Forecast NWS NDFD Max temperatures (F) and departure from climatology (fill) in the United States, 25 July 2021 - 28 July 2021. Graphic: NOAA / NWS

Next 2021 heatwave to cover huge swath of U.S., bringing high temperatures to millions

By Jeanine Santucci 24 July 2021 (USA TODAY) – Most of the nation can expect above average temperatures in coming days as a giant heat wave is expected to spread across much of the continental U.S. beginning next week. The heat wave will bring temperatures that are at least 5 to 10 degrees higher than average to much of the country, according […]

Thousands of dead mussels are seen at the waterline in British Columbia, killed by the deadly heatwave 2021. More than one billion marine animals along Canada’s Pacific coast are likely to have died from the record heatwave, experts warn, highlighting the vulnerability of ecosystems unaccustomed to extreme temperatures. Photo: Christopher Harley / The Guardian

Heat dome probably killed 1 billion marine animals on Canada coast in 2021 – “A lot of species are not going to be able to keep up with the pace of change”

By Leyland Cecco 8 July 2021 TORONTO (The Guardian) – More than one billion marine animals along Canada’s Pacific coast are likely to have died from last week’s record heatwave, experts warn, highlighting the vulnerability of ecosystems unaccustomed to extreme temperatures. The “heat dome” that settled over western Canada and the north-western US for five days pushed temperatures […]

A damaged house is seen at the Ahr river in Insul, western Germany, 15 July 2021. Due to record rainfall the Ahr river dramatically went over the banks the evening before. At least 42 people died after record rainfall caused heavy flooding and turned streams and streets into raging torrents, sweeping away cars and causing some buildings to collapse. Photo: Michael Probst / AP Photo

Record rainfall in Europe after record heatwave – At least 42 dead and dozens missing in Germany floods – “We have never seen such a disaster. It’s really devastating.”

15 July 2021 (BBC News) – At least 42 people have died in western Germany and many more are missing following severe floods, police say. The worst of the flooding has been in the states of Rhineland-Palatinate and North Rhine-Westphalia, where buildings and cars have been washed away. At least six others have died in […]

A truck driver who hauls fire equipment watches as the Sugar Fire, part of the Beckwourth Complex Fire, burns in Doyle, California, on 10 July 2021. Photo: Noah Berger / AP Photo

California and other parts of the West broil and burn in third 2021 heatwave – “Do not stop and take pictures”

By Christopher Weber 12 July 2021 (AP) – Firefighters working in searing heat struggled to contain the largest wildfire in California this year while state power operators urged people to conserve energy after a huge wildfire in neighboring Oregon disrupted the flow of electricity from three major transmission lines. A large swath of the West […]

Aerial view of the charred remnants of homes and buildings in Lytton, B.C. that were destroyed by a wildfire on 30 June 2021. This photo was taken a week later, on 6 July 2021. Photo: Jennifer Gauthier / REUTERS

Residents to tour remains of Lytton as wildfires continue to burn across British Columbia – “Nothing about this feels real”

9 July 2021 (CBC News) – Residents of the B.C. village virtually destroyed by a fast-moving wildfire last week will be allowed to survey the damage for the first time Friday as part of a bus tour. The Thompson-Nicola Regional District organized the tour of Lytton to allow residents to see the aftermath of the […]

Map showing Excessive Heat Warnings beginning 9 July 2021 for the entire Sacramento Valley, northern San Joaquin Valley, the foothills, and mountains up to ~ 6,000 ft. The hottest days are Saturday and Sunday, with many Valley communities approaching or exceeding 110°F, locally 115°F. Graphic: NWS Sacramento / Twitter

Third heatwave in 2021 building across Western U.S. – “Confidence is very high for a dangerous heatwave to persist through Monday and maybe into Tuesday”

By Matthew Cappucci 8 July 2021 (The Washington Post) – Last week, a “thousand-year” heatwave baked the Pacific Northwest and adjacent British Columbia with widespread highs topping 100 degrees, resulting in a death toll in the hundreds. Lytton, Canada, climbed to 121 degrees and established new national records three days in a row before the town burned […]

An aerial view shows low water levels at Lake Oroville, which is the second largest reservoir in California and according to daily reports of the state's Department of Water Resources has declined to near 35 percent capacity due to record drought and heat, near Oroville, California, 16 June 2021. Photo: Aude Guerrucci / REUTERS

California calls for power conservation as new 2021 heatwave looms

8 July 2021 (Reuters) – California’s power grid operator on Thursday issued a “flex” alert for Friday, asking consumers to conserve energy from 4 p.m. to 9 p.m. as high demand driven by extreme heat could trigger a capacity shortfall on the state’s electric grid. If the grid is still unable to meet power needs […]

Anomalies of 2021 highest daily maximum temperature (TXx) in Western North America, assuming the rest of the summer is cooler than the June 2021 heatwave. Note that some stations do not have data up to the peak of the heatwave yet and hence underestimate the event. The black box indicates the study region. Data: GHCN-D downloaded on 4 July 2021. Graphic: Philip, et al., 2021 / World Weather Attribution

Western North American extreme heat in 2021 virtually impossible without human-caused climate change

7 July 2021 (World Weather Attribution) – During the last days of June 2021, Pacific northwest areas of the U.S. and Canada experienced temperatures never previously observed, with records broken in many places by several degrees Celsius. Multiple cities in the U.S. states of Oregon and Washington and the western provinces of Canada recorded temperatures […]

Map showing the 30-year summer temperature increases for the continental United States, 1991-2020. Data: Provided by Atmospheric and Environmental Research/Verisk in July 2021. “The ridiculous temperatures in the Pacific Northwest may on one hand be considered a black swan (ultra-rare) event, but on the other hand are totally consistent with multi-decadal trends,” says meteorologist Judah Cohen. Graphic: Judah Cohen / Atmospheric and Environmental Research / Verisk / AP

Summer swelter trend: U.S. West gets hotter days, East hot nights – “Hotter summers for the broader region are here to stay”

By Seth Borenstein 4 July 2021 (AP) – As outlandish as the killer heatwave that struck the Pacific Northwest was, it fits into a decades-long pattern of uneven summer warming across the United States. The West is getting roasted by hotter summer days while the East Coast is getting swamped by hotter and stickier summer […]

Aerial view of smoke rising from fires at Long Loch and Derrickson Lake in Central Okanagan in Canada on 30 June 2021. Photo: B.C. Wildfire Service / Reuters

Unprecedented heat, hundreds dead, and a town destroyed – Climate change is frying the Northern Hemisphere in 2021 – “This is literally the deadliest weather on record for the U.S. Pacific Northwest and far southwest Canada region”

By Angela Dewan 4 July 2021 (CNN) – The tiny town of Lytton has come to hold a grim record. On Tuesday, it experienced Canada’s highest-ever temperature, in an unprecedented heatwave that has over a week killed hundreds of people and triggered more than 240 wildfires across British Columbia, most of which are still burning. Lytton […]

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