Minchin added: “Turns out we were right to stop. We both have frostbite and are being looked after incredibly well looked after. At the moment we remain in good spirits.”
She posted a video in which she and Anderson, 61, could be seen with her fingertips bandaged up.
March average temperatures in the Northwestern Territories range from -13C to -23C (8.6 to -9.4F) – but the region was particularly cold on Friday, dropping to -30C in places.
Wind chills were as cold as -36C, which can cause frostbite to set in in as little as 10 minutes. Extremities such as fingers and toes are particularly vulnerable.
Initial signs of frostbite can include numbness, pain, and skin appearing red or pale, according to the NHS.
However under prolonged exposure, symptoms can get worse to include:
hard, frozen skin that can be white, blue or blotchy
swelling and loss of feeling in the affected area
blisters filled with blood or clear/milky fluid
the skin turning black and hard as it starts to die (which may be harder to detect on black or brown skin)
Fellow presenters offered words of support after Minchin revealed her brush with the freezing cold.
“Big hugs,” wrote Good Morning Britain’s Susanna Reid, while former Blue Peter host Helen Skelton said: “What an achievement so far.”
Meanwhile, Morning Live’s Gaby Roslin commented: “Oh my word. Please take good care of yourself.”