Low cloud spreading over the South Island near a low pressure trough is generating areas of rain, heaviest in the west. Cloud over the North Island near another weak trough is causing showers. High cloud reaching the lower South Island in the jet stream is not causing rain.
In December 2014 we upgraded our lightning network to the latest in sensor technology as used by the world's leading meteorological agencies. This has resulted in changes and improvements to the lightning data you will now see. The main changes are: