GRCA Issues Watershed Conditions Statement

The Ganaraska Region Conservation Authority advises that the Weather Office is tracking a storm system which will move into southern Ontario this evening. The forecasted rainfall amounts are 15 mm to 25 mm. The rain is expected to arrive this evening and continue into Thursday.

There is still a snowpack in much of the watersheds with deeper amounts in the headwaters. This snowpack is very dense from absorbing rainfall from the previous events. The ground is not frozen.
With total rainfall amounts forecast to be in the range of 15 to 25 mm over the next 24 hours, water levels and flows in local streams will be on the rise. The remaining snowpack will also be melting and contributing runoff, while frozen ground conditions may be saturated resulting in additional runoff to local streams. All water bodies, including ponds, streams and many ditches will be flowing higher than normal. No flooding is anticipated at this time.

Additionally, slippery stream banks, and fast flowing, cold water will create hazardous conditions around bodies of water. As a result, local streams and rivers will become dangerous, especially in the vicinity of culverts and bridges. Children should be warned to stay away from all watercourses.

This Watershed Conditions Statement will be in effect through Thursday January 12th, 2017. Conservation Authority staff will continue to monitor watershed conditions and provide updates as necessary. Should you have any questions or wish to report flooding, please contact the following GRCA staff at 905-885-8173.

Mike Smith
Flood Operations Officer

Mark Peacock, P.Eng.
Flood Forecasting and Warning Coordinator