Warkworth Region

Wednesday 29th May

Severe Thunderstorm Warning

Area: Rodney, Gulf, Thames Coromandel, Kaipara, Auckland City, Waikato, Hauraki, Waitakere, Franklin and Albany

Forecast: At 09:30 am, MetService weather radar detected a line of severe thunderstorms lying from OFFSHORE KAIPARA WEST COAST to OFFSHORE AUCKLAND WEST COAST to MERCER.

This line of severe thunderstorms is moving towards the northeast, and is expected to lie from OFFSHORE KAIPARA WEST COAST to KAUKAPAKAPA to FIRTH OF THAMES at 10:00 am and from TOKATOKA to LEIGH to MATARANGI at 10:30 am.

These thunderstorms are expected to be accompanied by damaging wind gusts.

• Impact: Very strong wind gusts can break branches from trees, damage roofing, and make driving hazardous especially for high-sided vehicles and motorcycles.

Severe Thunderstorm Watch

Period: 9hrs from 10am - 7pm Wed, 29 May

Area: Auckland, Great Barrier Island, Coromandel Peninsula, Waikato

Forecast: Squally showers embedded in a very strong southwest flow are expected across Auckland, and western parts of Waikato and Coromandel Peninsula from late morning through to early evening (Wednesday). There is a moderate risk of SEVERE THUNDERSTORMS during this time, with localised damaging wind gusts in excess of 110 km/h. Wind gusts of this strength can cause some structural damage, including trees and power lines, and may make driving hazardous.

Strong Wind Warning - Orange

Period: 17hrs from 10am Wed, 29 May - 3am Thu, 30 May

Area: Auckland and Great Barrier Island

Forecast: Severe gale southwesterlies gusting 120 km/h in exposed places. The strongest winds are expected this evening

Impact: Strong wind gusts could damage trees, powerlines and unsecured structures. Driving may be hazardous, especially for high-sided vehicles and motorcycles.

Mangawhai Region / Northland

Wednesday 29th May

Strong Wind Watch

Period: 15hrs from noon Wed, 29 May - 3am Thu, 30 May

Area: Northland south of Kaikohe

Forecast: Southwest winds may approach severe gale in exposed places.