The Omicron wave has been a source of concern for my family and my town. School systems north of us have pre-emptively closed schools and have gone remote for the week. The school superintendents where I live are adamant that they cannot (or, really, will not) close schools unless (or until) there is a breakout in a particular school building. Because schools have been closed since December 24, there can be no outbreaks inside particular schools.
Early this morning, all the schools in my town were closed for a snow day. Snow is in the forecast, but it has not snowed yet. I think the superintendents took advantage of an iffy weather forecast to close the schools for the day, to push off the whatever outbreaks occur for another day. Parents in town seem to think that the closure has more to due to with teacher- and bus driver shortages than with the weather forecast.