The Pacific Northwest is shattering high-temperature records, and excessive heat warnings and advisories are in effect for much of the Northeast. ABC's Marci Gonzalez reports from Los Angeles.
We start the week with dueling heat waves both the East Coast and West Coast are bracing for more brutally hot temperatures. But as Britt Conway reports one is expected to be worse than the other.
![Extreme heat from coast to coast [Video]](https://video.newsserve.net/300/v/20210630/2106300441-Extreme-heat-from-coast-to-coast.jpg)
![Millions under heat alerts across the country [Video]](https://video.newsserve.net/300/v/20210628/2106281657-Millions-under-heat-alerts-across-the-country.jpg)
![Record heat wave hits the west coast [Video]](https://video.newsserve.net/300/v/20210627/2106271642-Record-heat-wave-hits-the-west-coast.jpg)
