By Deb S. (Usedtobeayooper) on Saturday, April 25, 2009 - 08:18 am:
Very cool pictures.  I wanted to say the windowpanes too, but when it melted it would be wet.  
 
So maybe it was 2002 and 2006!!!  There may have been water in the flower.  But I thought I saw water flowing in the kid's little construction area. 
 
These two look pretty waterless to us: 
 
2006 
 
2007 
 
But we suspect these are NOT dust clouds: 
 
2002}