Spaniard Lara finished an impressive second round on 68 to move seven under par for the tournament and was joined by Lundberg of Sweden, who only managed 15 holes of his round before play was suspended because of lightning.
Lara, 34, picked up five birdies on the front nine with a bogey at the 15th the only blemish on a round which has seen him move firmly into contention at the midway point.
Lundberg bogeyed the sixth but still kept up with Lara by birdieing the 13th, 15th, 17th and the third after starting on the back nine.
Lara said: “I played really well on my back nine. I struggled a little bit early on because of the wind, but then made five birdies on my back nine, which added up to a good round. So I’m very happy..”
English duo Oliver Fisher and Gary Boyd are tied for third alongside Irishman Damien McGrane while overnight leader Peter Lawrie stuttered to a second-round 75 to slip down to tied 13th and McGrane felt he was lucky to go out in the afternoon session.
“We got the best of the weather, there’s no doubt about that,” he said “A round of 71 was a reasonable performance, although I probably played a bit better than that. It was a funny day out there, and a lot can go wrong on a day like that.”
Harrogate’s John Parry is on level-par 144 after rounds of 71 and 73, one shot better than Hull’s Richard Finch who improved by five shots on his opening round with a 70.