New Zealand's cold snap is about to be defeated as warmer weather sets in.
随着天气转暖，新西兰的寒潮即将消退。

cold snap：寒流，寒潮；
defeat：击败

High pressure to our east will encourage a sub-tropical northerly flow, bringing temperatures that will be several degrees warmer than average.
我们东面的高压将会带来一股亚热带偏北气流，带来比平均温度高几度的气温。

sub-tropical：亚热带的
northerly：北方的，向北的；来自北方的

NIWA says many places will experience their warmest temperatures so far this spring.
NIWA说，今年春天，许多地方将经历到目前为止最暖和的天气。

"To give you perspective, parts of the South Island have overnight lows this week that are very similar to the maximum daytime temperatures they had last week during the cold, wintry, southerlies!" WeatherWatch says.
“更形象点说，南岛部分地区本周夜间的最低气温与上周的最高气温非常接近！上周大风呼啸，非常寒冷。”WeatherWatch说。

wintry：寒冷的，冬天的；
southerlies：南风

"Daytime highs are well up with a number of places expected to make it to the 20C mark this week, maybe even the mid-20s for some spots in the east or inland."
“本周，许多地方的日间最高气温有望达到20度，东部或内陆的一些地方甚至可能达到25度左右。”

At this stage, Wednesday looks like it will be the warmest day nationwide.
目前看来，周三将是全国最温暖的一天。

However after this comes a cool-down later in the week, with the southern half of the South Island to be worst affected.
不过，本周晚些时候气温会降下来，南岛南部受到的影响最为严重。

"A low is also forming in the Tasman Sea and will likely bring a late-week burst of rain, showers and another South Island temperature drop," WeatherWatch says.
“塔斯曼海也正在形成一个低压，可能会导致本周晚些时候的骤雨、阵雨和另一波南岛温度下降，”WeatherWatch说。

burst of rain：突然下雨

"With a damp, cold, wintry change later this Thursday, peaking Friday and easing Saturday some farmers in the lower South Island in particular may have tough wind chills for newborn livestock."
“本周四晚些时候天气将变潮湿、寒冷，能会在周五达到高峰，周六有所缓解。南岛南部的一些农民尤其受影响，这可能会给刚出生的牲畜带来寒风。”

wind chills：大风凛冽

High pressure returns this upcoming weekend before the next low out of the Tasman Sea hits this time next week.
高压在本周末再次到来，下周这个时候塔斯曼海的下一个低压会再次来临。

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