National Weather Service.
Steve Mitchell, MD, medisinsk direktør, beredskapsavdeling, UW Medicine / Harborview Medical Center, Seattle.
Lisa Jaffe, frilansjournalist, Seattle.
Elisa Claassen, kontorarbeider og fotograf, Noonsack, WA.
CDC: “Advarselstegn og symptomer på varmerelatert sykdom.”
King County Medical Examiner’s Office.
Sean McGann, MD, akuttlege i Philadelphia; talsperson, American College of Emergency Physicians.
Delia Hernandez, Oregon Health Authority talsperson.
Erklæring, British Columbia Coroners Service, 30. juni 2021.
Kaptein Timothy R. Fox, talsperson, Oregon State Police.