The Met Office has issued an ice warning for Calderdale.
The yellow “be aware” warning has been issued and is valid from 3pm today to 11am tomorrow (Saturday).
A Met Office spokesperson said: “Icy stretches are likely to form on untreated surfaces on Friday evening, overnight and into Saturday morning.
“In addition, further accumulation of snow are likely on high ground, especially across the northern half of the yellow area.”
The public should be aware of the risk of difficult driving conditions.