Top End wet season. So what's it all about? What's so different to what you learned in Moorabbin or Bankstown ? At least 3 pilot's have departed this life in the last 3 years in Australia after dealing with "what's the big deal with Top End "Wet Season", all had M/E CIR (A) and all were commercial pilots. There have been others too, can't recall all. What is different is that you can't rely on being visual at your destination at MSA/LSALT, your destination most likely does not have a published approach and you may not be able to land as already posted. Tropical wet season thunderstorms typically have a base of 500 to 800 feet, they form up as clusters of cells about 3nm in diameter and maybe 3 to 5 nm apart. They form rapidly in the hot moist unstable atmosphere, are very intense for a little while then move on and dissipate rapidly. To get to your destination you will need to be below the base and clear of the cell, probably at 500' agl, orbiting and holding while waiting and trying to orient yourself with what features you can recognise. You may have woven your way through the clusters of cells only to find that the door has just shut behind you as the unstable atmosphere spawns yet another cell. Fortunately we only have to endure this for 2, sometimes three months of the year. If you think this is all "a piece of **** " don't try it with passengers who might think you know what you're doing.