The past 24 hours has brought approximately 40 millimetres (mm) of rain to the Lucknow area and 30 to 35 mm to the rest of the Nine Mile and Maitland River watersheds. This rain, combined with a rapidly melting snow pack, is resulting in fast rising levels in area streams and rivers. As a result, the Flood Watch issued by Maitland Conservation on Feb. 19th is being upgraded to a Flood Warning.
Although much of the snow pack is now depleted, an additional 25 mm of rain is in the forecast for overnight. The ground remains frozen in many areas so this rain is expected to runoff quickly. Levels in streams and rivers will continue to rise overnight and into Wednesday.
It is expected that peak river levels will be slightly below those seen in December 2008, although this will be dependent on the actual rainfall that occurs overnight. Maitland Conservation staff will be carefully monitoring conditions over the next 24 hours.
Some ice jamming is being reported in the Auburn area. It is expected that this ice will be eroded as river flows increase.
The public is reminded to stay away from all watercourses and never attempt to drive through flooded areas. Fast flows and extremely cold water temperatures will make all watercourses extremely dangerous.
This message will remain in effect until 3:00 p.m. on Wednesday, February 21, 2018. An update will be provided on Wednesday afternoon based on recorded rainfall amounts.
- End of Message -
Jayne Thompson Communications Coordinator
Flood Duty Officer:
Steve Jackson, Flood and Erosion Safety Services Coordinator
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.