Aaaahhhh.... what a sight! What a symphony!
We had 4mm of rain up to 8.30am and then it really started raining. So far it has hit the 10mm point in the rain gauge (since 8.30am).
Update at 11.30am: 30mm of rain! :)
Update at 4pm: 48mm.
Update 24 hours later (8.30am to 8.30am next morning): 53mm.