For those of us my vintage and older and can recall something that hit Darwin called Tracy. Here is some footage of Althea that smashed Townsville on Christmas Eve, 1971.
both Althea and Tracy broke wind recording instruments at the same speed, some 240kph. Both have been suggested as hitting 320kph in reality.
http://au.youtube.com/watch?v=K9Jq_zOh_9k
enjoy, from the comfort of your armchair ;)