Just a note about misplaced tiles. I notice that I have always gotten misplaced tiles when querying WMS (proj) servers.

EDIT: A screenshot of this weather layer overlaid on (Google Streets) Vancouver; I can watch for rain while my kid is trick-or-treating.



EDIT2: Unfortunately, this shows only fairly heavy rain. It is lightly drizzling right now outside my window, but the weather layer shows no rain in my area.