Welcome to TRCA’s Flood Forecasting and Warning Centre. The FFW program consists of daily operations by on-call Flood Duty Officers and also the maintenance of flood control infrastructure (including flood control dams and an extensive gauge network). Please click on the links to see highlights of the many initiatives being undertaken by the TRCA Flood Forecasting and Warning program.
Click here for more information on flooding and safetyWatershed Conditions Statement - Water Safety
Watershed Conditions Statement - Water Safety in effect until September 5, 2026 at 12:00 PM
Date:
September 3, 2026
Time:
8:52 AM
Issued To:
Municipalities, local police, emergency services, school boards, local Conservation Authorities, media, and the public.
Note: A Water Safety Watershed Conditions Statement may be issued when there are high flows, unsafe banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.
Weather Conditions:
Toronto and Region Conservation Authority (TRCA) is cancelling its FLOOD WARNING that was issued on September 2, 2026 at 6:10 PM and downgrading to a Watershed Conditions Statement – Water Safety.
TRCA advises that the weather system that brought significant rainfall to the Greater Toronto Area (GTA) has now passed. No significant rainfall is forecasted by Environment and Climate Change Canada (ECCC) for the TRCA jurisdiction today.
Issues:
Flooding is not expected in TRCA watersheds, however due to the total rainfall already received water levels in rivers will continue to be higher and flowing faster than usual for the foreseeable future.
The ground is already saturated because TRCA watersheds received rainfall amounts from 10 mm to 112.4 mm on September 2, 2026 which will limit the ability to absorb more rainfall.
Actions:
• Stay safe around water by avoiding rivers, streams, and nearby trails and by keeping children and pets away from fast moving water and slippery banks.
• Consider postponing recreational activities during this time due to higher river water levels and flows and unstable riverbanks.
• Travel with caution by allowing extra time for commuting and watch for ponding in low-lying areas and underpasses, or near storm drains.
• Stay informed by following local weather forecasts, and public alerts from Environment Canada.
• Share flood safety information by keeping neighbours informed, especially those without internet access.
• Municipalities and emergency services are encouraged to monitor water conditions and share safety information about public safety hazards such as high flows and unstable riverbanks.
This Water Safety, Watershed Conditions Statement will be in effect through September 5, 2026 12 PM. To report a flooding incident from a watercourse, please leave a message on TRCA’s floodline listed below. If you are in danger, call 911 immediately.
Flood Duty Officer
Alwish Gnanaraj
416-661-6514
Chief Flood Duty Officer
Alison MacLennan
Previous Flood Messages Issued for the Same Event:
TRCA's role during a flooding event is to monitor weather forecasts and watershed conditions, forecast for flooding conditions on river systems and the Lake Ontario shoreline, and notify municipalities and the public by issuing flood messages. Based on watershed knowledge, TRCA also provides technical advice to municipalities in support of their flood response efforts.