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: November 18, 2017 - 8:00 am

Ontario flood map



Locally issued flood messages

Issued by MNRF Districts and Conservation Authorities

MNRF Districts

None

Conservation Authorities

  • Ausable Bayfield - Watershed Conditions Statement – Flood Outlook - November 16, 2017 9:00 am
  • Central Lake Ontario - Watershed Conditions Statement – Water Safety - November 17, 2017 3:30 pm
  • Credit Valley - Watershed Conditions Statement – Flood Outlook - November 17, 2017 2:40 pm
  • Essex Region - Watershed Conditions Statement – Flood Outlook - November 17, 2017 5:00 pm
  • Hamilton Region - Flood Watch-Ontario Shoreline, Flood Outlook - Watershed Condtions - November 17, 2017 12:20 pm
  • Lake Simcoe Region - Watershed Conditions Statement – Flood Outlook - November 17, 2017 10:00 am
  • Lower Thames Valley - Flood Watch-Lake Erie Shore - November 17, 2017 12:10 pm
  • Sault Ste. Marie Region - Watershed Conditions Statement – Water Safety - November 15, 2017 11:00 am
  • Toronto and Region - Watershed Conditions Statement – Water Safety - November 17, 2017 4:00 pm

River Regulatory Agencies

None


Provincial Message

Issued to Local Authorities by the Surface Water Monitoring Centre

 

MNRF Districts

None

Conservation Authorities

None

MNRF Southern Region

Stream flow conditions across the region are within the seasonal range. Forecast precipitation should fall as rain over the next five days ranging from of 25 to 60 mm.

Strong winds associated with forecast weather systems passing through the region over the weekend have the potential to cause minor Great Lake surges and erosive wave action along the shorelines.

MNRF Northeastern Region

Stream flow conditions across the region are within the seasonal range. Forecast precipitation may be quite messy over the next five days, with a mix of mostly rain but some snow possible in the range of 10 to 30 mm/cm.

Strong winds associated with forecast weather systems passing through the region over the weekend have the potential to cause minor Great Lake surges and erosive wave action along the shorelines.

MNRF Northwestern Region

Stream flow conditions across the region are within the seasonal range. Forecast precipitation should fall as rain over the next five days ranging from of 5 to 15 cm.


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.

 

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Updated: August 19, 2016