Tips

Essential Cold Wave Safety Tips for 2026

June 18, 2026 · The Clime Team

Cold waves present significant health and safety risks, including hypothermia, frostbite, and carbon monoxide poisoning. Understanding how to prepare and respond can make a critical difference.

What Are Cold Waves and Why Are They Dangerous?

A cold wave is a prolonged period of excessively cold weather, often accompanied by strong winds and low temperatures. These conditions can lead to serious health issues such as hypothermia and frostbite. Hypothermia occurs when the body's core temperature drops below 95°F (35°C), leading to symptoms like shivering, confusion, and slurred speech. Frostbite involves the freezing of skin and underlying tissues, commonly affecting extremities like fingers, toes, ears, and the nose. (merckmanuals.com)

How Can You Prepare for a Cold Wave?

1. Stay Informed:

Monitor weather forecasts regularly to anticipate cold waves. The National Weather Service provides timely updates and warnings. (redcross.org)

2. Prepare Your Home:

Insulate: Ensure your home is properly insulated to retain heat.
Check Heating Systems: Have your heating system serviced to ensure it's functioning efficiently.
Emergency Kit: Assemble an emergency kit with essentials like non-perishable food, water, medications, and flashlights. (uwinnipeg.ca)

3. Prepare Your Vehicle:

Winterize: Equip your vehicle with winter tires and check antifreeze levels.
Emergency Supplies: Keep a blanket, flashlight, and non-perishable snacks in your car.

What Should You Wear During a Cold Wave?

1. Dress in Layers:

Base Layer: Wear moisture-wicking thermal underwear to keep your skin dry.
Middle Layer: Use insulating materials like wool or fleece to trap heat.
Outer Layer: Choose a windproof and waterproof jacket to protect against harsh weather. (ndtv.com)

2. Protect Extremities:

Head: Wear a hat or beanie to retain heat.
Hands: Use insulated gloves or mittens; mittens generally provide more warmth.
Feet: Invest in thermal socks and insulated boots to prevent heat loss. (case.edu)

How Can You Stay Safe During a Cold Wave?

1. Limit Outdoor Exposure:

Stay indoors as much as possible during extreme cold. If you must go outside, limit your time and take frequent breaks indoors. (health.clevelandclinic.org)

2. Stay Dry:

Wet clothing can increase heat loss. If you get wet, change into dry clothes immediately. (health.clevelandclinic.org)

3. Stay Hydrated and Nourished:

Drink warm beverages and eat nutrient-dense foods to maintain energy levels and body heat. (ndtv.com)

4. Be Aware of Carbon Monoxide Risks:

Use generators, grills, and other fuel-burning devices outside and away from windows to prevent carbon monoxide poisoning. (merckmanuals.com)

What Are the Signs of Hypothermia and Frostbite?

Hypothermia:

Early Symptoms: Shivering, confusion, slurred speech, and fatigue.
Severe Symptoms: Shivering stops, confusion increases, and loss of consciousness. (merckmanuals.com)

Frostbite:

Signs: Numbness, white or grayish-yellow skin, and hard or waxy-looking skin.
Common Areas Affected: Fingers, toes, ears, and the nose. (merckmanuals.com)

How Should You Respond to Hypothermia and Frostbite?