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No emergencies - but a heavy rain warning is in place

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Heavy rain expected, high winds possible

12:17pm, 17 January 2017

Please be aware of the current MetService Severe Weather Warning for the ranges of northwest Nelson, during Wednesday night.

Heavy rain is expected and we also have a Weather Watch for the possibility of high winds across the region.

People camping and tramping in these areas should take care as rivers and streams will rise quickly with thunderstorms expected. Drivers in the region during Wednesday night and early Thursday should exercise caution.

A copy of the key information is below.

Please stay up to date with forecasts at the MetService website

These sites are also useful:

  • River Flow Report
  • Rainfall Report
  • Tides                                                                             


A period of heavy rain is expected from Wednesday evening until Thursday morning. In the 12 hours from 6pm Wednesday until 6am Thursday, 100 to 150mm of rain is expected to accumulate. Peak intensities of 20 to 30mm per hour from Wednesday evening, with thunderstorms possible.

SEVERE WEATHER WARNING ISSUED BY MetService AT 10:40am 17-Jan-2017 via

SIGNIFICANT HEAVY RAIN FOR THE SOUTH ISLAND WEST COAST AND CANTERBURY HEADWATERS, PLUS SEVERE NORTHWEST GALES FOR EASTERN PARTS OF CENTRAL NEW ZEALAND A deepening low over the Tasman Sea approaches the lower South Island on Wednesday, then continues to move eastwards on Thursday.

Meanwhile, an associated front moves onto the South Island during Wednesday, then moves northwards and crosses the remainder of the country on Thursday. This front is preceded by a very strong northwesterly flow, which brings heavy rain to western parts of central New Zealand and gales to much of the country.

The heaviest rain is expected about the ranges of Westland, where 400mm may accumulate from tonight until early Thursday morning.

Significant spillover into the Headwaters of the Canterbury lakes and rivers is also likely during this period. For Buller and the ranges of northwest Nelson, 100 to 200mm of rain is forecast in a 12 to 18 hour period from Wednesday afternoon into Thursday morning. This amount of rain will cause rivers and streams to rise rapidly, surface flooding and possibly slips.

In addition, damaging northwest gales are expected to affect much of central New Zealand for a time on Wednesday and Thursday. For Wairarapa, Wellington, Marlborough and Canterbury north of Ashburton, severe northwest gales gusting 150 or 160 km/h are expected in exposed places from late Wednesday afternoon. Winds of this strength can bring down trees and powerlines, damage unsecured structures, lift roofs and make travel hazardous.

Community Awareness Meetings

9:33am, 12 December 2016

The Nelson Tasman Civil Defence Emergency Management group is holding a number of public meetings throughout the District over the next couple of weeks starting with Motueka tomorrow night. The meetings planned in the aftermath of the Kaikoura earthquake last month will explain the current tsunami maps, what people should do, what to expect in the way of a warning and what is the best preparation. With the large number of comments and phone calls to our office after the November quake it was apparent there is not a common understanding of what people should do and where they can get information from, said Group Controller Roger Ball.…

Read more about Community Awareness Meetings

National Advisory: Potential Tsunami Threat CANCELLED

9:46am, 9 December 2016

No:  2 Issued 08:25 9 December 2017 The Ministry of Civil Defence & Emergency Management (MCDEM) has cancelled the Tsunami Potential Threat advisory issued earlier this morning. Cuation advised near the water We advise precaution to people who need to conduct activities in or on the water today, especially along the west coast of both the North and South Islands. There could be strong and unusual currents for the rest of the day, therefore MCDEM advise people to stay out of the water.…

Read more about National Advisory: Potential Tsunami Threat CANCELLED

Follow @nelsontasmancd on Twitter for the latest updates.

Sandbag information

Key links

Road reports

Automobile Association Roadwatch

NZ Transport Agency Highway Information South Island


NZ MetService weather information


Regional water information via telephone

Regional river flow and rainfall

View regional river flow data

View regional rainfall data

Email the Tasman District Council hydrology team

Earthquake and Tsunami


Pacific Tsunami Warning Centre

Tsunami sign holder?

Get Ready Get Thru website

If a disaster happened now, would you be ready?

Visit the 'Get Ready, Get Thru' website for more information and help in preparing your home, school and work for an emergency.