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Flood Warning & Watershed Conditions Update

The Ministry of Natural Resources (MNRF) and the North Bay-Mattawa Conservation Authority (NBMCA) have issued a Flood Warning for portions of the region, along with a Watershed Conditions Statement – Flood Outlook for the broader watershed.

Areas Affected

  • Flood Warning in effect for:

    • Lake Nipissing shoreline
    • La Vase River (downstream of Lakeshore Drive)
    • Parks Creek
    • Lake Temagami area
  • Flood Outlook in effect for:

    • The remainder of the North Bay-Mattawa watershed

Current Conditions

  • Recent rainfall (35–64 mm) and ongoing spring runoff have caused high water levels and flows across the region.
  • Lake Nipissing water levels are above normal “non-damage” levels, and some areas are already experiencing flooding.
  • Ground conditions are saturated, limiting the ability to absorb additional rainfall.
  • Many low-lying areas, wetlands, and shoreline properties are inundated or at risk.

While widespread flooding is not expected, localized flooding and ponding remain likely, especially in flood-prone areas.

Weather Outlook

  • Daytime temperatures are expected between 10–18°C, with overnight lows near freezing.
  • Additional rainfall of 1–10 mm, with possible thunderstorms bringing higher amounts, may occur in the coming days.
  • Water levels will remain sensitive and may rise quickly with further precipitation.

Safety Information

Residents are urged to take precautions:

  • Stay away from fast-moving water, shorelines, and unstable banks
  • Keep children and pets away from rivers, lakes, and flooded areas
  • Exercise caution when boating or using watercraft; floating debris and strong currents pose hazards
  • Avoid flooded areas and do not drive through standing water
  • Monitor properties in low-lying or flood-prone areas closely
  • Be prepared for possible impacts to docks, boathouses, and shoreline infrastructure

What Residents Should Do

  • Stay informed by monitoring local weather forecasts and alerts

  • Watch for updates from:

    • Municipality of Callander
    • MNRF Surface Water Monitoring Centre
    • North Bay-Mattawa Conservation Authority
  • Take action if necessary to protect your property and ensure personal safety

Important Notes

  • A Flood Warning means flooding is already occurring or imminent and action should be taken.
  • A Flood Outlook indicates potential for flooding based on current and forecasted conditions.

Updates will be provided as conditions change. Residents are encouraged to remain vigilant until this notice is lifted.

 

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