A huge sea surge has rapidly developed on the Bay of Plenty coast as Cyclone Cook makes landfall.
Swells peaking at 7 metres have been recorded at A Beacon, a nautical mile off the Tauranga Harbour Entrance.
The significant wave height is measuring 4.8 metres. That's double the readings from just half an hour before. The wind is averaging 44 knots with gusts of up to 51 knots, from the west.
With two hours remaining until high tide, the storm surge is likely to be significant along the coast and into areas of Tauranga harbour.