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Weather Notices & Alerts

  • Significant Weather Event ENDED - January 15 2024

    Significant Weather Event - ENDED
    January 15, 2024 at 9:00 a.m.

  • Grand River Water Safety Statement January 8 2024

    The current weather system crossing the watershed is bringing above freezing temperatures and approximately 30-40 mm of mixed snow and rain on Tuesday, January 9, resulting in increased river flows throughout the Grand River watershed.

  • Grand River Water Safety Statement July 13 2023
    The Grand River Conservation Authority is issuing the following Watershed Condition Statement – Water Safety.
    A slow-moving weather system crossed the Grand River watershed overnight Wednesday, resulting in 50-70mm of rainfall in northern and central portions of the watershed. 
  • Credit Valley Conservation - Flood Outlook Statement June 24 2023
    Credit Valley Conservation (CVC) advises that Environment Canada is predicting showers and localized significant rainfall in the amounts of 50-75mm.
    Heavy rainfall may cause pooling on roadways, flash floods and flooding in low-lying areas. Higher water levels will result in local streams and rivers becoming dangerous, especially in the vicinity of culverts, bridges, and dams. 
  • GRCA Flood Message #4 – Updated Combined Flood Warning/Flood Watch

    The strong low-pressure system that moved into the region early Friday, March 31, resulted in 30-60 mm of rain throughout the Grand River watershed. Thunderstorms overnight resulted in periods of intense rainfall. Watershed received an additional 10 to 20 mm of rain through the day on Saturday.

  • GRCA Flood Message #4 – Updated Combined Flood Warning/Flood Watch

    The Grand River Conservation Authority (GRCA) is issuing the following updated combined Flood Warning/Flood Watch message.

    The strong low-pressure system that moved into the region early Friday, March 31, resulted in 30-60 mm of rain throughout the Grand River watershed. 

  • Credit Valley Conservation - UPDATE April 1 2023

    Credit Valley Conservation (CVC) advises that the Credit River watershed received 30-35 mm of rain during Friday March 31st and overnight thunderstorms. Also, the Environment of Canada is forecasting risk of thunderstorms this afternoon.

  • Credit Valley Conservation - March 22 2023

    CVC advises that Ministry of Natural Resources and Forestry’s (MNRF) is forecasting a low-pressure weather system expecting to bring 5-10 mm of rainfall on Thursday, March 23rd . Another low-pressure weather system expecting to bring from 10 mm to 15 mm of rain and snow on Saturday, March 25th . 

  • CVC Watershed Conditions Statement March 16 2023

    1255 Old Derry Road, Mississauga, ON, L5N 6R4

    Telephone: (905) 670-1615

  • Credit Valley Conservation - February 7 2023

    February 7, 2023 - Credit Valley Conservation (CVC) advises that daytime highs will range from 2 to 8ºC over the next several days. Light rain is forecasted for today and up to 20mm is expected on Thursday.


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