GRAND RIVER CONSERVATION AUTHORITY
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Flood Warning Message #5 – Flood Warning (Update)
Ice jams causing flooding in southern Grand River watershed
The Grand River Conservation Authority is issuing the following Flood Warning message. This message is an update to Flood Message #4 issued yesterday. Flood Message #4 remains in effect.
Flood coordinators from Haldimand County reported flooding has started to occur on Saturday evening in the communities of Cayuga and Dunnville. An ice jam has formed downstream of Cayuga between Cayuga and Dunnville. Water levels are rising in this area and flooding is occurring in Cayuga as well as the Lions Park area of Dunnville. Flooding has also been reported in the Grand Sports Road area between York and Cayuga.
A Flood Warning has been issued for:
- Grand River (Cayuga and Dunnville): Flood coordinators are advised to monitor conditions and take necessary action in the affected areas of Grand Sports Road, Cayuga and Dunnville. Residents in the floodplain in these areas are advised to take appropriate precautions and follow the directions of local municipal first responders.
Flows through Dunnville are forecast to peak shortly after midnight on Sunday morning. Flows through York and Cayuga will peak late Saturday evening.
While flows are peaking through the southern Grand River, Ice jams can form with little warning and cause a rapid rise in water levels. Residents in affected areas should be aware of rapidly changing conditions and take appropriate precautions.
This message will remain in effect until 4 p.m. on Monday, March 18, 2019. Updated flood messages will be issued as conditions develop and better forecast information becomes available.
More information
- For more information on flows, weather and reservoir conditions see the River Data section of the GRCA website.
- Safety information for parents and children is available in the GRCA’s River Safety Rules booklet.
- More information on the flood warning system is available on the GRCA website.
- Receive GRCA flood messages by e-mail by subscribing through the GRCA website.
- Follow GRCA flood messages on Twitter at grca_flood_msg.
- More information about how the GRCA manages floods is available in the Flooding section of the website.
