PORTLAND, Ore.—Intense. Prolonged. Record-breaking. Unprecedented. Abnormal. Dangerous. That’s how the National Weather Service described the historic heat wave that is hitting the Pacific Northwest, pushing daytime temperatures into the triple digits and breaking all-time high temperature records in places where many residents don’t have air conditioning. Sunday’s forecasted temperature in Portland, Oregon—112 degrees Fahrenheit (44 Celsius)—would break the all-time temperature record of 108 degrees, set just a day earlier. The forecast calls for another 112-degree day on Monday. The temperature was expected to rise to an all-time record of 104 F (40 C) at the Seattle-Tacoma International Airport on Sunday and surpass that to reach a blistering 111 F (43.9 C) on Monday, as the excessive heat warning continues for the region. King County closed several COVID-19 testing sites because of the heat. Seattle opened additional public library branches Sunday, and will again Monday, to provide additional cooling centers, The …