For the uninitiated in Monsoon rains. 2000m vis in Rain is not the same as 2000m vis in Miist. 2000m vis in Rain at 150 knots gives you 500m Forward Vis. ie near Cat 2. Monsoon driver.
From the Bangkok Post
A Thai passenger, Chawalert Jitjamnong, who suffered back injury fleeing the chaos, said the plane's captain had notified the passengers the ''weather was very bad and he could see nothing'' only a short time before he lost control of the plane and it went skidding off the runway.