Play was suspended on day 2 of the Tshwane Open at the Copperleaf Golf and Country Estate in South Africa, due to local and probably dangerous lightning storms. Charl Coetzee / Getty Images Charl Coetzee was leading in the clubhouse at -12 under par for his two rounds when play was suspended. Charl has a one shot advantage over Mark Tullo from Chile. The players who have not completed their second rounds are not likely to unseat Charl from his lofty position, while chasing his maiden victory, he dominated the morning session with a -7 under par, 65 that gave him a four shot clubhouse lead. Mark Tullo then reduced that gap to one shot with an afternoon round of -6 under par, 66 which was luckily completed just moments before the official klaxon horn was sounded, as the dark and dangerous clouds rolled in. Charl said he had enjoyed his day; " I enjoyed it, I haven’t had this much fun in a long time. It’s always nice to play well and it goes both ways, the better you play, the more you enjoy it. I hit the ball nicely and hit a lot of fairways. I also made a lot of greens and made a lot of putts, and that was the key. There’s a lot of golf left and some of the first-round leaders only teed off now, so we’ve got today and two more rounds. I felt like I’ve started playing better over the last few weeks." Mark Tullo said he has been consistently playing very well; " I played very well again, I played well from tee to green, putted well and all-around I played very consistently. I’m very happy that I produced such a solid round. That siren sounded just after we finished, and that’s the best thing that can happen to you. To come back here early in the morning is not what you want to do. The tournament starts on the Sunday back nine, and a long as I’m in the hunt come Sunday I’ll be happy." There are still two rounds to go, and with a field containing a lot of very good players the final outcome is still very much in the balance, and the hands of the unpredictable weather.