Winter Storm Ψ: Just the facts.
Ψ is the Greek letter "psi," the 23rd letter of the Greek alphabet. PSI (pounds per square inch) is also the unit of measurement for air pressure inside something inflated, like a football. (There is no measurement for overinflated egos.) And since the Super Bowl is the most overblown, underinflated event in our culture--matched only, perhaps, by the overhyped blizzard--it seemed apropos.
I just wanted to give you a sense of my thinking on the impending storm before the weekend; more precise timing, discussion of differences in regions, and fine-tuning will appear in updates between now and Sunday afternoon.
So here's what to expect on Sunday-Monday:
Light snow showers begin around 3-4pm Sunday. (Game time is 6:30pm EST, for your reference.) Steadier snow by 7 or 8pm. Snow continues overnight into Monday, beginning to taper off by about 3pm Monday.
Accumulations will generally be in the range of 6-8 inches.
Tuesday won't have any snow, but temperatures overnight from Monday into Tuesday will be the coldest of the season: lows around 0.
So my early calls for school percentages:
Chance of delay Monday, 31.4%
Chance of cancellation Monday, 88.8%
Chance of delay Tuesday, 62.1%
Chance of cancellation Tuesday, 21.7%
Stay tuned for updates!