South Nation Conservation works with its partner municipalities along the South Nation, St. Lawrence and Ottawa Rivers to provide advanced notice of flooding and low water conditions through the provincial Flood Forecasting and Warning and Low Water Response programs.
MAPPED ROAD CLOSURES, FLOODED AREAS AND SANDBAG LOCATIONS
VIEW WATER LEVELS IN SOUTH NATION WATERSHED
Current Watershed Conditions, Flood, and Drought Messages:
April 4, 2025
South Nation Conservation
MEDIA CONTACT:
Erin Thorne, Communications Specialist, ethorne@nation.on.ca, 1-877-984-2948.
FLOOD DUTY OFFICER:
Katherine Watson, Coordinator - Early Warning Systems and Watershed Plans,
kwatson@nation.on.ca, 1-877-984-2948.
Definitions:
- Water Conditions Statement: Water Safety: indicates that high flows, melting ice or other factors could be dangerous for such users as boaters, anglers, and swimmers but flooding is not expected.
- Water Conditions Statement: Flood Outlook: gives early notice of the potential for flooding based on weather forecasts calling for heavy rain, snow melt, high winds, or other conditions.
- Flood Watch: potential for flooding exists within specific watercourses and municipalities.
- Flood Warning: flooding is imminent or occurring within specific watercourses and municipalities.
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Flood Forecasting and Warning 2025 Summary:
South Nation River Watershed |
St. Lawrence River |
Ottawa River |
March 4, 2025: Flood Outlook Statement March 10, 2025: Flood Outlook Statement March 17, 2025: Flood Watch - Update #1 March 20, 2025: Flood Watch - Update #2 |
Past Statements:
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2017 Watershed Conditions and Flood Messages
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2018 Watershed Conditions and Flood Messages
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2019 Watershed Conditions and Flood Messages
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2020 Watershed Conditions and Flood Messages
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2021 Watershed Conditions and Flood Messages
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2022 Watershed Conditions and Flood Messages
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2023 Watershed Conditions and Flood Messages
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2024 Watershed Conditions and Flood Messages