This year, the Department of Health has published a Heatwave Plan to let people know what they can do and what to watch out for.
Why can heat be dangerous?Excessive heat can:
- Increase heart problems
- Raise breathing problems
- Cause heatstroke
What makes a heatwave?There are four different heatwave levels.
- Level 1 - Green: This is the 'normal' state, where there is no more than a 50% risk of heatwave. People should just be aware of the risks of heat and the need to keep cool.
- Level 2 - Amber: Alert and readiness - there's now a 60% chance that 'threshold' temperatures will be reached for 2 or more days. 'Threshold' temperatures vary from region to region around the country, but are around 30°C during the day and 15°C at night.
- Level 3 - Red: Heatwave action - this stage is reached when threshold temperatures have been reached in at least one region around the country.
- Level 4 - Red Emergency: When the Heatwave Plan hits 4, the situation is extremely serious - this is when the heatwave is so severe that it's likely to cause power or water shortages.
Practical tips for a heatwave
- Check up on friends, relatives and neighbours who may be less able to look after themselves
- Shut and shade windows when it's hotter outside and open them for ventilation when it's cooler outside
- If you're vulnerable to the effects of heat, avoid going out between 11am-3pm
- Drink cold drinks like water or fruit juice regularly and avoid tea, coffee and alcohol
- Stay tuned to the weather forecast and plan ahead with supplies
- Keep plenty of water to hand and stay in the shade where possible
- Identify the coolest room in the house
What homeowners can doHomeowners can take other practical steps to stay cool during the summer, including:
- Shading south and west-facing windows
- Painting buildings and surrounding walls white to reflect heat
- Planting small trees and shrubs around buildings
- Replacing metal blinds with curtains with white linings to reflect heat outwards where possible.
How to recognise heat exhaustion or heatstroke in people and what to do if someone you know is suffering.
What is heat exhaustion and heatstroke?
Heat Exhaustion symptoms
- Nausea and vomiting
- Muscle weakness or cramps
- Pale skin
- High temperature
What to do
- Move somewhere cool
- Drink plenty of water or fruit juice
- Take a lukewarm shower or sponge yourself with cold water
- Intense thirst
- Hot, red and dry skin
- Sudden rise in temperature
- Aggression, confusion, convulsions or loss of consciousness
What to do
- Call 999
- Move the person somewhere cooler
- Loosen clothes and sprinkle them with cool water, or use a damp sheet
- If conscious, give them water
- Do not give them paracetamol or aspirin