Warkworth / Rodney Region

Friday 9th May - Rain with heavy falls, easing to a few showers from late afternoon, clearing at night. Strong northeasterlies, gusting 90 km/h in exposed places, changing southwesterly towards evening.

Heavy Rain Watch

Period: 11hrs from 9am - 8pm Fri, 9 May

Area: Auckland and Great Barrier Island

Forecast: Periods of heavy rain. Rainfall amounts may approach warning criteria and possibly exceed them in localised areas, especially in downpours. Moderate chance of upgrading to a Warning.

Strong Wind Watch

Period: 8hrs from 8am - 4pm Fri, 9 May

Area: Auckland including Great Barrier Island

Forecast: Northeast winds may approach severe gale in exposed places. Moderate chance of upgrading to a Warning.

Saturday 10th May - Fine. Fresh southerlies, easing in the afternoon.

Sunday 11th May - Fine. Southerlies, easing.

Mangawhai / Northland Region

Friday 9th May - Rain, with possible downpours and thunderstorms from late morning, clearing this evening. Strong northeasterlies, gusting 90 km/h in exposed places, changing southwesterly this afternoon.

Heavy Rain Warning - Orange

Period: 14hrs from 6am - 8pm Fri, 9 May

Area: Northland

Forecast: Expect 80 to 120 mm of rain, with possibly up to 150 mm in localised areas, especially in downpours and possible thunderstorms. Peaks rates of 25 to 40 mm/h. Note, a Severe Thunderstorm Watch is also in force for the region. Low chance of upgrading to a Red Warning.

Impact: Streams and rivers may rise rapidly. Surface flooding, slips, and difficult driving conditions possible.

Action: Clear your drains and gutters to prepare for heavy rain. Avoid low-lying areas and drive cautiously. Preparedness advice.

Severe Thunderstorm Watch

Period: 8hrs from 9am - 5pm Fri, 9 May

Area: Northland

Forecast: An active trough is expected to bring a period of heavy rain and possible thunderstorms to Northland during Friday morning and afternoon, as detailed in the Heavy Rain Warning. There is a moderate risk of localised Downpours of 25 to 40 mm/h with this trough. Rainfall of this intensity can cause surface and/or flash flooding, especially about low-lying areas such as streams, rivers or narrow valleys, and may also lead to slips. Driving conditions will also be hazardous with surface flooding and poor visibility in heavy rain.

Strong Wind Watch

Period: 8hrs from 6am - 2pm Fri, 9 May

Area: Northland

Forecast: Northeast winds may approach severe gale in exposed places. Moderate chance of upgrading to a Warning.

Saturday 10th May - Fine. Fresh southerlies, easing in the afternoon.

Sunday 11th May -Fine. Southerlies, easing.