Flood Status

Conservation Halton Issues a Watershed Conditions Statement - Flood Outlook

April 18, 2019 @ 12:00 PM

Conservation Halton advises that the Ministry of Natural Resources & Forestry’s Surface Water Monitoring Centre is forecasting an incoming weather system that will bring periods of rain through our jurisdiction over the next several days. Rainfall amounts of approximately 30 to 60 mm are anticipated over the course of Thursday, Friday, and into Saturday. Thunderstorms associated with this event are possible and may produce an additional 5 to 10 mm of rain in isolated areas.

Local streams have receded from the previous rainfall. However, the ground remains saturated in areas and combined with the forecasted precipitation will result in increased water levels and flows within our rivers and streams over the next several days. The combination of slippery and unstable banks and cold water temperatures will create hazardous conditions close to any river, stream or other water bodies.

Widespread flooding is not anticipated. Our reservoirs are still in range of our seasonal holding levels and have storage capacity available. However, fast flowing water and flooding of low lying areas and natural floodplains may be expected. Municipalities, emergency services and individual landowners in flood-prone areas should be on alert.

Conservation Halton is asking all residents and children to keep a safe distance from all watercourses and structures such as bridges, culverts and dams. Elevated water levels, fast flowing water, and slippery conditions along stream banks continue to make these locations extremely dangerous. Please alert children in your care of these imminent dangers.

Conservation Halton will continue to monitor stream flow and weather conditions and will issue further messages as necessary. This Flood Outlook Statement will be in effect through Tuesday April 23rd, 2019.

For further information or questions regarding this message contact:

Glenn Farmer, Flood Duty Officer

Engineering

905-336-1158 x2290

floodadmin@hrca.on.ca

Karlee May

Digital Media Coordinator

905-336-1158 x2264

kmay@hrca.on.ca

Note: A Watershed Conditions Statement – Flood Outlook is issued as an early notice of the potential for flooding based on weather forecast of heavy rain, snow melt, high wind or other conditions that could lead to high runoff, ice jams, shoreline flooding or erosion.

 

Conservation Halton Flood Terminology

The current terminology was adopted by Conservation Halton, other Conservation Authorities across Ontario and the Ontario Ministry of Natural Resources and Forestry (OMNRF) in February, 2012. The change is to ensure flood messages are consistent and in line with severe weather terminology used by other agencies such as Environment Canada and the Weather Network. The terms were developed by a committee of representatives of Conservation Authorities, Conservation Ontario, the Ministry of Natural Resources and Forestry, Environment Canada, and other agencies
The following is the flood and water safety message terminology used by Conservation Halton:

Normal:
Conditions are within normal limits. No flooding is expected.

 

Watershed Conditions Statement:
A general notice of weather conditions that could pose a risk to personal safety or which have the potential to lead to flooding. There are two variations of these:

Watershed Conditions Statement - Water Safety:
High flows, unsafe banks, melting ice, or other factors could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, and others. Flooding is not expected
Watershed Conditions Statement - Flood Outlook:
Early notice of the potential for flooding based on weather forecasts calling for heavy rain, snow melt, high wind, or other conditions that could lead to high runoff and cause ice jams, lakeshore flooding, or erosion.
Flood Watch:
Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services, and individual landowners in flood-prone areas should prepare;
Flood Warning:
Flooding is imminent or already occurring in specific watercourses or municipalities. Municipalities and individuals should take action to deal with flood conditions. This may include road closures and evacuations.