Jeev Milkha Singh posted the low round of the day as he fired a 5-under 67 to move into a share of second place at minus-8. Prayad Marksaeng managed an even-par 72 to remain in a tie for second.
Defending champion Paul Casey carded a 2-under 70 and shares fourth place at 7-under-par 209 with Gonzalo Fernandez-Castano. The Spaniard shot a 4-under 68 Saturday and was one of just five players to post a round in the 60s.
Scores soared on Saturday as winds gusted up to 35mph.
Lynn and Marksaeng battled for the lead throughout the third round. After Marksaeng birdied No. 2 to join Lynn at minus-9, Lynn birdied the same hole to move one clear. Lynn dropped a stroke on the third, but got back to 10 under with a birdie on the fifth.
Marksaeng, who bogeyed the fourth, ran off three straight birdies from the fifth to jump into the lead at 11 under.
However, the Thailand native tripped to a bogey on eight to fall back into a share of the lead at Honghua International Golf Club. Marksaeng fell two behind after a double bogey on the par-5 11th.
Lynn parred five straight holes before finding water with his approach on the 11th. He also walked away from the par five with a double bogey as he fell into a tie for the lead at 8 under.
Marksaeng and Lynn birdied the 12th, while Lynn made it two in a row with a birdie on 13. Lynn sank his third straight birdie on the 14th to get to 11 under, while Marksaeng birdied 14 to get back to minus-10.
Lynn faltered to a bogey at the 15th though and they were again tied for the lead at 10 under. The 32-year-old Lynn tripped to a bogey at the last to end at minus-9.
'Every hole out there was tough,' said Lynn. 'I just had to hang on and commit to every shot and I'm very pleased with level par. Tomorrow is another day. Hopefully I can get the same sort of feelings when I go out there.'
Lynn has led after three rounds three times in his European Tour career. Each of those three times he coughed up the lead finishing tied for third, fourth and fifth respectively.
Marksaeng ended his round with a double bogey after three pars in a row to fall back to minus-8.
'I tried to stay in control and I thought I could still do it,' Marksaeng said. 'On 18, I tried to fade it right, but the wind came and it was unbelievable as the wind carried my 3-wood tee shot into water. I aimed the ball well right, but after 100 yards the ball went left into water very quickly. It was tough.'
Singh got off to a quick start with birdies on two and three. He moved to 6 under with a birdie on No. 5. After a three-putt bogey on six, Singh came right back with a birdie on the seventh.
The India native parred his next three holes before a birdie at the 11th got him to minus-7. The 34-year-old Singh then dropped in a birdie on the 16th. He parred his final two holes to share second place.
'It was like a twister or a mini tornado, which knocked this tower down,' said Singh, who watched a television tower get blown over. 'I thought the players behind us would get blown into the water as these guys were just holding their hats and pushing themselves down.'
Peter Fowler and Marcus Fraser each carded 3-under 69s Saturday to move into a share of sixth at 6-under-par 210. They were joined there by Simon Wakefield (70). Hendrik Buhrmann and Jarrod Lyle are one stroke further back at minus-5.
Simon Dyson, Stephen Gallacher, Soren Hansen, Peter Hanson, Soren Kjeldsen, Miles Tunnicliff and Ter-Chang Wang share 11th place at 4-under-par 212.