Overview
- MetService kept orange heavy‑rain warnings active for Northland, Auckland, Great Barrier Island, Waikato, Waitomo, Taupō, Bay of Plenty and Tongariro National Park, with easing expected after Wednesday.
- Central Auckland recorded about 15.5–21 mm of rain in an hour, which MetService said carries a risk of local flooding.
- Bay of Plenty saw localized downpours of 25–40 mm per hour and remains under an orange warning, with the regional council activating its flood room and 80–110 mm more rain expected through Wednesday night.
- Transport officials reported flooding and delays on State Highway 25 between Whitianga and Tairua and a rockfall with small slips near Coromandel township, urging drivers to avoid floodwaters.
- NIWA warned western South Island high terrain could receive 200–300 mm of rain in about 24 hours, with rapid river rises possible and some watches liable to be upgraded if bands intensify.