New Zealand, Severe Weather, Level 3: Flights cancellation due to severe weather in Wellington – North Island, New Zealand [Update 3] September 19, 2023September 19, 2023 [email protected]Travel Alert Update 2023-09-19: According to the sources from Monday (18 September), mass power outages were reported across North Island due to heavy winds. Reportedly, Manawatu, Tararua, Wairarapa and Whanganui were severely affected.