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Thursday’s Headlines: Watches and warnings issued, Frosty South Island Fri / Sat, Rain outlook

Here’s what is making the weather headlines today….


We’ve had some settled’ish weather lately, especially eastern regions with very pleasant days. But this is going to change.

A cold front moves up the east coast of the South Island today bringing wet weather, snow in the ranges also, possibly as low as 300m for parts of the far south this morning before easing.

We also have a front moving into the far north bringing heavy rain.

Metservice have issued a few watches and warnings in regards to this weather, you can see them here.


Friday morning should see a frosty start about the far south, while the map below is indicating temperatures below freezing in the Alps of the upper South Island this will be more to do with the air temperature v’s a ground frost.

Saturday morning temperatures are looking to get even colder, parts of the Mackenzie Country down through to Central Otago may start the day in the -5 to -10 degree range. Once again parts of the upper South Island about Mountainous areas (north of Banks Peninsula in the east) while cold and potentially below freezing are not as likely to have a frosty due to cloud cover.


The higher than average rainfall expected about Northland / Auckland and Coromandel below is due to a front that starts moving into the far north this afternoon bringing heavy rain, later this evening / overnight is when heavy rain reaches Auckland / Coromandel.

The bulk of the heavy rain for the eastern North Island is going to start from Friday afternoon about Gisborne then on Saturday heavy rain may affect Hawkes Bay / Wairarapa.

Saturday afternoon is when heavy rain starts affecting the eastern South Island north of Banks Peninsula, this continues for much of Sunday, finally easing on Monday if current guidance holds up.

The heavy rain about the southwestern corner of the South Island is first thing this morning then this eases.

The map below runs from today through to Thursday 27th July. Blue coloring means that part of the country is likely to see more rainfall than would normally be expected at this time of year, red means less rainfall is expected and white is an average amount of rainfall. The more intense either red or blue then either scenario is more true.

Precipitation percentage of normal through to Thursday 27th July 2023 – GrADS/COLA


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