Enlarge / Temperatures compared to averages on June 27. (credit: NASA EO)
The last week of June saw shocking temperatures in Oregon, Washington state, and British Columbia. Differentiating a forecast in Canada from a forecast in Phoenix is usually a breeze, but not in June. All-time high-temperature records—not just daily records—were smashed across the region. Portland International Airport broke its all-time record of 41.7°C (107°F) by a whopping 5°C (9°F). The small town of Lytton set a new record high for the entire country of Canada at 49.6°C (121.3°F) on June 29. In the days that followed, most of the town burned in a wildfire.
Folks in this region are not accustomed to such extreme heat, with something like half of homes having air conditioners. The number of heat-related deaths is not yet fully known.
Maximum annual temperatures recorded at Portland International Airport. (credit: Philip et al./WWA)
As with other extreme weather events, the World Weather Attribution team has generated a rapid analysis of this heat wave in the context of climate change. The results were released Wednesday. The team coordinates scientists to perform a standard set of analyses—the method has been peer-reviewed, but this new paper obviously has not, yet.
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