Australia sudden temp drop right now

It's 2.00am here in Sydney and all stations are recording our usual max. min temp for mid winter hitting out of no where in the past few hours

Just lately we've had record breaking warm spells for this time of year.

It's very out of balance 'ol earth

[edit on 5/5/10 by Caveat Lector]

Exactly how cold is it over there ?

I was wondering if large oil slicks covering the ocean retard water evaporation?

Maybe not enough clouds are being formed on the planet due to vast areas of water insulation in the Gulf of Mexico.

This is just a wild guess.