West Coast communities urged to prepare as severe weather approaches

20 Oct 2025

West Coast Emergency Management (WCEM) is closely monitoring an incoming weather system expected to bring heavy rain, strong winds, and hazardous coastal conditions across the region this week.

WCEM works closely with Council teams to have staff on standby as we track developments and prepare to respond if needed.

MetService has issued a number of warnings for the West Coast and wider South Island.

MetService Severe Weather Warnings and Watches

Situation
A front preceded by a strong and humid northwest flow moves over New Zealand during Monday and Tuesday. Warnings and Watches for heavy rain and severe gales are in force. Please note: Another system brings heavy rain and strong winds to similar areas during Thursday and is likely to be significant and impactful.
Please stay up to date with the latest forecast.

Heavy Rain Warning - Orange
WESTLAND
Area: The ranges of Westland
Period: 21hrs from 9:00am Monday to 6:00am Tuesday
Forecast: Expect 200 to 250 mm of rain, but up to 300 mm possible about and north of the glaciers. Peak rates of 20 to 30 mm/h. Rain easing from the south Tuesday morning. 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.

GREY & BULLER
Area: Grey, Buller, Tasman District west of Takaka, Nelson Lakes National Park, Spenser Mountains and St Arnaud Range
Period: 16hrs from 9:00pm Monday to 1:00pm Tuesday
Forecast: Expect 90 to 140 mm of rain, especially about the ranges. Peak rates of 15 to 25 mm/h. Minimal 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.
Issued: 9:57am Monday, 20th October 2025 
Next Update: 9:00pm Monday, 20th October 2025
These conditions may impact travel, power, and access to some communities.

Claire Brown, Manager for WCEM, says that early preparation can make a significant difference during these kinds of weather events.

“We’re keeping a very close eye on this system and support our council teams to respond if needed,” Brown says. “We’re asking everyone across the West Coast to use today to get ready, secure your property, prepare for possible power outages, and avoid unnecessary travel.”
“People camping or travelling across the region, should take extra care. This is a powerful weather system, and being caught out in an exposed area overnight could be dangerous.”

For households and communities:

  • Secure trampolines, outdoor furniture, and loose items
  • Clear gutters, drains, and roadside channels
  • Charge phones and power banks; check torches and emergency radios
  • Prepare grab bags, especially in flood-prone areas
  • Check in on neighbours who may need assistance

For travellers and campers:

  • Avoid parking or camping near rivers, beaches, or under trees
  • Choose safe, sheltered locations before nightfall
  • Postpone travel across alpine routes if possible

Check MetService and NZTA websites for the latest warnings and road updates

Brown emphasised the close coordination taking place behind the scenes:

“Our emergency coordination team is linked in with local councils, contractors, lifelines, and national partners. We’re reviewing forecasts, monitoring risk areas, and making sure that if something escalates, we’re ready to act.”

“Our communities are used to these kinds of weather events, but that doesn’t mean we take them lightly. Preparedness saves lives and reduces damage, every action counts.”

Stay informed

Please follow updates and official advice. Conditions may change rapidly, and updates will be issued as new information comes to hand.

In an emergency, always call 111. For advice or assistance, residents can contact the Emergency Management duty officer at 03 769 9232 available 24/7.

-ENDS-

Media contact:
Claire Brown
Manager West Coast Emergency Management 
Phone: 027 836 3975  
Email: claire.brown@wcrc.govt.nz