The US National Weather Service Monday forecast persistent mid-summer heat across most of the continental US this week, with potential for temperatures to go over the 100 degree Fahrenheit levels in the southern High Plains.
Meanwhile, continued severe thunderstorms and heavy rainfall are likely in the region stretching from Midwest to Lower Great Lakes through Monday, with the weather conditions then expected to move to the Ohio Valley and Central Appalachians into Tuesday, the agency said.
The NWS issued a red flag warning early Monday for Idaho's Shoup, Salmon, Challis, Stanley, Dubois, Rexburg, Mackay, Arco, Rexburg, Rigby, Idaho Falls, Blackfoot, Palisades, Driggs, Pocatello, Blackfoot, Shoeshone, and Burley. These places are primarily provided electricity by Idaho Power's (IDA) and PacifiCorp's Rocky Mountain Power.
A similar warning was issued for Wyoming's Muddy Gap, Shirley Basin, Baggs, Rawlins, Garret, Medicine Bow, Elk Mountain, Saratoga, Centennial, Chugwater, Glendo, Glenrock, Bill, Douglas, Rusk, Torrington, Lance Creek, New Castle, Moorcroft, Gillette, Sundance and Hullett. Meanwhile, an evacuation immediate notice was raised for Dubois, Riverton and Lander, due to a wildfire near Johnny Lee`s Corner. Wyoming mostly falls under the service area of PacifiCorp's Rocky Mountain Power.
A red flag warning was also raised for Edgemont and Hot Springs in South Dakota.
The NWS issued an extreme heat warning was raised for Nevada's Gerlach, Fallon, Lovelock, Las Vegas, Beatty, and Carson City, which primarily falls under the service area of Berkshire Hathaway Energy unit NV Energy.
A similar warning was raised for California's Blythe, El Centro Imperial, Death Valley, Edwards AFB, Frazier Park, Tehachapi, Taft, Ridgecrest, Bakersfield, Taft, Lake Isabella, Delano, Porterville, Tulare, Visalia, Avenal, Coalinga, Hanford, Selma, Fresno, Madera, Oakhurst, Mariposa, Los Banos, and Merced.
PG&E (PCG) subsidiary Pacific Gas and Electric, Edison International's (EIX) Southern California Edison, and Sempra Energy (SRE) unit San Diego Gas & Electric are the major electricity service providers in these places.
Affected areas in Missouri included Columbia, Boonville, Sedalia, Warrensburg, Harrisonville, Buttler, Clinton, Jefferson City, Camdenton, Osage Beach, Nevada, Joplin, Washington, and St. Louis. Missouri is primarily served by Evergy (EVRG), Ameren's (AEE) Missouri unit, and Algonquin Power & Utilities (AQN) subsidiary Liberty.
Paola and areas near Iola in Kansas, where Evergy is among the major service providers, were also placed under an extreme heat warning watch.
In Arizona, the NWS issued an extreme heat warning for Yuma, Parker, Kingman, and Bullhead City, while a flash flood warning was raised for Nogales, Gila Bend, Phoenix, and Wickenburg. A severe thunderstorm warning was also raised for parts of Parker. Arizona is primarily served by Pinnacle West Capital (PNW) unit Arizona Public Service Company, and UNS Energy subsidiaries Unisource and Tucson Electric Power.
Meanwhile, in Illinois, an extreme heat warning was issued for Chester, and areas near Carlinville and Vandalia, while a flash flood warning was issued for Kankakee, Ottawa, and Pontiac. A severe thunderstorm warning was issued for areas near Kankakee. Illinois is primarily served by Ameren's Illinois unit and Exelon (EXC) subsidiary ComEd.
The NWS also issued a severe thunderstorm warning for some areas of Michigan and Indiana.