Nelson Tasman Civil Defence and Emergency Management
Civil Defence is about the resilience of our communities. We assist families and businesses to be ready when disaster strikes. We make plans, so we are ready to respond to emergencies, lead the response to emergency events, and coordinate recovery afterwards. Learn more about us.
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Weather Update: 31 May 2026 - 31/05/2026 9:18pm
Weather Update: 9:00 pm 31 May 2026Heavy rain expected for parts of Nelson Tasman.MetService New Zealand has updated the forecast for this evening, with an Orange Heavy Rain Warning and Yellow Heavy Rain Watch currently in place for our Region.There has been steady rain, especially in the Golden Bay area (over 200mm in the past 24 hours in the Anatoki area).The rainfall is looking to intensify into Monday. Thankfully, the chance of thunderstorms has reduced, but we do recommend people continue to take care around waterways (rivers and streams), especially if there is prolonged rainfall. Avoid any floodwaters, as they could contain hidden debris or be contaminated.With this volume of rainfall slips may occur, and driving conditions could be challenging. Please take care if you have to drive. Keep an eye on the road closures at:https://roadinfo.ramm.com/nz/roadclosuremap.html?region=nelsonHeavy Rain Warning - OrangePeriod: 30hrs from 8pm Sun, 31 May - 2am Tue, 2 JunArea: Tasman District northwest of MotuekaForecast: On top of the rain that has already fallen, expect 250 to 300 mm, but possibly more than 400 mm about the ranges. Peak rates of 20 to 30 mm/h, especially from Monday afternoon. Moderate 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.Heavy Rain Warning - OrangePeriod: 32hrs from 8pm Sun, 31 May - 4am Tue, 2 JunArea: Richmond and Bryant Ranges, including the Rai ValleyForecast: On top of what has already fallen, expect 250 to 300 mm. Peak rates of 15 to 25 mm/h, especially from Monday afternoon. 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.Heavy Rain WatchPeriod: 32hrs from 8pm Sun, 31 May - 4am Tue, 2 JunArea: Parts of Nelson and Tasman Districts not covered by warningsForecast: Periods of heavy rain, and amounts may approach warning criteria. Moderate chance of upgrading to a Warning.Useful links are:https://www.tasman.govt.nz/my-region/environment/environmental-data/rainfallhttps://www.tasman.govt.nz/my-region/environment/environmental-data/river-flow/flow-report