Flood Forecasting and Warning Program
Information about the Flood Forecasting and Warning Program, which prepares provincial and local authorities in the event of a flood.
Current flood information
Flood information updated as of: April 23, 2017 - 10:00 am
Ontario flood map
Provincial Watershed Conditions Statement for Ontario Issued by the Surface Water Monitoring Centre of the Ministry of Natural Resources and Forestry Friday April 21st, 2017 at 5:00 PM
Locally issued flood messages
Issued by MNRF Districts and Conservation Authorities
- Bancroft - Bancroft District - Flood Outlook; York and Madawaska River - Flood Warning; Gull River - Flood Watch - April 18, 2017
- Kemptville - Flood Warning - April 21, 2017 4:30 pm
- Midhurst - Watershed Conditions Statement – Water Safety - April 6, 2017
- Parry Sound - Flood Warning -North Branch Muskoka River Sub-Watershed; Flood Watch - District Municipality of Muskoka, the Territorial District of Parry Sound and a portion of the County of Haliburton - April 19, 2017
- Pembroke - Flood Warning - April 21, 2017
- Sault Ste Marie - Flood Warning - April 13, 2017 2:00 pm
- Wawa - Watershed Conditions Statement – Water Safety - April 18, 2017
- Cataraqui Region - Flood Watch - Update - April 21, 2017 2:30 pm
- Hamilton - Watershed Conditions Statement – Water Safety - April 22, 2017 4:20 pm
- Lake Simcoe Region - Watershed Conditions Statement – Flood Outlook - April 20, 2017
- Long Point Region - Watershed Conditions Statement – Water Safety - April 21, 2017 11:00 am
- Lower Trent - Flood Watch - Update - April 21, 2017 1:30 pm
- Mattagami Region - Watershed Conditions Statement – Water Safety - April 21, 2017
- Mississippi Valley - Flood Watch to Include Ottawa River - April 21, 2017 4:00 pm
- Niagara Peninsula - Flood Watch - April 20, 2017
- North Bay Mattawa - Watershed Conditions Statement – Water Safety - April 20, 2017
- Otonabee - Flood Warning - April 20, 2017 11:30 am
- Rideau Valley - Flood Watch - April 21, 2017 3:50 pm
- South Nation - Flood Watch: Ottawa River - April 21, 2017
- Upper Thames River - Watershed Conditions Statement – Water Safety - April 21, 2017 10:00 am
River Regulatory Agencies
- Ottawa River Rising Water Levels - April 18, 2017
Issued to Local Authorities by the Surface Water Monitoring Centre
Algonquin Park, Aurora, Aylmer, Bancroft, Chapleau, Cochrane, Dryden, Fort Frances, Guelph, Hearst, Kemptville, Kenora, Kirkland Lake, Midhurst, Nipigon, North Bay, Parry Sound, Pembroke, Peterborough, Red Lake, Sault Ste Marie, Sioux Lookout, Sudbury, Thunder Bay, Timmins, Wawa
Ausable Bayfield, Cataraqui Region, Catfish Creek, Central Lake Ontario, Crowe Valley, Essex Region, Ganaraska Region, Grand River, Grey Sauble, Hamilton, Kawartha, Kettle Creek, Lake Simcoe Region, Lakehead Region, Long Point Region, Lower Thames Valley, Lower Trent, Maitland Valley, Mattagami Region, Mississippi Valley, Niagara Peninsula, Nickel District, North Bay Mattawa, Nottawasaga Valley, Otonabee, Quinte, Raisin Region, Rideau Valley, Saugeen, Sault Ste Marie Region, South Nation, St. Clair Region, Upper Thames River
After heavy rains fell on the southwest part of the province there is now only a scattered risk of precipitation and cloud cover. A ridge of high pressure will extend into southern Ontario bringing drier conditions across south and central Ontario Saturday (April 22) and over the weekend.
A weak cold front will move through northwest Ontario Saturday bringing minimal scattered precipitation across the area. Northern parts of the province should see clear skies, and cold temperatures Sunday. This cold front will bring temperatures of 0 to -10 degrees during the day and -10 to -15 overnight across the North.
Water levels and flows across much of central and eastern Ontario remain elevated from past precipitation and snow melt and are currently high, but stable or falling, at most gauging stations.
Mid-April snow surveys indicate that up to 100mm to 150mm of water equivalent still remain in the snow pack across parts of Algonquin Park, northeastern Ontario and the northern portions of northwestern Ontario. Cooler temperatures may stabilize or reduce existing high flows over the next few days.
Snowpack across central and northeastern Ontario will continue to melt but at a slower rate due to forecasted cooler temperatures.
Ice break-up along the Moose and Albany Rivers is in progress but may be slowed down due to the colder temperatures forecast in the North.
Continued risk of flooding exists in areas already under high-water advisories.
A close watch on water levels and flows and local weather conditions and forecasts is recommended.
Flood Message Definitions
Provincial flood messages
There are 2 types of provincial flood messages:
- the Provincial Flood Watch, which provides consistent and timely technical information about the potential for flooding
- the Provincial Watershed Conditions Statement, which provides information on provincial watershed conditions as they relate to flood potential, and an outlook on expected spring flood conditions
Local flood messages
There are 3 types of local flood messages:
- flood warning: flooding is imminent or already occurring
- flood watch: there is the potential for flooding
- watershed conditions statements: flood Outlook (an early notice of the potential for flooding based on heavy rain, snow melt etc.) and water safety information.
Who to contact for flood information
Your local Conservation Authority is responsible for local flood messaging.
Your local municipality is responsible for on-the-ground flood response.
If you live in a community that is not serviced by a conservation authority, any flood watches or flood warnings in your area are issued by the nearest Ministry of Natural Resources and Forestry district office.