index is a combination index of ambient temperature and relative humidity.
The weather bureau also said the humidex
may climb into the 30s.
To estimate heat exposure, many environmental health studies use indices meant to capture the combined experience of several weather factors, such as the Universal Thermal Climate Index (UTCI 2012) and the humidex
, which is used by Canada's weather office (Environment Canada 2013).
To provide a simplistic example, on the day with the greatest burden of heat illness, the maximum ambient temperature was 36[degrees]C in Toronto and the Humidex
peaked at 47[degrees]C, whereas the maximum daily temperature and Humidex
in the preceding week had a mean of 30[degrees]C and 39[degrees]C, respectively.
A heat advisory is declared when a humidex
of 36 or more is forecast for at least two consecutive days.
But sitting in my air-conditioned office on a day when the humidex
reads 40 degrees Celsius, I reflect on my short (and colder) time in the Arctic.
The air can be either humid or extremely dry during heat waves; a combination of high temperature and high humidity can produce a humidex
value (a measure of the body's perception of air temperature) in the high 40s ([degrees]C), which is extremely dangerous.
Air Quality exhaust machine will be installed and a final air test conducted.
Even with humidex
temperatures soaring into the thirties, the turnout was excellent.
Take our words for it: humidex
, megaplex, and antitheft can be found in our current dictionaries.
that exchanges the air in the home six to seven times a day, creates a very healthy interior space.
At the Active watch level, following a heat warning by Environment Canada(forecast of temperatures [greater than or equal to] 30[degrees]C and Humidex
[greater than or equal to] 40), the system automatically transmits a heat warning to various partners.