The US National Weather Service said parts of northern and central High Plains are expected to experience fire weather concerns through Saturday due to dry and breezy conditions.
Meanwhile, portions of central Nebraska to the Upper Midwest could likely face severe thunderstorms.
The NWS issued a red flag warning early Friday for Nebraska's Harrison, Chadron, Alliance, Scottsbluff, Bridgeport, Harrisburg, Kimball, Sidney, Oshkosh, Chappell, Hyannis, Arthur, Ogallala, Mullen, Valentine, Thedford, Tryon, Stapleton, North Platte, Springview, Ainsworth, Brewster, and Butte.
A major part of the state is covered under the service area of regional transmission organization Southwest Power Pool, with Midcontinent ISO also serving some areas.
A similar warning was raised for Idaho's Dubois, Mackay, Arco, Rigby, Rexburg, Idaho Falls, Driggs, Palisades, Pocatello, and Blackfoot. Idacorp's (IDA) Idaho Power, Avista's (AVA) Avista Utilities, and PacifiCorp's Rocky Mountain Power are the major electricity service providers in Idaho.
Affected areas in Wyoming include Torrington, Wheatland, Chugwater, Laramie, Bosler, Pinne Bluffs, Cheyenne, and Newcastle. Wyoming mostly falls under the service area of Rocky Mountain Power.
In South Dakota, a red flag warning was raised for Custer, Edgemont, Hot Springs, Hermosa, Pine Ridge, Wall, Kadoka, Martin, Murdo, and areas near Chamberlain and Pierre. NorthWestern Energy (NWE) and Black Hills (BKH) subsidiary Black Hills Energy are among the major electric utility service providers operating in these places.
The NWS issued an extreme heat warning in Arizona's Parker and Yuma, primarily served by Pinnacle West Capital (PNW) unit Arizona Public Service Company.
California's Blythe, El Centro Imperial, Palm Springs, Mount Laguna, Julian, Borrego Springs, Indio, Palm Springs, and Beaumont, where Edison International's (EIX) Southern California Edison, and Sempra Energy (SRE) unit San Diego Gas & Electric are among the service providers.
Flash flood warnings were raised for Batesville, and areas near Jonesboro in Arkansas, served by Entergy's (ETR) Arkansas unit. Areas near Clarksburg and Sutton in West Virginia, served by FirstEnergy's (FE) Mon Power, were also placed under a flash flood and flood warning watch.
The NWS also issued flash flood warnings for areas near Campbellsville and Elizabethtown in Kentucky, while a flood warning was issued for Jackson in Ohio.