MetService News Release
17 August 2017
Damp Weekend in Store for Most
As Wellingtonians gather their scattered belongings after gusts of 118km/h were recorded about the hill suburbs this
morning, it will be a relief that winds are forecast to remain moderate until late Saturday. From then, winds are
expected to turn southerly as a complex low pressure system makes its way over central New Zealand.
Severe weather is not forecast to ease so quickly for those on the west coast of the South Island today. Heavy rain gave
way to showers with hail and thunderstorms this morning, adding to the already-sizeable rainfall accumulations.
“185mm of rain has been recorded about Westland and Buller in the 18 hours leading up to 9am this morning, causing
surface flooding on inland roads,” reported MetService meteorologist April Clark “During Friday, the complex low begins
to develop west of the country and moves gradually eastwards on the weekend, bringing a mixed bag of weather across the
country”.
Eastern areas generally hold onto the dry weather on Friday, while the west can expect some form of rain, with
particularly gloomy conditions north of Taranaki in the morning.
The trend over the last few days of ‘fine in the east, wet in the west’ reverses over the South Island on Saturday as
the low deepens and moves over central New Zealand. As winds turn southeast over the South Island, daytime temperatures
drop.
“The forecast high for Christchurch on Saturday is 13C, as opposed to today’s balmy high of 19C,” said Clark. As
freezing levels drop late Sunday it’s possible snow will lower to 500 metres in the far south at night.
This low pressure system also brings periods of rain to the North Island on the weekend. This system is dynamic, and
further detail will be added to the forecast as confidence in it’s track improves into tomorrow. Stay up to date with
the latest information at metservice.com
ends