The weather forecast for New Zealand this weekend is a mix of sun, cloud and rain with a disorganised and slow moving low pressure system forming in the Tasman Sea.
Air pressure over the North Island remains high so approaching fronts attached to the Tasman low will weaken as they push in to it.
Rain is likely to be heavy along the South Island’s west coast but as the front falls apart as it heads north it will weaken with only light showers or drizzle expected morning and night in Auckland and Northland.
Cloudy conditions are likely across many regions in the north, centre and west this Saturday and Sunday with light showers or drizzle quite likely on Sunday.
Eastern areas may well remain mostly dry.
On Sunday the low, with a central air pressure of only 1009hPa (hardly even a low) will slowly drift towards New Zealand while a high will form east of the lower North Island coast.
Early next week the low is likely to bring more showery weather to the west.
on 17/09/2009 11:54pm
Im noticing a possible southerly outbreak for next week on long term model forecasts. what are the chances of snow in coastal canterbury?
on 18/09/2009 4:46am
Yea im looking at the same thing yea i would say snow in canterbury definately the isobars are going straight down to the pole so yea looks like it may be abit chilly next week wednesday is when it starts making it presents felt , A late southerley blast . What do you guys at weather watch think ?
on 18/09/2009 5:20am
Definitely a cold snap on the way starting early Wednesday in Southland and spreading through Canterbury on Thursday. Our high for Timaru on Thursday is just 8 degrees. Probably wont be cold enough for snow to low levels in Canterbury but a low dusting around Southland and may be Otago is possible. It will be very short lived though with westerlies kicking in soon after. One to watch!