RainWatch: (March 1) tracking the rain

March 1 marks the official start to Autumn in NZ - but what makes it "official" and why are so many people saying summer still has 3 more weeks to go? We also track any potential rainmakers (a few showers coming in this weekend) and we update you on the sub-tropical low expected north of NZ around mid-March, and how - if it all - it might impact us.