The Daily Parker

Politics, Weather, Photography, and the Dog

El Niño hace la nieva

A winter storm off the coast of North Carolina has brought snow to both Chicago and Raleigh:

25 mm of snow had fallen at O'Hare by 8:30 p.m. Wednesday, with snow still coming down hard. That was enough to push the city's official seasonal snow tally above 127 cm for the third consecutive year. There's been only one other string of three consecutive 50+ inch seasons in 125 years of snow measurements here and it occurred between 1976 to 1979.

Lake effect snows occur in especially cold environments which, because of the efficiency of ice crystal formation at low temperatures, frequently produce larger than typical accumulations from the limited amount of water vapor available. This leads to snowflakes which exhibit maximum "fluff". Estimates of Wednesday's snow puts snow/water ratios at 30 to 1---indicating the system's snowflakes had almost three times the volume of those which come down in more typical 10 to 1 ratio snow events. One witness, in describing the rate of snowfall in Evanston, compared the scene to a "snow globe." Another described "pure whiteout conditions with snow coming in horizontally" and still another characterized the snowfall intensity at its height Wednesday evening as "this season's heaviest."

In North Carolina the snow is causing the same kinds of disruptions as in Chicago—slow traffic, nervous parents, confused dogs—but...well, it's not quite as much snow:

But I have to agree with my friend Jamie, who, when I mentioned the comparison, said "you picked a good winter to stay in North Carolina." I'm thinking she's right.

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