To: All Municipalities in the MVCA’s area of jurisdiction, including the Nine Mile River watershed, and Media
Watershed Conditions Statement – Water Safety
Issued at 6:30am, January 12, 2017
Recent warm temperatures combined with overnight rainfall of approx. 20 mm, will cause the levels of watercourses in the Maitland and Nine Mile River watersheds to rise and remain elevated for several days. While significant flooding is not expected at this time, levels in streams and rivers may reach or exceed bankfull conditions resulting in some minor flooding in low-lying areas.
As of Wednesday afternoon the water content in the snow pack measured between 40 and 60 mm. Climbing temperatures and rain on Wednesday evening resulted in the release of approximately 25 mm of water from the snow pack. Total runoff from rain and snow melt has been approximately 45 mm.
While significant flooding is not expected at this time, municipal staff should monitor local problem areas and be prepared for closures of low-lying roads.
We remind people that slippery and unstable streambanks and cold water temperatures will create hazardous conditions around all watercourses.
Temperatures are forecasted to drop back below freezing today. Flows may peak quickly and begin to recede by Friday but will remain elevated throughout the weekend. The Maitland Valley Conservation Authority is monitoring watershed conditions and will provide an update if warranted.
This message is in effect until 4:00 p.m. on Saturday January 14, 2017.
Confirmation of receipt of this message: not required
– End of Message –
Jeff Winzenried, Water Resources Technician
Types of Flood Messages:
Watershed Conditions Statement – Water Safety – General watershed conditions are being assessed for high runoff potential that could lead to flooding, and to remind the public of general river safety issues.
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, 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.