Authorities warn of power outages, wildfires as record temps rise out West

Twelve states are on heat and fire alerts from California to Iowa as the historic heat wave in the West continues.
1:43 | 06/18/21

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Transcript for Authorities warn of power outages, wildfires as record temps rise out West
Ginger, appreciate you keeping an eye on it. With more on this historic heat Matt Gutman is in los Angeles with the latest. Reporter: This morning the dome of heat scorching the west is expanding and shattering records. For multiple days tens of millions of Americans sweltering in temperatures above 100 degrees triggering these fires in Arizona and Nevada and pushing electrical grids to the brink. The skyline in Dallas darkened. From Texas to California utility companies are begging people to set their thermostats at 78 degrees. It's still technically spring. It is also super charging the mega drought drying up Lakes and reservoirs that millions rely on for their water supply. Until about a year ago, this was 50 feet under water. Fol some lake has been shrinking so fast that by December it could be just two rivers and a small pool of water. California has some of the best modeling anywhere for droughts, yet it could not predict how bad this is. Yes, we weren't close. Reporter: Governor Newsom declaring a state of emergency citing the extreme heat. This frees up utility companies to ramp up operations to keep air conditioners going. Extreme heat kills more people every year than any other kind of extreme weather. Whit? Big concern. Matt, thank you so much.

This transcript has been automatically generated and may not be 100% accurate.

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