National Weather Service (NWS) meteorologists are warning hundreds of thousands of people across two states of a "major" risk of heat-related illness later this week as above-normal temperatures persist across the Pacific Northwest.

Why It Matters

September 1 marks the first day of meteorological fall, though typical fall doesn't begin until September 22 at the Autumn Equinox. The end of summer has brought contrasting weather across the country. A cold front ushered in below-average temperatures in many states this week, dropping temperatures as far as 30 degrees below average for parts of the Central and Southern Plains, including Texas. Meanwhile, abnormally high temperatures have hit the Pacific Northwest and parts of Alaska, prompting heat-related weather alerts.

What to Know

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