heat and air quality warnings are in effect for parts of metro vancouver and the fraser valley, with temperatures expected to soar in the mid-30s c.
environment and climate change canada says metro residents in the tri-cities, surrey, langley and the fraser valley can expect highs to be in the low-to-mid 30s c, with overnight lows in the mid-to-high teens. the sweltering weather will also be combined with a haze and poor air quality from the wildfire smoke and elevated ground-level ozone, or smog.
metro issued an air quality warning late tuesday, urging residents to limit outdoor activity. regional authorities say the hot and sunny weather and the wildfire smoke have increased smog concentrations in parts of metro and the fraser valley.
smoke from wildfires in b.c., including the brunswick complex near boston bar and wildfires in the southern interior, have increased fine particulate matter concentrations.
temperatures over western areas of metro near the water, will likely be in the high 20s c before a cooling trend starts thursday, the federal weather agency said.
the agency warns that heat affects everyone, but the risks are greater for seniors, people who live alone, people with pre-existing health conditions such as diabetes, heart disease or respiratory disease, people with mental illness such as schizophrenia, depression or anxiety, people with substance-use disorders and people with limited mobility.
heat warnings have also been posted for much of b.c. from the north to south coasts.
in the fraser canyon, for example, where several out-of-control wildfires called the brunswick complex have forced evacuations of boston bar, daytime highs are expected to reach 40 c this afternoon.
in the okanagan, residents can expect daytime temperatures between 34 and 37 c, and overnight temperatures between 16 and 20 c.