Weekend situation

Saturday 20th - Sunday 21st July, 2019 

SATURDAY: Rain slides down the eastern SI with heavy falls, heavy snow in the mountains. Westerlies and showers for the NI.
SUNDAY: Showers in the eastern SI, patchy rain around East Cape and surrounding regions (BOP, Hawke's Bay). Dry elsewhere.

 Weekend weather 1907





14 day outlook 14 Day Outlook Portrait w white bg 1907

A low pressure system is dominating New Zealand across the next few days bringing rain, showers, snow and varying wind directions. The low will be parked over central NZ for Friday and Saturday then shifts to north east of Bay of Plenty and Gisborne on Sunday. Rain will spread across both islands on Friday and Saturday with rain this weekend shifting to the eastern South Island pulled down from the sub-tropics. Rain may be heavy at times with heavy snow on the Southern Alps. Early next week winds are light and, in fact, may come in from the east for a few days. Westerlies are coming back at the end of next week (just a little later than we originally said). 






Pasture Soil Moisture NIWA 1807

Rainfall is returning to healthier levels and despite the westerly flow now dominating (and likely dominating again late next week) we are also getting some rain makers into eastern regions (like this weekend and showers next week for a time). Canterbury's now the driest region in the country soil-moisture-wise so the weekend rain will be welcome, even if a bit patchy. Next week kicks off with easterlies then turns westerly late week - this, coupled with sun, means more mild weather is coming.










Precipitation outlook

Percipitation mm 1807


Percipitation 1807


Weather Trends


Rain / showers affect both islands for a time over the next few days, then next week we have showers mainly in northern and eastern regions of both islands. Later next week showers return to the west. Overall, a little drier than normal.


Varying winds over the next few days as the centre of a large low moves over NZ. Generally we have westerlies in the north and SE winds in the south. Next week has light easterlies (or calm) then windy westerlies return late week.


Above normal for Friday in a number of regions (only slightly) then next week a similar pattern of average to maybe slightly above average. Any colder than normal weather will be fairly isolated.


Heavy rain in Otago and parts of Canterbury next couple of days may cause some ponding. Up to 1 metre of snow for the tops of the Southern Alps. A few isolated northern thunderstorms possible on Friday or Saturday.