Ottawa

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Extreme Weather

Insight into occasional extreme weather events in Ottawa, such as ice storms, heavy snowfalls, or thunderstorms.

Sections

1. Types of Extreme Weather in Ottawa

a. Winter Weather (December to March)

  • Extreme Cold: Temperatures can drop as low as -30°C (-22°F) or lower, with wind chills making it feel even colder.
  • Snowstorms and Blizzards: Heavy snowfall is common, with annual snowfall averaging around 223 cm (88 inches). Blizzards can reduce visibility and disrupt transportation.
  • Freezing Rain and Ice Storms: These can lead to hazardous road conditions, power outages, and falling ice hazards.

b. Summer Weather (June to August)

  • Heatwaves: Temperatures can rise above 30°C (86°F), with high humidity making it feel hotter.
  • Thunderstorms: Ottawa experiences frequent summer thunderstorms, which can bring heavy rain, strong winds, hail, and occasional tornadoes.

c. Spring and Fall

  • Flooding: Spring snowmelt and heavy rains can cause flooding, particularly along the Ottawa River and other waterways.
  • Windstorms: Strong winds can occur during transitional seasons, sometimes causing property damage and power outages.

2. Preparation Tips for Extreme Weather

a. Winter Preparation

  • Clothing: Invest in high-quality winter gear, including:
    • Insulated winter coat ($150–$400)
    • Thermal base layers ($30–$100 per set)
    • Waterproof boots with good traction ($100–$250)
    • Hats, gloves, and scarves ($50–$100)
  • Home Preparation:
    • Ensure proper insulation and seal windows/doors to reduce heating costs.
    • Keep a supply of rock salt or sand for de-icing driveways and walkways.
    • Install a backup heating source, such as a portable heater or generator, in case of power outages.
  • Vehicle Preparation:
    • Install winter tires (mandatory in Quebec, recommended in Ottawa; $800–$1,200 for a set).
    • Keep an emergency kit in your car, including blankets, a flashlight, and non-perishable food.

b. Summer Preparation

  • Cooling: Ensure your home has air conditioning or fans to manage heatwaves. Portable air conditioners cost $300–$600.
  • Hydration: Always carry water and wear lightweight, breathable clothing.
  • Storm Safety: Trim trees near your home to prevent damage from falling branches during storms.

c. Flood Preparation

  • Home Protection:
    • Install sump pumps and backwater valves to prevent basement flooding.
    • Elevate valuable items in flood-prone areas of your home.
  • Emergency Kit: Include waterproof bags, flashlights, and a battery-powered radio.

3. Safety Procedures During Extreme Weather

a. Winter Safety

  • Frostbite and Hypothermia: Limit time outdoors during extreme cold. Cover exposed skin and seek shelter if you feel numbness or shivering.
  • Driving: Avoid unnecessary travel during snowstorms. If driving, reduce speed and maintain a safe distance from other vehicles.
  • Power Outages: Use flashlights instead of candles to reduce fire risk. Keep extra blankets and a supply of non-perishable food.

b. Summer Safety

  • Heatstroke: Stay indoors during peak heat hours (11 a.m.–4 p.m.), drink plenty of water, and avoid strenuous activities.
  • Thunderstorms: Stay indoors and away from windows. Avoid using electrical appliances during lightning storms.

c. Flood Safety

  • Evacuation: Follow local authorities' instructions and evacuate if advised. Do not attempt to drive through flooded roads.
  • Electrical Safety: Turn off power to areas of your home that are at risk of flooding.

4. Associated Costs

  • Winter Gear: $300–$800 per person for high-quality clothing and boots.
  • Home Heating: Monthly heating costs can range from $100–$300, depending on the size of your home and insulation quality.
  • Vehicle Winterization: $800–$1,200 for winter tires, plus $50–$100 for an emergency car kit.
  • Flood Protection: Sump pumps cost $200–$500, and backwater valves cost $200–$1,000 (installation extra).

5. Local Considerations

a. Transportation

  • Winter: Ottawa’s public transit system (OC Transpo) operates during snowstorms, but delays are common. Check real-time updates on their website or app.
  • Snow Removal: The city has an efficient snow-clearing system, but residential streets may take longer to clear. Be prepared for parking restrictions during snow removal operations.
  • Flooding: Some roads and pathways may be closed during spring floods. Check the City of Ottawa’s website for updates.

b. Community Services

  • Emergency Shelters: The city provides warming centers during extreme cold and cooling centers during heatwaves. Locations are announced on the City of Ottawa’s website and social media.
  • Assistance Programs: Low-income residents can apply for financial assistance for heating costs through programs like the Ontario Energy Board’s Low-Income Energy Assistance Program (LEAP).
  • Emergency Alerts: Sign up for local emergency alerts through Alert Ready (Canada’s emergency alert system) to receive notifications about severe weather.

c. Cultural Considerations

  • Community Spirit: Ottawa residents are generally helpful during extreme weather events. Neighbors often assist each other with snow clearing or other needs.
  • Winter Activities: Despite the cold, Ottawa embraces winter with events like Winterlude and outdoor activities such as skating on the Rideau Canal. Dress warmly and enjoy these cultural experiences.

6. Additional Resources

  • City of Ottawa Website: ottawa.ca – For updates on weather, road closures, and community services.
  • Environment Canada: weather.gc.ca – For accurate weather forecasts and alerts.
  • Hydro Ottawa: hydroottawa.com – For power outage updates and tips.
  • OC Transpo: octranspo.com – For public transit updates during extreme weather.

By understanding Ottawa’s extreme weather patterns and taking proactive steps to prepare, you can navigate the city safely and comfortably year-round. Stay informed, plan ahead, and take advantage of the community resources available to you!