(Effective September 8, 2016)
St. Thomas, Ontario, The Health Unit is sending out an Extended Heat Warning because
Environment and Climate Change Canada is predicting hot humid weather again today.
When it is really hot and humid outside, your body may not be able to cool properly.
This can lead to heat exhaustion or even heat stroke which can be deadly.
The Health Unit sends out a heat warning when the weather forecast calls for the
following conditions two days or more in a row:
. a daytime high temperature that is above 31 without the nighttime temperature
cooling down below 20 or
. a humidex reading greater than 40 degrees Celsius.
Symptoms of heat-related illness may include: rapid breathing, dizziness or fainting,
vomiting, rapid heartbeat, and extreme thirst. Your body may make less urine (pee)
and your urine may be darker in colour.
If you or anyone you take care of has these symptoms, please move to a shaded or
air conditioned area, drink plenty of fluids, and rest. Contact your health care
practitioner, a friend and/or a family member.
Heat strokes are considered a medical emergency. Call 911 or your local emergency
number immediately if you or someone you care for has a high body temperature, is
unconscious, confused or has stopped sweating.
Friends, family and neighbors should check on those who may need help keeping cool
or taking other preventative actions.
"The elderly, very young and people with chronic illnesses are at higher risk of
suffering from heat-related illness," said Dr. Joyce Lock, Medical Officer of Health.
"However, even healthy people can be affected if they participate in strenuous activities
and do not take precautions."
Ways to help prevent heat-related illness:
. Drink plenty of fluids, especially water;
. Never leave anyone or pets in a parked car;
. Seek cooler or air conditioned spaces, such as shopping malls, arenas or any other
. If you are taking medication or have a health condition, ask your health care
practitioner or pharmacist if it increases your health risk in the heat and follow
. Check on elderly family members and neighbors daily to make sure they are keeping
. Wear light-weight, loose fitting clothing.