The Indonesian NTSC has asked the Australian ATSB for assistance in seeking weather reports from Australian flight crews flying in to Denpasar at the time of the accident. This is from the ATSB wesbite.
Investigation: AE-2013-076 - Assistance to Indonesian NTSC - Collision with terrain, PK-LKS, B737-800, Denpasar, 13 April 2013
If I recall correctly, there was a Virgin Australia 738 which performed a go-around during the time of the accident. I'm not sure whether the Virgin Aust aircraft was ahead or behind the Lion Air that ditched.