A winter storm continues to be on track to come through the region Thursday, with mountain snow and valley rain coming along with some very gusty winds, which should help clear out the valley inversions and murky air. In the meantime, winds will remain light through Wednesday, and a Red Flag Burn ban is in effect through Wednesday morning at least. Highs on Wednesday will be near 50, pop up to the mid-50s on Thursday before falling back to the 40s through the weekend.
The storm has kicked off a mountain Winter Weather Advisory from 7 am to 10 pm Thursday and a valley Wind Advisory from 6 am to 6 pm the same day.
Bob wondered if the elevation in Hawthorne had anything to do with a glass of water not freezing on a night in the 20s. Although there is a small effect on the freezing temperature of water with a change in altitude, it is so miniscule as to be negligible. So water will essentially freeze at 32 degrees in Hawthorne and in San Francisco.
So why didn’t the water in Bob’s cup not freeze? There could be several possibilities. Tomorrow I’ll put some out there.