Flood Forecasting and Warning Program

Information about the Flood Forecasting and Warning Program, which prepares provincial and local authorities in the event of a flood.

Current flood information

Flood information updated as of: October 22, 2016 - 9:00 am

Ontario flood map

Updated - Flood Watch for Southeastern Ontario Issued by the Surface Water Monitoring Centre of the Ministry of Natural Resources and Forestry Friday, October 21th, 2016 at 10:00 am

Locally issued flood messages

Issued by MNRF Districts and Conservation Authorities

MNRF Districts


    Conservation Authorities

    • South Nation - Watershed Conditions Statement – Water Safety - October 20, 2016

    River Regulatory Agencies


    Provincial Message

    Issued to Local Authorities by the Surface Water Monitoring Centre


    MNRF Districts

    Bancroft, Kemptville, Pembroke, Peterborough

    Conservation Authorities

    Cataraqui Region, Crowe Valley, Ganaraska Region, Lower Trent, Mississippi Valley, Otonabee, Quinte, Raisin Region, Rideau Valley, South Nation

    Weather Situation

    An intense low continues to impact southeastern Ontario. This system will bring significant precipitation to southeastern Ontario into the weekend.

    Today, (Friday) will see continued precipitation for the area east of Trenton to the Quebec border in the 30 to 45mm range. Additional precipitation in the 15 to 30mm range is forecast for Saturday. Higher amounts are possible should thunderstorms materialize.


    Some water levels and flows have responded to precipitation received yesterday, but remain below the flood threshold. The highest precipitation amounts are forecast from Trenton eastward along the St Lawrence River into the Cornwall area.

    Over the five day forecast period, the area covered under this message could receive 60 to 120mm of precipitation. Precipitation in this range is likely to produce conditions favourable to localized flooding.

    A close watch on water levels and flows and local weather conditions is recommended.

    Flood Message Definitions

    Provincial flood messages

    There are 2 types of provincial flood messages:

    • the Provincial Flood Watch, which provides consistent and timely technical information about the potential for flooding
    • the Provincial Watershed Conditions Statement, which provides information on provincial watershed conditions as they relate to flood potential, and an outlook on expected spring flood conditions

    Local flood messages

    There are 3 types of local flood messages:

    • flood warning: flooding is imminent or already occurring
    • flood watch: there is the potential for flooding
    • watershed conditions statements: flood Outlook (an early notice of the potential for flooding based on heavy rain, snow melt etc.) and water safety information.

    Who to contact for flood information

    Your local Conservation Authority is responsible for local flood messaging.

    Your local municipality is responsible for on-the-ground flood response.

    If you live in a community that is not serviced by a conservation authority, any flood watches or flood warnings in your area are issued by the nearest Ministry of Natural Resources and Forestry district office.


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    Updated: August 19, 2016