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Monday’s weather outlook

A northwesterly airflow lies over New Zealand on Monday, a cold front and accompanying southwest change develops about the lower South Island in the morning reaching the lower North Island around midnight. This front will weaken as it moves northwards.

Expect a mix of sun and cloud for the upper North Island with light northwest winds, mostly cloudy for the lower western North Island (Taranaki to Wellington) with the odd spit, becoming a little more widespread later in the evening / overnight for a time. Strong to gale northwesterly winds through Cook Strait. The east coast has a dry day with high cloud.

Heavy rain about South Westland pushes northwards reaching North Westland in the afternoon, easing by evening as a southwest change moves through. Thickening cloud about Nelson, showers from afternoon, there may be a brief period of rain late afternoon / evening then clearing. High cloud for Marlborough, late afternoon / evening a few spits may spread from the west then clearing, gusty northwesterlies.

High cloud for Canterbury, strong northwesterlies in the morning north of Banks Peninsula then easing. Heavy rain spreads into the high country around midday then clearing late afternoon. Mainly dry nearer the coast, a southwest change does push through mid afternoon but only delivers the risk of a shower, it will bring cooler temperatures though after a warm morning / early afternoon.

A period of rain / showers moves through Southland early morning then Otago by midday with a cool southwest change, clearing late afternoon. Overnight further showers move in.

Expect highs in the late teens or early twenties for most of the North Island, perhaps sticking around the mid teens about the Central Plateau. The warmest spots will likely be Hawkes Bay / Gisborne. Highs in the late teens / early twenties about Nelson, Marlborough and Canterbury also. Elsewhere for the South Island sticks in the mid teens.

Monday 27th April 2020 3:00pm MSLP / rain map –

By Weather Analyst Aaron Wilkinson –


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