An extreme heat warning was issued by the National Weather Service in Phoenix at 12:54 a.m. on Wednesday, June 18.

On Wednesday at 7:55 a.m. the National Weather Service issued a heat advisory valid for Thursday between 11 a.m. and 8 p.m.

A red flag warning was issued for Lake Mead and surrounding areas on Monday, with officials cautioning that weather conditions would be conducive to the spread of fires. "Any fires that develop will ...

Extreme heat warnings were in effect for parts of California, Arizona, and Nevada from the National Weather Service.