Expect another dose of rain and wind this week
11 September 2017
Expect another dose of ua (rain) and hau (wind) later this week
An incoming ridge of high pressure has a calming influence on the weather ākuanei (today) and ākengokengo (tomorrow), but a trough over the Tasman Sea is readying itself to bring another period of wet weather to western areas later this week, while central regions will be buffeted by strong winds.
Unstable southwesterlies continue to pepper exposed parts of Aotearoa with showers today, some of those heavy and thundery with hail over the upper Te Ika a Maui (the North Island). Places from Waikato northwards are likely to experience the heaviest of the showers, hail and gusty conditions today. As the ridge moves onto our shores during Rātū (Tuesday), any remaining showers in eastern areas clear early and showers in the south and west become few and far between. “Growers and gardeners beware that, as winds ease, morning frosts become likely in sheltered places,” said MetService Meteorologist Peter Little.
On Rāapa (Wednesday), winds turn to the northwest as the ridge moves eastwards and a trough of low pressure over the Tasman Sea approaches. This trough will bring periods of rain to western areas, which will likely be heavy about the West Coast of Te Waipounamu (the South Island) on Rāpare (Thursday) and Rāmere (Friday).
In addition, severe northwest gales are possible about central parts of Aotearoa. Mr Little added, “This strong northwesterly flow brings warm and moist air across the country later this week, which will push daytime temperatures into the twenties about some eastern areas.”