Flood Potential: High
Ice Jam Potential: Moderate
Issued to: local municipalities and school boards, local conservation authorities, emergency response agencies, health unit, media, NVCA board and staff
Date March 15, 2025 (4:10 PM) – Extended March 20, 2025
The Nottawasaga Valley Conservation Authority advises that a Flood watch Statement is in effect.
Weather Conditions
Unsettled weather conditions are expected to continue in the northeast and southern regions extending until Saturday, as a series of unstable low-pressure systems and associated warm fronts move across the northeast region on Thursday. These systems will bring periods of rain and snow to the Northeast Region. Precipitation amounts could range from 10 to 15 mm on Thursday for both the northeast and southern regions.. Daytime high temperatures will range between 5 to 15 degrees Celsius in the south and 0 to 10 degrees Celsius in the northeast until Saturday. Nighttime temperatures will remain above zero for the next two days in the south, gradually returning to sub-zero levels as the week progresses.
Due to frozen ground conditions, rain and runoff absorption will be limited, increasing the risk of localized flooding in low-lying areas and ponding on roadways. Elevated water levels from rainfall and runoff will also make local streams and rivers hazardous, particularly near culverts, bridges, and dams. The public is urged to exercise caution and avoid all watercourses, especially for the safety of children and pets.
NVCA will continue to closely monitor weather conditions, ice formation, and water levels within the watershed. The Watershed Conditions Statement for Flood Watch will remain in effect until the end of Day Friday, March 21, 2025, or until further notice.
Issues
Water levels are currently elevated as a result of heavy rainfall, warm temperatures, and snow melt. A significant amount of rain is forecast to continue today and into Sunday. Water may overflow banks and cause flooding in some areas. Widespread flooding is not anticipated at this time, but low-lying and flood-vulnerable areas may be impacted.
For additional information, please call 705-424-1479 or check our website at: www.nvca.on.ca
William Flavelle
Flood Duty Officer
A Flood Watch is a notice that the potential for flooding in the near future exists in specific watercourses and municipalities. Flood Watches may be issued when stream conditions and weather are expected to produce flooding.