An unusually early heatwave is set to sweep through the Pacific north-west of the US this weekend as the region braces for potentially record-breaking temperatures.
On Saturday, the National Weather Service (NWS) warned that “much above average to record heat building [will occur] across the Pacific north-west” as temperatures reach the high 80s and 90s degrees Fahrenheit, with the warmth expected to spread into the Rockies and Great Plains by early next week.