An epic deluge event over the upper North Island was a significant multi-day heavy rainfall episode driven by an ex-tropical low that approached from the north, combined with a strong, humid easterly to northeasterly flow. This brought prolonged, intense rain to already saturated ground, leading to widespread flooding, landslides, road closures, evacuations, and unfortunately a loss of life. Here is a meteorological summary timeline of how the event unfolded. 11th Jan - A t r

2025 was an overall wetter and milder than normal year for upper North Island. The most extreme weather events were the Mangawhai tornado 26th January and Ex-tropical cyclone Tam on 17th April. Here were some observation highlights across the upper North Island over the year up to 7am 31st December. Max Temp: 30.9°c , Whitianga, Coromandel Peninsula 7th Dec Min Temp: -1.2°c , Ahuroa, Auckland & Waihi, Coromandel 23rd July Ave temp for 2025: 16.6°c  at our HGW climate statio

On July 30, 2025, at 11:24:50 NZT, a magnitude 8.8 megathrust earthquake struck off the Kamchatka Peninsula, Russia, about 119 km...

The M3.4 earthquake occurred just to the north of the Hauraki gulf associated with the ongoing earthquake swarm off Whangarei. It was...

Cyclone Tam impacted the upper North Island with severe gales and widespread flooding across Northland, Auckland and the Coromandel...

It's now 3 years on since the Hunga Tonga–Hunga Haʻapai 'VEI 6' submarine explosion that reached 57km into the mesosphere, sending...

It is time to say good-bye to 2024 in what was a quieter year of weather and geological events for upper North Island compared to the...

An interesting magnitude 2.1 shallow earthquake under the Hauraki Gulf this afternoon. It occurred on the extension of the Hauraki fault...

It's been 2 years since the largest volcanic eruption of the 21st century (so far), occurred at the Hunga Tonga–Hunga Haʻapai, submarine...

It is time to say good-bye to 2023 in what was a year of notable historical weather events for upper North Island. We will finish the...

A waterspout touched down into the Gulf this morning off Orewa with the sunrise making the funnel glisten. Waterspouts are more common...

After starting as a tropical depression on October 17th 1200km to the north east of Vanuatu, a tropical low was given the name 01U on...

A large shallow magnitude 7.7 occurred in the Loyalty Islands at 2:57pm NZT on Friday afternoon which triggered small tsunami waves...

Cyclone Gabrielle will go down as one of the most devastating weather events in New Zealand's modern history which affected many parts of...

After starting as a tropical depression (93P) on January 4th in Far North Queensland, late on 8th January a tropical storm 07P over the...

It is time to say good-bye to 2022. We will finish the year with a partly cloudy day in the mid 20’s with maybe some isolated showers and...

An intriguing series of shallow earthquakes in the last week including two M5.1 yesterday, 730km NE of the Hauraki Gulf. They are in the...

A Tasman low delivered waves of thunderstorm cells into the upper North Island over the weekend with one cell's cloud rotating enough to...

A vigorous east to south-easterly developed during the evening of 10th November associated with a subtropical low in Tasman. During the...

The first Godwit has arrived onto the upper North Island, a sign that the seasons are changing. Using her naturally gifted weather sense,...