Earlier quoted context omitted.
They wanted the 75% number, but if you look at e.g. the mid-west it's going to be insanely cold (I grew up there; it's expected to be cold right now, but this is something else.) It's colder than it typically is almost everywhere, so for people who live in the north it's a big deal. For people who live in the south and don't plan for freezing temps... also a big-ish deal.
Indeed -20F to -40F is very cold. I think this would be the more impressive headline. Over here we do not go much below 0F, maybe -10F, so -40F is difficult to imagine. About the south: I used to stay for a while in Austin, TX. During winter we had temperatures below freezing (just ice, no snow). The locals told us that this happens at least every other year. For this some were suprisingly unprepared though, in parti…
Last year it even snowed here. Twice. Nothing major, just a thin layer of snow for a day or two, but the schools shut down. When I lived in SD a light rain would lead to everyone driving 20mph below the speed limit on the freeway.