Because of rapid Arctic warming, the north/south temperature difference has diminished. This reduces pressure differences between the Arctic and mid-latitudes, weakening jet stream winds. And just as slow-moving rivers typically take a winding route, a slower-flowing jet stream tends to meander.posted by clew at 12:02 PM on January 30, 2019 [9 favorites]
ice storm; the hill"Canadian January Night," Alden Nowlan
a pyramid of black crystal
down with the cars
slide like phosphorescent beetles
while I, walking backwards in obedience
to the wind, am possessed
of the fearful knowledge
my compatriots share
but almost never utter:
this is a country
where a man can die
simply from being
caught outside.
¡°40 below keeps the riffraff out¡± is one of those things I¡¯m reminded of as someone who grew up in Minnesota. This is the old bromide that a lot of people in the region like to trot out during cold snaps. It's one of those coded phrases that progressive northern US folks like to pretend they don't ever deploy as they cling to the notion that their region is somehow less racist than the rest of the country.Funny, I live in Minnesota and I usually say it because it beats complaining about an unpleasant shared experience that we have no control over. Lucky I have self-righteous people to explain to me what I really mean.
What I do know, however, is beyond a certain point the only thing you feel outside is pain.posted by ZeusHumms at 8:49 AM on January 31, 2019 [3 favorites]
...
As long as it is above minus-20, it is not uncommon to see Minnesotans out and about without a hat or gloves, or even in shorts. I used to think they were insane, but having lived here for several winters I now understand if you¡¯re just making a quick jaunt out to the mailbox or into a store, it¡¯s overkill to go through the hassle of suiting up all the way. Rule of thumb: If the amount of time you expect to spend outdoors is less than the amount of time it will take to get your coat, hat, mittens and scarf on, you can just dash out of the house in whatever you¡¯re wearing.
Below minus-20, however, this calculus changes. Beyond this threshold, the thermal grace period shrinks rapidly and disappears altogether. By about 30 below the cold doesn¡¯t feel like cold anymore ¡ª it¡¯s just pure, unadulterated pain; a sharp, burning sensation. After a few moments, the burning gives way to a deep, dull ache that feels like it¡¯s radiating from your bones. I¡¯ve never been brave and/or dumb enough to test what comes after the ache, but my assumption is it¡¯s deeply unpleasant and possibly irreversible.
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posted by Hypatia at 10:35 AM on January 30, 2019 [59 favorites]