Folk leger i vandet i varmen ved Santa Monica Beach onsdag, 16. juni, 2021, i Santa Monica, Californien Kredit:AP Photo/Ringo H.W. Chiu
En usædvanlig tidlig og langvarig hedebølge bragte flere trecifrede temperaturer onsdag til et stort skår af det vestlige USA, vækker bekymring for, at så ekstremt vejr kan blive den nye normal midt i en årtier lang tørke.
Phoenix, som oplever nogle af de højeste temperaturer i denne uge, bundet rekord for anden dag i træk, da den nåede 115 grader (46 Celsius) onsdag og forventedes at ramme 117 (47 Celsius) hver af de næste to dage, sagde National Weather Service.
Forskere, der studerer tørke og klimaændringer, siger, at folk, der bor i det amerikanske vest, kan forvente at se mere af det samme i de kommende år.
"Hedebølger bliver værre i Vesten, fordi jorden er så tør" fra regionens megatørke, sagde Park Williams, et University of California, Los Angeles, klima- og brandforsker, der har beregnet, at jorden i den vestlige halvdel af nationen er den tørreste, den har været siden 1895. "Vi kunne have to, tre, fire, fem af disse hedebølger inden udgangen af sommeren."
Et par skyer holdt temperaturerne lidt nede i ørkenregionen i det sydvestlige Arizona og det sydøstlige Californien. Men der var ingen reel lettelse forventet fra den gældende advarsel om overdreven varme før i det mindste søndag. Palm Springs ramte 120 grader i tirsdags,
Strandgæster myldrer i varmen ved Santa Monica Beach onsdag, 16. juni, 2021, i Santa Monica, Californien Kredit:AP Photo/Ringo H.W. Chiu
Højtrykskuppelen spredte sig over Vesten ugen før den officielle start på sommeren, forårsager usædvanlig varme dage og varme aftener.
Forventer folkemængder, der prøver at køle af, et halvt dusin livreddere i bredskyggede stråhatte og røde T-shirts over badedragter ventede på, at folk ankom til en bypool i downtown Phoenix, der byder på en vandrutsjebane og flere springvand. Flere gader væk, udendørs misters spritzed diners på restaurant terrasser.
I Californien, operatøren af statens elnet beder indbyggerne om frivilligt at spare på strømmen i et par timer torsdag aften, da rekordvarme dækker Vesten i denne uge.
Californiens uafhængige systemoperatør udstedte advarslen for at hjælpe med at lindre stress på nettet. Den beder folk om at indstille termostater til 78 grader eller højere, sluk unødvendigt lys og undgå at bruge store apparater. CEO Elliot Mainzer sagde, at nettet var stabilt, og at der ikke var nogen forventning om roterende strømafbrydelser, men det kan ændre sig, efterhånden som temperaturerne stiger i de kommende dage.
Folk køler af i vandet ved sammenløbet af South Platte River og Cherry Creek i Denver, onsdag den 16 juni, 2021. En hedebølge fortsætter med at svæve over det vestlige USA, skubbe temperaturen til 99 grader i Denver. Kredit:AP Photo/Brittany Peterson
Højere temperaturer kunne også mærkes i det normalt tempererede San Francisco Bay Area. Nogle få kølecentre var åbne, men for det meste tomme om eftermiddagen.
Kathleen Craft, krisecentre koordinator for byen Livermore, Californien, nævnte temperaturer havde nået 99 grader (37 Celsius) kort efter middag, men kun én kvinde var dukket op i byens kølecenter.
"Vi forventer, at vi vil se flere mennesker i morgen, når der forventes en temperatur på 108 grader, " sagde Craft.
Andre steder i Vesten, trecifret varme var forudsagt i Denver, som så rekordhøje 101 grader (38 Celsius) tirsdag. Vejrtjenesten udsendte en advarsel om overdreven varme for dele af det vestlige Colorado, hvoraf de fleste oplever ekstreme tørkeforhold.
Bekka Hamburg forsøgte at slå varmen ved at padle-boarding på en sø lige vest for downtown Denver onsdag.
Residents watch as flames from the Robertson Draw fire burn above Red Lodge, Mont., Tuesday evening, 15. juni, 2021. Wildfires burning in Montana exploded in size over the past 24 hours and triggered evacuations of people from rural areas as scorching heat and heavy winds stoked the blazes. Credit:Larry Mayer/The Billings Gazette via AP
"I rented this (paddleboard) a week ago knowing that it would be like 100 degrees, " the 24-year-old visiting from Indianapolis said. "I didn't pack any pants, didn't pack any T-shirts. I just packed tank tops and shorts."
Hamburg said it was the first time she had experienced Colorado's "dry heat, " adding that it's much easier to manage than the humid heat common in the Midwest.
I Nevada, Las Vegas hit 116 degrees (46.6 Celsius), breaking the record of 114 degrees (45.5 Celsius) for the date set during a record hot spell on June 16, 1940.
The region is expected to remain at 113 degrees (45 C) or hotter through Sunday, National Weather Service meteorologist John Salmen said, and still could top the all-time local high of 117 degrees (47 Celsius), set June 20, 2017.
"This is pretty impressive. We're seeing all-time records fall, " Salmen said.
People play in the water at Santa Monica Beach on Wednesday, June 16, 2021, in Santa Monica, Calif. Credit:AP Photo/Ringo H.W. Chiu
Stephanie Berry, a makeup artist, poses for a photo as bubbles fly over in the heat at Santa Monica Beach on Wednesday, June 16, 2021, in Santa Monica, Calif. Credit:AP Photo/Ringo H.W. Chiu
Bekka Hamburg paddle boards on Sloan's Lake in Denver on Wednesday, June 16, 2021. A heat wave continues to hover over the western U.S., pushing the temperature to 99 degrees in Denver. Hamborg, visiting from Indianapolis, said she rented the paddle board a week ago when she saw the forecast. Credit:AP Photo/Brittany Peterson
Hikers pause to watch the sunset at Papago Park during a heatwave where temperatures reached 115-degrees Tuesday, 15. juni, 2021, in Phoenix. Credit:AP Photo/Ross D. Franklin
A man walks dogs alongside Sloan's Lake in Denver on Wednesday, June 16, 2021. A heat wave continues to hover over the western U.S., pushing the temperature to 99 degrees in Denver. Credit:AP Photo/Brittany Peterson
A cyclist bikes past the setting sun at Papago Park during a heatwave where temperatures hit 115-degrees Tuesday, 15. juni, 2021, in Phoenix. Credit:AP Photo/Ross D. Franklin
People cool off in the water at the confluence of the South Platte River and Cherry Creek in Denver, on Wednesday June 16, 2021. A heat wave continues to hover over the western U.S., pushing the temperature to 99 degrees in Denver. Credit:AP Photo/Brittany Peterson
As temperatures soar above triple digits, a vendor pulls a wagon filled with water outside Coors Field during afternoon rush hour Tuesday, 15. juni, 2021, in Denver. Credit:AP Photo/David Zalubowski
New Mexico also experienced more record-breaking highs. But a possible respite was in sight with showers and thunderstorms expected in parts of the state.
I Montana, temperatures over 100 degrees (38 Celsius) have made it tougher to fight wildfires that have exploded in size, triggering evacuations and destroying an undetermined number of homes. Furious winds have stoked the flames and forced the crash-landing of a firefighting helicopter.
At least 14 new fires have been reported in Montana and Wyoming since Tuesday.
The dry weather was also being felt in Idaho, where authorities are preparing for what could be a challenging wildfire season.
Nick Nauslar, a meteorologist with the National Interagency Fire Center, told state officials this week that nearly 80% of Idaho is in drought and the rest will likely experience it in the coming months. He said Idaho had its second-driest spring in the last 126 years.
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