Warkworth Region (Auckland)

Severe Thunderstorm Watch

Period: 3hrs 43min from 6:17am - 10am Sat, 30 Sep

Area: Northland, Auckland

Forecast: Thunderstorms are expected to affect Northland and Auckland this morning. These thunderstorms are expected to be accompanied by heavy showers, hail and strong west to southwest winds. These is also a risk of SEVERE THUNDERSTORMS in localised places north of Albany bringing damaging winds gusting greater than 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 Watch

Period: 20hrs from 4am - midnight Sat, 30 Sep

Area: Auckland including Great Barrier Island, and Coromandel Peninsula

Forecast: Westerly quarter winds (west to northwest at first, then west to southwest from late Saturday morning) may approach severe gale in exposed places.

Mangawhai Region (Northland)

Severe Thunderstorm Warning

Area: Kaipara, Far North and Whangarei

Forecast: At 06:37 am, MetService weather radar detected a line of severe thunderstorms lying from OMAPERE to WAIPOUA FOREST to TUTAMOE. This line of severe thunderstorms is moving towards the northeast, and is expected to lie from KAIKOHE to NGAWHA SPRINGS to AWARUA at 07:07 am and from KERIKERI to KAWAKAWA to TOWAI at 07:37 am. These thunderstorms are expected to be accompanied by very heavy rain, damaging wind gusts and hail.

Impact: Very heavy rain can cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous. Very strong wind gusts can break branches from trees, damage roofing, and make driving hazardous especially for high-sided vehicles and motorcycles. Hail can cause damage to crops, orchards and vines and may make driving conditions hazardous.

Severe Thunderstorm Watch

Period: 3hrs 43min from 6:17am - 10am Sat, 30 Sep

Area: Northland, Auckland

Forecast: Thunderstorms are expected to affect Northland and Auckland this morning. These thunderstorms are expected to be accompanied by heavy showers, hail and strong west to southwest winds. These is also a risk of SEVERE THUNDERSTORMS in localised places north of Albany bringing damaging winds gusting greater than 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 Watch

Period: 12hrs from 6am - 6pm Sat, 30 Sep

Area: Northland

Forecast: Westerly quarter winds (west to northwest at first, then west to southwest from late Saturday morning) may approach severe gale in exposed places.