People made use of a cooling center at the Oregon Convention Center during Portland's unprecedented heat wave on Monday, June 28, 2021. The building's air conditioning provided relief from temperatures that rose to record levels.
The heat dome that brought record-shattering temperatures to Portland and much of the Pacific Northwest a year ago was an outlier among outliers.
Scientists worked quickly to figure out exactly what happened to spike temperatures as much as 30 degrees Fahrenheit above normal and kill hundreds across the region.
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