying 65, and a tournament leading 12-under-par.
I played lovely again this morning,' mused Lawrie. A satisfactory mornings work,' he said, before relaxing for a while and getting ready to play his third round in the afternoon.
Lawrie's closest pursuers are Australian left-hander Richard Green and England's John Bickerton, who both stand at 10-under-par.
Green, the first-round leader and a one-time winner on the European Tour, didn't enjoy his early morning wake-up call but managed to shoot a 69 with five birdies on two bogeys.
Im happy with my form. I am striking the ball nicely and Claude Harmon, my coach, is definitely helping me get back on track, commented Green, who like Lawrie shot a record-tying 65 in his opening round.
Bickerton, who has never won on tour, posted his second straight 67 that included five birdies on the back nine.
It would be lovely to go on from here but I am not going to pressure myself into thinking I am going to win, admitted Bickerton.
Three other players, Robert Karlsson of Sweden, England's Jeremy Robinson and South African Roger Wessels, are five shots off the pace at minus 7.
Full-field scores from The Celtic Manor Resort Wales Open