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Heavy rain warning issued for BOP

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UPDATE 9.31AM: A heavy rain warning has been issued for the Bay of Plenty and Coromandel area.

A front is forecast to move east across New Zealand today, with a low deepening near East Cape this evening before moving away to the southeast, says the MetService.

"The front is expected to bring periods of heavy rain to many places and Heavy Rain Watches and Warning are in force.

"Additionally, strong to gale northeast flow preceding this front is expected to affects parts of the upper North Island while strong to gale force winds are expected around the deepening low near East Cape and Wind Watches related to these are also in force.

"People are advised to stay up to date with the latest forecasts in case further areas are added, or Watches are upgraded to Warnings."

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HEAVY RAIN WARNING - ORANGE

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Heavy rain may cause streams and rivers to rise rapidly. Surface flooding and slips are also possible and driving conditions may be hazardous.

Area: Bay of Plenty west of Kawerau

Valid: 13 hours from 9am to 10pm Wednesday

Forecast: Expect 60 to 80mm of rain to accumulate. Peak rates of 10 to 20mm per hour.

Change note: Upgraded to an Orange Warning.

Area: Coromandel Peninsula

Valid: 11 hours from 9am to 8pm Wednesday

Forecast: Expect 50 to 70mm of rain to accumulate, especially in the east. Peak rates of 10 to 20mm per hour.

Change note: Upgraded to an Orange Warning.

Area: Northland

Valid: 3 hours from 9am to 12pm Wednesday

Forecast: Expect a further 30 to 50mm of rain to accumulate on top of what has already fallen, especially about eastern hills. Peak rates of 10 to 20mm per hour.

Area: Ranges of Gisborne north of Tokomaru Bay

Valid: 15 hours from 9am Wednesday to 12am Thursday

Forecast: Expect 50 to 70mm of rain to accumulate. Peak rates of 10 to 20mm per hour.

Change note: Upgraded to Orange Warning.

Area: The northwest ranges of Nelson

Valid: 11 hours from 9am to 8pm Wednesday

Forecast: Expect a further 70 to 100mm of rain to accumulate on top of what has already fallen. Peak intensities of 10 to 20mm per hour.

Area: The ranges of Westland

Valid: 7 hours from 9am to 4pm Wednesday

Forecast: Expect a further 50 to 80mm of rain to accumulate on top of what has already fallen. Peak rates of 10 to 20mm per hour.

EARLIER:

Weather warnings continue across the country as Northland recorded 60 millimetres of rain overnight and gusts up to 75km/h.

On Tuesday, MetService issued severe weather warnings and watches for Northland, Bay of Plenty, Gisborne and Coromandel, as well as Nelson and Westland in the South Island.

They were for heavy rain and strong wind – and the worst of the weather was expected to hit overnight.

On Wednesday morning, Auckland was experiencing heavy rain and strong winds – but not enough to warrant a watch or warning.

Meteorologist Alwyn Bakker says Northland had the heaviest rain with its Kerikeri weather station recording 60mm of rain since 6pm on Tuesday.

Bakker says it's “reasonable rain” although no way near what Northland had endured in July.

It was also “gusty” in the region with stations recording winds of up to 75kmh, he said.

Fire and Emergency NZ says it hasn't attended any weather-related call outs in the upper North Island.

Further south in Nelson, weather stations had recorded more than 50mm of rainfall since 10pm on Tuesday with more heavy rain expected throughout the day.

In the ranges of Westland, more than 20mm of rain had fallen but Bakker said peak rain rates were still to come with more heavy rain expected.

Heavy rain will continue throughout the day in Northland, Nelson and Westland, expecting to ease in the evening.

On Thursday, a front is expected to move southeast over the North Island and upper South Island, while an associated low approaches the South Island’s West Coast.

The front is expected to spread strong showery west to northwest winds over the North Island then weaken, and become slow moving over the South Island on Friday.

A narrow ridge of high pressure moves over New Zealand on Saturday, followed by another low on Sunday.

Additional reporting by Stuff/Danielle Clent.

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