Weather hazards

NIWA plays a pivotal role in weather hazards research, providing critical information and tools for assessing, monitoring, and managing weather-related risks and impacts.

  • Climate and weather

    Information about climate and weather and links to climate-related websites.
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    Flooding - how does it happen?

    Education Resource
    Understanding what happens above and below ground during a flooding event, and how it is different from normal rainfall conditions
  • Average soil moisture deficit onset and termination maps

    Maps of the average first and last dates of soil moisture deficit are shown here.
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    Hotspot Watch Updates

    This weekly update helps assess likelihood of extremely dry weather preceding a drought. Regions experiencing severely to extremely drier than normal soil conditions are deemed “hotspots”
  • New Zealand Drought Monitor

    Service
    The New Zealand Drought Monitor is a system for keeping track of drought conditions across New Zealand based on a standardised climate index.
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    Dog Island

    Dog Island levels
  • Edgecumbe flood damage

  • Scientists go door-to-door in Edgecumbe collecting flood information

    Media release
    Scientists will be knocking on doors in Edgecumbe next week seeking to survey the damage done to buildings from recent flooding caused when a stopbank on the Rangitaiki River breached.
  • NIWA launches New Zealand Drought Index - a one-stop drought monitor

    Media release
    A new tool to monitor drought conditions across New Zealand has been launched today by NIWA.
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    NIWA launches high resolution flood forecasting

    Feature story
    There was a common factor in the floods that hit swathes of New Zealand midway through this year – they were all forecastable.
  • Building resilience to extreme weather events in the Pacific

    Feature story
    Cyclone Pam’s furious flight path across the South Pacific in March this year illustrated the danger natural hazards pose to life, livelihoods and infrastructural development in the region.
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    Is extreme weather the new normal?

    News article
    New Zealanders have just experienced one of the driest summers on record – great for beachgoers and cricket lovers, but far from ideal for farmers and orchardists relying on rain to maintain productivity.