Heavy Rain and Flood Warnings for Greater Niagara Region and much of Southern Ontario

Posted May 4th, 2017 on Niagara At Large

When the rain comes with flood warnings – again and again and again

Joint Statement on Heavy Rainfall, Potential for Flooding

From Bill Mauro, Minister of Municipal Affairs, and Marie-France Lalonde, Minister of Community Safety and Correctional Services

“As communities across the province prepare for heavy rainfall and potential flooding over the next 24 hours, with some reports of flooding having started already, our government is working hard to prepare for any situation, and standing by ready to help.

The Ministry of Municipal Affairs has already reached out to at-risk communities to provide information about provincial assistance programs and to establish lines of communication for ongoing updates on weather impacts at the local level. Emergency Management Ontario and the Ministry of Community Safety and Correctional Services The Ministry of Community Safety and Correctional Services and the Office of the Fire Marshal and Emergency Management are on high-alert and are collecting real-time weather information.

As the situation continues to develop, we will monitor it very closely and quickly offer assistance where needed.”

The following information has been circulated by the City of St. Catharines in Niagara, Ontario –

Heavy Rainfall Warning

According to Environment Canada, rain will move into southwestern Ontario early Thursday morning and last until Saturday. Total rainfall amounts may reach 30 to 50 mm.

To prepare for the storm, City crews are cleaning and clearing ditches, sewers and culverts.

If they can do so safely, residents are encouraged to assist by removing debris from ditches and culverts near their property.

For public safety and to preserve the quality of the grass, all sports fields in St. Catharines will be closed until Monday, May 8.


On Monday, St. Catharines received more than 50 mm of rain.

The Niagara Peninsula Conservation Authority has reported that the watershed is saturated, increasing the potential for flooding. Even small amounts of rainfall at this time may cause localized flooding.

Residents are asked to be careful around any open drainage ditches, inlets, trails and watercourses.

Basement flooding

With the increase in rain comes the potential for basements to flood. If you experience basement flooding, please do the following:

  • Call Citizens First at 905.688.5600
  • Contact your insurance provider

Residents can help protect themselves and their neighbours against basement flooding by following these tips:

  • Disconnect downspouts and sump pumps from the sanitary sewer system.
  • Don’t put kitchen waste, grease and oils down the sink as they can clog the sanitary sewer.
  • Seal cracks or openings in walls, floors, windows and foundations, and seal all window wells.
  • Clear eavestroughs and downspouts of leaves and other debris.
  • Ensure the grading around your home slopes away from the foundation wall. This will help water drain away from your home
  • Clear debris from roadside catchbasins and ditches. Make sure it’s safe to do so before you start.
  • Know the location of your water shut-off valves.

Please visit our basement flooding webapge or download our Basement Flooding Guide for more tips on preventing basement floods and what to do if your basement floods.

Household Emergency Kit

Keep enough supplies stocked in your home to allow you and your family to survive for at least three days (72 hours).

Update your household emergency kit twice a year when changing your clocks. Your household emergency kit should include:

Emergency Preparedness: Your personal guide  – a fill-in-the-blank plan for you and your family

  • Battery-operated or crank radio, and extra batteries to receive the latest news during an emergency. Place batteries in reverse inside to conserve energy while not in use.
  • First Aid kit
  • Bottled water and food
  • Necessary prescriptions
  • Flashlights
  • List of emergency contact numbers (e.g. family, friends, neighbours)
  • Basic tools

Some retailers and hardware stores even carry completed kits for purchase.
Please report flooding, downed trees and drainage issues to Citizens First at 905.688.5600 or citizensfirst@stcatharines.ca

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 “A politician thinks of the next election. A leader thinks of the next generation.” – Bernie Sanders



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