Home Health BC Centre for Disease Control Prepare for heat waves ahead of time

Prepare for heat waves ahead of time

Check ventilation, water supply, and who might need checking on if they live alone.

water, bottles
Stock up ahead of a heat wave with a supply of water.
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Thursday August 12, 2021 | VICTORIA, BC [8 am Pacific]

by Mary P Brooke, B.Sc., Editor | Island Social Trends


Heat can affect everyone’s health but some people are more susceptible to severe heat-related illness and death. 

Seniors and persons with chronic poor health are at greater risk and may not perceive that they are getting too hot. People with mobility challenges may also need extra help to take steps to keep cool. 

Weather forecasts give you the heads up:

Weather forecasts for large events like heat waves are fairly reliable nowadays. You can plan ahead to be ready when the heat hits.

Environment Canada’s heat warning issued a few days ago defines the heat threat as resulting from a “significant heat wave” from Wednesday August 11 through to Sunday, easing up by Sunday afternoon August 15.

environment canada, weather, victoria
Weather forecast for August 12 to 16, 2021 for Greater Victoria on South Vancouver Island.

The Wednesday to Sunday period — with a peak on Thursday and Friday — includes daytime highs ranging from 29°C to now 37°C (previously 35°C) combined with overnight lows of 16°C to 19°C. Humidex values during this period will reach the mid to high 30s.

jdf, emergency

Tips for heat-wave planning:

The BC Centre for Disease Control offers these guidelines for preparing ahead of time, even if you have just two to three days in advance.

These tips outline what you can do for yourself in preparation at home (such as water supply, ventilation and finding the coolest place to sleep).

As well, watch for any further government advisories.

window, breeze
Determine ahead of time which windows will allow for a breeze into your home during a heat wave.
  • Pay attention to the media, Environment Canada and your health authority for warnings of incoming heat.  Use the British Columbia Heat Impacts Prediction System (BCHIPS) to get advance warning of when heat can be a health risk. Early summer hot spells are most dangerous because our bodies are unaccustomed to handling heat.
  • Identify a cooler space in your home and prepare it so you can stay there at night. You may need to reconfigure daily living arrangements to deal with heat episodes.
  • Practice opening doors and windows to move cool air in at night and shutting windows during the day to prevent hot outdoor air from coming inside.
  • Make ice and prepare jugs of cool water.
  • Check that you have a working fan.
  • Identify people who may be more susceptible to heat and develop a buddy system. Check in with your hot weather buddy frequently especially in the evening and early morning.
  • Know the signs and symptoms of heat-related illness so you can identify problems early on. Headache, confusion, unsteadiness, loss of thirst, nausea/vomiting are signs of dangerous heat exhaustion.
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