A very small area of low pressure is feeding in a very wet but narrow band of rain into the upper North Island. This has lead to flooding just north of Auckland and more flooding are highway problems are possible across Wednesday PM and may also affect Coromandel Peninsula into Thursday - but eases across Thursday gradually. Elsewhere across New Zealand high pressure has lead to mainly sunny and dry weather. More frosty conditions continue on Thursday however a warmer westerly flow is returning to the country by Friday and the weekend. This may be a little warmer for many regions than the temperatures you have had in recent days - it will also flush away the polar air left over from the Antarctic blast last weekend.