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Bay of Plenty region

Waimapu at McCarrolls

The Waimapu at McCarrolls site was  installed in June 1990 as part of the Natural Environmental Regional Monitoring network.

Summer river flows at this site can get as low as 0.6 m3/s, but average river flows are closer to 2.2 m3/s. A high flood flow of 159 m3/s occurred on 11 June 2014.

The site records a mean annual rainfall of approximately 1600 mm and daily falls of up to 190mm.

Flow Data
Scientific data for this flow site
  • Live Flow Data
    Latest sample:
    Percentage of time flow exceeded
    High flowLess than 5%
    Elevated flow5% to 29%
    Normal flow30% to 69%
    Reduced flow70% to 94%
    Low flow95% to 100%
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    • Last 24 hours
    • Last 7 days
    • Last 30 days

    Key figures

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    Other notable measurements

    Floods Month/Year Flow
    Maximum recorded flow May 2001 139.473
Rainfall Data
Scientific data for this rainfall site
  • Rainfall so far this month
    This month:
    Rain last month
    Last month:
    Percentage of monthly median rainfall
    Very wetOver 200%
    Moderately wet>110% to 200%
    Near normal>90% to 110%
    Moderately dry>50% to 90%
    Very dry0% to 50%
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    • Last 7 days
    • Last 30 days
    • Last 12 months

    Key figures

    {{stat.Name}} {{stat.Value}} {{stat.Units}}

    Notable measurements

    Wettest Month/Year Rainfall
    Largest recorded annual rainfall December 2011 2198
    Driest Month/Year Rainfall
    Lowest recorded annual rainfall December 2006 1021.8