Extreme Heat Survival

Preparation Steps

European heatwaves are becoming more frequent and more deadly. The 2003 European heatwave killed over 70,000 people. Preparation before extreme heat arrives is critical.

• Identify the coolest room in your home. Typically north-facing rooms on lower floors. Prepare this as your primary living space during a heatwave.
• Install reflective window film or external shutters. These block up to 80% of solar heat gain before it enters the building.
• Stock electrolyte drinks. Water alone is not sufficient during extreme sweating — oral rehydration salts or sports drinks replace lost sodium and potassium.
• Know the location of air-conditioned public spaces. Libraries, shopping centers, municipal cooling centers, and cinemas can be life-saving refuges during extreme heat.
• Prepare a battery-powered fan. Grid power can fail during peak demand in extreme heat.
• Identify vulnerable people near you. Elderly individuals, people with heart or kidney disease, young children, and those without air conditioning are at highest risk.
• Know the emergency number. In Romania, call 112. Heat stroke is a medical emergency with minutes-long windows for intervention.

Immediate Actions

When a heatwave alert is issued (temperatures above 35°C with high humidity):

1. Move to the coolest available space. Stay indoors between 11:00 and 17:00 when temperatures peak.
2. Drink water regularly — at least 2–3 liters per day, more if active. Do not wait until you feel thirsty; thirst is a late sign of dehydration.
3. Apply cool wet cloths to pulse points — wrists, neck, armpits, and groin. This rapidly reduces core body temperature.
4. Close sun-facing curtains and blinds from early morning. Keep windows closed while outdoor temperature exceeds indoor temperature, then open at night to ventilate.
5. Recognize and respond to heat stroke. Heat stroke symptoms: hot dry skin, no sweating, body temperature above 40°C, confusion, loss of consciousness. This is a life-threatening emergency — call 112 immediately, move the person to shade, and cool them rapidly with any available means.
6. Reduce physical activity. Avoid exercise or strenuous work during the hottest hours. If you must be active, do so before 9:00 or after 18:00.

What to Avoid

• Do not rely on fans alone above 35°C. At temperatures above the body's 37°C, fans circulate hot air and can increase heat stress rather than reduce it.
• Do not drink alcohol during a heatwave — alcohol increases dehydration and impairs the body's ability to regulate temperature.
• Do not leave children, elderly people, or animals in parked vehicles. Interior car temperatures can reach 60°C within 20 minutes on a hot day.
• Do not dismiss fatigue or headache as minor. These are early heat exhaustion symptoms. Rest and hydrate immediately.
• Do not eat heavy, protein-rich meals. Digestion generates significant body heat. Opt for light, high-water-content foods: fruit, salad, yogurt.
• Do not take cold showers during extreme heat. Rapid cold exposure can cause shock. Use lukewarm water instead.

Supplies Needed

• Bottled water (minimum 3 liters per person per day)
• Oral rehydration salts or electrolyte powder
• Battery-powered fan (with spare batteries)
• Spray bottle filled with water for misting
• Cool wet towels or cooling towels
• Light, loose-fitting, light-colored clothing (natural fabrics: cotton or linen)
• Sunscreen (SPF 30 or higher)
• Sunglasses and wide-brimmed hat for any outdoor exposure
• Digital thermometer (to monitor body temperature)
• Reflective curtains or emergency mylar blankets for windows
• Ice packs or improvised cold packs (frozen water bottles)

Recovery Steps

After a heatwave ends:

• Rehydrate gradually. Drink water and electrolyte beverages consistently for 24 hours after intense heat exposure.
• Assess vulnerable individuals. Check on elderly neighbors and those who were alone during the heatwave. Heat-related illness can be delayed by hours.
• Ventilate your home thoroughly. Open windows at night and in the morning to purge accumulated heat from walls and furnishings.
• Seek medical evaluation if needed. Persistent fatigue, nausea, headache, or confusion after a heatwave can indicate heat-related illness requiring treatment.
• Review your preparation. Did you have enough water? Was your cooling space effective? Improve your setup before the next heat event.
• Report infrastructure concerns. Broken public water fountains, non-functioning cooling centers, or vulnerable neighbors without access to cooling should be reported to local authorities.
• Plan for the longer term. Install reflective window coverings, consider energy-efficient cooling, and plant shade trees where possible.