Extreme heat and heatwaves

Overview

Extreme heat days are becoming more frequent and intense. Climate change means that Whittlesea is becoming hotter and drier, with prolonged periods of above average temperatures.

We need to look after each other during heatwaves as they can be extremely dangerous. Extreme heat kills more people than any other natural disaster. It is important to prepare early and keep yourself cool.

Below is a map of cool places at the City of Whittlesea.

cool places map_v2.jpg

Download the cool places map(PDF, 5MB)

Extreme heat, heatwaves and heat health warnings

Heatwaves

A heatwave is classified when there are three days of unusually high minimum and maximum temperatures for a location. For more information, visit the Department of Health Heat health warning page.

Heatwave warnings

The Bureau of Meteorology (BOM) issues heatwave warnings for severe or extreme heatwave conditions. These let you know when a heatwave is coming, how long it will last, and which areas will be affected. Find more information at Bureau of Meteorology - Heatwave Service for Australia.

Heat health warnings

Once the Bureau of Meteorology issues a severe or extreme heatwave warning, the Department of Health will issue a heat health warning. A heat health warning notifies the community of the risk and likely impact on people’s health. Find more information at the Department of Health - Heat health warning page.

Tips to stay cool in the heat

Stay out of the heat

Try to plan stay out of the heat for the hottest part of the day (usually in the mid-late afternoon). Spend as much time as you can in cool, shady or air conditioned places. If you have to go out, seek shade and wear a hat and light, loose-fitting clothes, preferably cotton. If you will be outside for some time, take plenty of water with you. 

Drink regularly

Drink lots of water even if you do not feel thirsty. If your doctor normally limits your fluids, consult with them. Try to avoid alcohol, caffeine and sugary drinks – they make dehydration worse. Try to eat more cold food, particularly salads and fruit, which contain water.

Keep yourself cool

To help keep you feel cool, you could try using a damp cloth, towel or scarf on the back of your neck; spraying or splashing your face and the back of your neck often with cold water; putting your feet in cool water; and taking cool (not cold) showers or baths. Wear light and loose-fitting clothing.

Cool your house

To stay cool at home, use fans and air conditioning if available, and spend time in the coolest room, including for sleep. Keep windows closed when it's cooler inside and open them when the indoor temperature rises above the outside. Close curtains and blinds during the hottest parts of the day to block heat, and turn off unnecessary lights and electrical devices to reduce warmth. Indoor plants and outdoor trees can also help cool your home by providing shade and promoting evaporation.

Keep up-to-date with warnings

Check weather forecasts so you know when a heatwave is coming, and read, watch or listen to news reports to stay up to date with information during heatwaves. Check Heatwave Service for Australia and Incidents and Warnings - VicEmergency for latest weather warnings. 

 

Check in with others

Check in often with friends, neighbours or family members that are more at risk to suffer heat stress. Never leave children in cars, at hot cars can kill.

Look after your pets

Make sure your pets have access to shaded, cool areas and lots of fresh, cool water. Don’t walk dogs during the hottest part of the day and never leave pets in cars.

Heat stress and heat-related illness

As temperatures rise, so does the risk of contracting a heat related illness. During hot weather, the body works to prevent overheating by sweating and re-directing blood flow to the skin. A heat related illness can happen when these changes in the body, combined with a person’s actions to stay cool, aren’t enough to avoid overheating or dehydration. In this case, serious complications can occur when organ systems begin to malfunction.  

Dehydration

Dehydration happens when the body loses more fluids than it takes in, often due to excessive sweating. Symptoms include thirst, dry mouth, dark urine, dizziness, headaches, and difficulty thinking clearly.

To prevent dehydration, drink plenty of fluids, take breaks from physical activity, and stay in a cool place. If symptoms persist, seek medical advice.

Heat exhaustion

Heat exhaustion is a serious condition that can lead to heatstroke if untreated. Signs include heavy sweating, pale skin, rapid heartbeat, muscle cramps, dizziness, nausea, and fainting. If someone shows these symptoms, move them to a cool place, remove excess clothing, wet their skin, and offer small sips of water.

Seek medical help immediately by calling Nurse on call (1300 60 6024) or visiting the Victorian Virtual Emergency Department.

Heatstroke (medical emergency)

Heatstroke occurs when body temperature rises above 40.5°C, causing organs to shut down. Symptoms include confusion, dry skin (no sweating), seizures, and unconsciousness. If you suspect heatstroke, call Triple Zero (000) immediately.

Move the person to a cool place, remove clothing, wet their skin, and apply ice packs to the neck, groin, and armpits. If they are conscious, encourage small sips of water. If they become unconscious, place them on their side and check their airway. Perform CPR if necessary. Act fast, heatstroke can be fatal.