Heavy rain watches have been upgraded to warnings as a period of intense downpours approaches Northland, parts of Auckland, and the Coromandel Peninsula. MetService has issued orange heavy rain warnings for Monday and Tuesday, anticipating prolonged rainfall, potential thunderstorms, and localized heavy showers driven by a strong, humid easterly flow.
Widespread Rainfall Expected
Northland is forecast to receive up to 110mm of rain between tonight and Tuesday afternoon, with some northern and eastern areas potentially seeing over 150mm. Auckland north of the Harbour Bridge, Great Barrier Island, and the Coromandel Peninsula are expected to experience 80 to 120mm of rain from early Tuesday, with eastern and higher elevations possibly receiving up to 140mm.
The threat of heavy rain extends into Wednesday, with the potential for another watch or warning to be issued. A low-pressure system of tropical origin is moving southeast and is expected to approach the North Island on Wednesday, bringing with it heavy rain and strong east to northeast winds.
Uncertainty Remains in Forecast
MetService has cautioned that the path and intensity of this tropical low are currently uncertain. Forecasters state it is likely to pass over the central North Island, potentially extending a trough onto the South Island. The system is expected to move east of mainland New Zealand later Wednesday, but the possibility of heavy rain and strong winds remains across much of the northern and central parts of the country. This uncertainty means forecasts may change significantly in the coming days.
Northland has already experienced the impacts of recent heavy rainfall. Roads and bridges were washed out on Sunday, isolating some communities along the east coast. Crews have been working to restore access, with nearly all previously affected areas across Whangaruru and much of the Whangārei District now accessible.
State Highway 2 through the Waioweka Gorge, a key route between Gisborne and Ōpōtiki, is expected to remain closed for several weeks following dozens of slips triggered by heavy rainfall on Friday. Over 40 motorists were rescued by helicopter after becoming stranded.
Current Weather Warnings
Heavy Rain Warning – Orange
- Northland – 17 hours from 9pm Monday to 2pm Tuesday
- Auckland north of the Harbour Bridge and Great Barrier Island – 16 hours from 2am Tuesday to 6pm Tuesday
- Coromandel Peninsula – 24 hours from 2am Tuesday to 2am Wednesday
Frequently Asked Questions
What areas are currently under a heavy rain warning?
As of this report, Northland, Auckland north of the Harbour Bridge, Great Barrier Island, and the Coromandel Peninsula are all under an orange heavy rain warning issued by MetService.
How much rain is expected to fall?
Up to 110mm of rain is expected in Northland, with potential for over 150mm in some areas. Auckland north of the Harbour Bridge, Great Barrier Island and the Coromandel Peninsula are forecast to receive between 80 and 120mm, with up to 140mm possible in eastern and higher areas.
What is the current status of State Highway 2 through the Waioweka Gorge?
State Highway 2 through the Waioweka Gorge is likely to remain closed for several weeks after heavy rainfall caused numerous slips and washed out sections of the road.
Given the potential for significant rainfall and ongoing disruptions, what steps are you taking to prepare for the possibility of severe weather in your area?
