It's sounding like it's getting pretty rough for some of you.
Please, please don't travel in a red zone.
My very very rough and unofficial rule of thumb is:
If it's red, stay put, take it extremely seriously. Prepare for prolonged disruption.
If it's amber, don't travel unless essential. Take it very seriously. Put everything away in the garden. Prepare for power cuts.
If it's yellow, don't walk in woodland, tidy up things you don't want to go wandering. Don't get aim to take the last train home! Be sensible, don't take risks.