Key Takeaways
- Interislander and Bluebridge have cancelled multiple sailings across the Cook Strait due to forecasted high swells and strong winds.
- Heavy rain warnings are in effect for Auckland, Northland, the Coromandel Peninsula, Bay of Plenty and parts of the Tasman District, with localized downpours possibly reaching 40 mm h⁻¹.
- Rain is expected to turn to snow on several South Island highways (SH 7, 73, 8, 94 and Crown Range Road), prompting road‑snowfall warnings and possible closures.
- Orange wind warnings cover Wellington, Marlborough east of Seddon and the Marlborough Sounds, advising caution for high‑sided vehicles, cyclists and pedestrians on exposed routes.
- Swell warnings forecast waves up to seven metres on the southern Wellington and Wairarapa coasts, though evacuations are not anticipated.
- Transport agencies are monitoring conditions, preparing to close or restrict roads, and urging motorists to check forecasts and drive to the conditions.
Ferry Cancellations Across Cook Strait
Interislander announced the cancellation of several sailings for the end of the week as severe weather looms over the Cook Strait. On Thursday the 3:30 pm Wellington‑Picton and 9:30 pm Picton‑Wellington departures were scrapped. Friday saw the removal of the 3:30 am and 3:30 pm Wellington‑Picton services, together with the 9:30 am and 9:30 pm Picton‑Wellington trips. All affected passengers are being contacted directly and offered either re‑booking on alternative sailings or a full refund. The carrier cited “significant swells and high winds” forecast for the strait as the primary reason for the disruptions.
Bluebridge Service Reductions
Bluebridge also trimmed its timetable, cancelling over half of its scheduled sailings for tomorrow. The 8:15 am, 1:30 pm and 8:30 pm Wellington‑Picton voyages, as well as the 2:00 pm and 7:15 pm Picton‑Wellington crossings, have been called off. The operator warned that strong winds and large swells are expected to persist through the Cook Strait until Saturday, and that further delays or cancellations may occur if conditions deteriorate. Both ferry companies are maintaining close contact with MetService and will adjust operations as the weather evolves.
Heavy Rain and Flood Threat in Upper North Island
A wet Wednesday drenched much of the upper North Island, with Auckland, Northland and Great Barrier Island receiving heavy rain. MetService issued a heavy rain warning for the Coromandel Peninsula until 8 p.m., the Bay of Plenty west of Kawerau until 3 a.m. Thursday, and inland parts of the Tasman District west of Motueka until midnight. Forecasts predict up to 100 mm of rain, with localized intensities of 40 mm per hour likely, accompanied by the possibility of thunderstorms. These conditions raise the risk of localized flooding, slips and rockfalls, especially on steep terrain and poorly drained roads.
Snowfall Risk on South Island Highways
As the rain band moves south, MetService anticipates a transition to snow over higher elevations, impacting several key South Island routes. Orange snowfall warnings have been issued for Lewis Pass (SH 7), Arthur’s Pass and Porters Pass (both SH 73), Lindis Pass (SH 8), Milford Road (SH 94) and the Crown Range Road. Road users are advised to expect snow‑covered surfaces, reduced visibility and potential icy patches. Transport Agency contractors will monitor these highways tonight and are prepared to close or restrict access where necessary to ensure safety.
Wind Warnings and Safety Advice
An Orange Wind Warning covers Wellington, Marlborough east of Seddon and the Marlborough Sounds from Thursday night through Friday evening. Strong gusts pose particular hazards for high‑sided vehicles such as vans, trucks and campervans, as well as for vehicles towing trailers, light vehicles and motorcyclists. Agencies caution drivers to exercise care on exposed sections like Wainui Saddle on SH 1 (Transmission Gully) and SH 2 (Remutaka Hill). Cyclists and pedestrians using the Ngauranga‑Petone shared path should also stay alert. The wind increases the likelihood of treefalls, downed power lines and wind‑blown debris, prompting a reminder to drive according to conditions and to secure loose loads.
Swell and Coastal Hazards
Wellington Civil Defence Emergency Management has placed a swell warning on the southern coasts of Wellington and Wairarapa. MetService forecasts waves building to six metres early Friday morning, peaking near seven metres late Friday morning before easing in the afternoon. Although the swell heights are notable, officials said they are not expected to reach the levels observed a few weeks ago, and significant impacts to roads or private properties are not anticipated at this stage. No evacuations are currently planned, but coastal users are urged to stay clear of exposed beaches and cliffs during peak swell periods.
Regional Weather Drivers
MetService meteorologist John Law explained that the current unsettled pattern stems from a low‑pressure system pushing rain from Northland westward toward the Bay of Plenty, while a separate front moves up the country from the South Island, re‑introducing colder air. This interaction is responsible for the heavy rain in the north and the subsequent snow risk in the south. Law added that the return of colder air increases the chance of snowfall over the higher mountain passes, reinforcing the snowfall warnings already in effect for several South Island highways.
Additional Regional Alerts
Beyond the main warnings, a strong wind watch is active for Northland (north of Whangārei) from 9 a.m. to 6 p.m. Thursday, Taranaki from 7 p.m. Thursday to 6 p.m. Friday, Horowhenua and Kapiti Coast from 8 p.m. Thursday to 3 p.m. Friday, and the Buller, Grey and Westland regions from 1 p.m. Thursday to 10 a.m. Friday. These watches indicate the potential for gusty conditions that could affect travel, especially on exposed routes and for vulnerable road users. Motorists are encouraged to stay updated via official channels and to adjust travel plans accordingly.
Road Management and Agency Response
The New Zealand Transport Agency (NZTA) stated that its contractors will monitor highways throughout the night, ready to close lanes or impose restrictions if snow, flooding or wind‑related hazards develop. Drivers are urged to check the latest weather reports and highway updates before departing, to reduce speed, increase following distances, avoid sudden braking, and use headlights when visibility deteriorates. The agency also highlighted the importance of being prepared for localized flooding, slips, rockfalls and wind‑blown debris, especially in areas under active warnings.
Public Engagement and Closing Remarks
Readers are invited to share their weather observations by sending photos or videos to [email protected]. Meanwhile, the National Institute of Water and Atmospheric Research (NIWA) has noted that the overall pattern constitutes “active weather” across the country, underscoring the need for vigilance. As the system evolves, continued attention to forecasts and adherence to official advice will be key to minimizing disruption and ensuring safety for all travelers.