The US National Weather Service said a majority of northeast Texas into the mid-Mississippi Valley is expected to experience hot temperatures and high humidity into this weekend.
The region stretching from the central Plains into the upper Midwest/Great Lakes, and Four Corners states is likely to face intermittent heavy to excessive rainfall through Saturday, with potential for areas of flooding.
The NWS issued a red flag warning for Nevada's Austin, Eureka, and Tonopah, primarily served by Berkshire Hathaway Energy unit NV Energy.
In Colorado, the NWS issued a flash flood warning for Grand Junction and Telluride. Xcel Energy (XEL) and Black Hills (BKH) unit Black Hills Energy are the primary electricity service providers in Colorado.
A flood warning was raised for Atchison and Leavenworth in Kansas, where Evergy (EVRG) is among the major electricity service providers.
A similar warning was also raised for Missouri's St. Joseph and Chillicothe. Evergy, Ameren's (AEE) Missouri unit, and Algonquin Power & Utilities (AQN) subsidiary Liberty are the major service providers in the state.
A flood warning was also issued for areas between Fort Wayne and Marion.