That’s a good question.
As I write and post this Wednesday night a wind child advisory is in effect until 10:00 Thursday morning. Wind chills will range from 20 to 30 below zero. From the Weather Channel:
THE COLD WIND CHILLS WILL CAUSE FROSTBITE IN AS LITTLE AS 30 MINUTES TO EXPOSED SKIN. LIMIT OUTDOOR EXPOSURE. PROTECT YOURSELF AND YOUR PETS FROM THE COLD. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS. MAKE SURE YOU WEAR A HAT AND GLOVES.
Then comes a Winter Storm Watch from Friday afternoon through Saturday afternoon.
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW… SLEET… OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
Madison was considering closing schools Thursday.
In Milwaukee schools take their lead from the Milwaukee Public Schools (MPS). If MPS closes then generally most other schools in the area close as well.
A long time ago, I’d say 20 years, an MPS official in the know told me what the criteria was for closing schools.
Dangerous wind chills?
Predicted snow totals?
None of the above.
Can the busses start?
If yes, school’s on.
Does the same simple scenario hold true today? I don’t know.
But one wonders just what magic formula the school intelligentsia folks use to pull the plug on classes.