Atmospheric soundings for Melbourne Airport at 2012-03-29, 00:00 UTC (should be 10:00 AM locally, right?):
http://weather.uwyo.edu/cgi-bin/sounding?region=pac&TYPE=TEXT%3ALIST&YEAR=2012&MONTH=03&FROM=2900&TO=2900&STNM=94866
At first I was hoping to see a correlation, a layer with a low...